Cisco IOS IPv6 Command Reference
IPv6 Commands: show ipv6 ri to si
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IPv6 Commands: show ipv6 ri to si

Contents

IPv6 Commands: show ipv6 ri to si

show ipv6 rip

To display information about current IPv6 Routing Information Protocol (RIP) processes, use the show ipv6 rip command in user EXEC or privileged EXEC mode.

Cisco IOS XE Release 3.9S, Cisco IOS Release 15.3(2)S, and Later Releases

show ipv6 rip [ name] [ vrf vrf-name] [ database | next-hops ]

Releases Prior to Cisco IOS XE Release 3.9S and Cisco IOS Release 15.3(2)S

show ipv6 rip [ name] [ database | next-hops ]

Syntax Description

name

(Optional) Name of the RIP process. If the name is not entered, details of all configured RIP processes are displayed.

vrf vrf-name

(Optional) Displays information about the specified Virtual Routing and Forwarding (VRF) instance.

database

(Optional) Displays information about entries in the specified RIP IPv6 routing table.

next-hops

(Optional) Displays information about the next hop addresses for the specified RIP IPv6 process. If no RIP process name is specified, the next-hop addresses for all RIP IPv6 processes are displayed.

Command Default

Information about all current IPv6 RIP processes is displayed.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(2)T

This command was introduced.

12.0(21)ST

This command was integrated into Cisco IOS Release 12.0(21)ST.

12.0(22)S

This command was integrated into Cisco IOS Release 12.0(22)S. The name argument and the database and next-hops keywords were added.

12.2(13)T

The command was modified. The name argument, and the database and next-hops keywords were added.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Cisco IOS XE Release 2.1

This command was implemented on Cisco 1000 Series Aggregation Services Routers.

Cisco IOS XE Release 3.9S

This command was modified. The vrf vrf-name keyword/argument pair was added.

15.3(2)S

This command was integrated into Cisco IOS Release 15.3(2)S.

15.3(3)M

This command was integrated into Cisco IOS Release 15.3(3)M.

Examples

The following is sample output from the show ipv6 rip command:

Device# show ipv6 rip

RIP process "one", port 521, multicast-group FF02::9, pid 55
     Administrative distance is 25. Maximum paths is 4
     Updates every 30 seconds, expire after 180
     Holddown lasts 0 seconds, garbage collect after 120
     Split horizon is on; poison reverse is off
     Default routes are not generated
     Periodic updates 8883, trigger updates 2
  Interfaces:
    Ethernet2
  Redistribution:
RIP process "two", port 521, multicast-group FF02::9, pid 61
     Administrative distance is 120. Maximum paths is 4
     Updates every 30 seconds, expire after 180
     Holddown lasts 0 seconds, garbage collect after 120
     Split horizon is on; poison reverse is off
     Default routes are not generated
     Periodic updates 8883, trigger updates 0
  Interfaces:
    None
  Redistribution:

The table below describes the significant fields shown in the display.

Table 1 show ipv6 rip Field Descriptions

Field

Description

RIP process

The name of the RIP process.

port

The port that the RIP process is using.

multicast-group

The IPv6 multicast group of which the RIP process is a member.

pid

The process identification number (pid) assigned to the RIP process.

Administrative distance

Used to rank the preference of sources of routing information. Connected routes have an administrative distance of 1 and are preferred over the same route learned by a protocol with a larger administrative distance value.

Updates

The value (in seconds) of the update timer.

expire

The interval (in seconds) in which updates expire.

Holddown

The value (in seconds) of the hold-down timer.

garbage collect

The value (in seconds) of the garbage-collect timer.

Split horizon

The split horizon state is either on or off.

poison reverse

The poison reverse state is either on or off.

Default routes

The origination of a default route into RIP. Default routes are either generated or not generated.

Periodic updates

The number of RIP update packets sent on an update timer.

trigger updates

The number of RIP update packets sent as triggered updates.

The following is sample output from the show ipv6 rip database command.

Device# show ipv6 rip one database

RIP process "one", local RIB
 2001:72D:1000::/64, metric 2
     Ethernet2/2001:DB8:0:ABCD::1, expires in 168 secs
 2001:72D:2000::/64, metric 2, installed
     Ethernet2/2001:DB8:0:ABCD::1, expires in 168 secs
 2001:72D:3000::/64, metric 2, installed
     Ethernet2/2001:DB8:0:ABCD::1, expires in 168 secs
     Ethernet1/2001:DB8::1, expires in 120 secs
 2001:72D:4000::/64, metric 16, expired, [advertise 119/hold 0]
     Ethernet2/2001:DB8:0:ABCD::1
 3004::/64, metric 2 tag 2A, installed
     Ethernet2/2001:DB8:0:ABCD::1, expires in 168 secs

The table below describes the significant fields shown in the display.

Table 2 show ipv6 rip database Field Descriptions

Field

Description

RIP process

The name of the RIP process.

2001:72D:1000::/64

The IPv6 route prefix.

metric

Metric for the route.

installed

Route is installed in the IPv6 routing table.

Ethernet2/2001:DB8:0:ABCD::1

Interface and LL next hop through which the IPv6 route was learned.

expires in

The interval (in seconds) before the route expires.

advertise

For an expired route, the value (in seconds) during which the route will be advertised as expired.

hold

The value (in seconds) of the hold-down timer.

tag

Route tag.

The following is sample output from the show ipv6 rip next-hops command.

Device# show ipv6 rip one next-hops

RIP process "one", Next Hops
  FE80::210:7BFF:FEC2:ACCF/Ethernet4/2 [1 routes]
  FE80::210:7BFF:FEC2:B286/Ethernet4/2 [2 routes]

The table below describes the significant fields shown in the display.

Table 3 show ipv6 rip next-hops Field Descriptions

Field

Description

RIP process

The name of the RIP process.

2001:DB8:0:1::1/Ethernet4/2

The next-hop address and interface through which it was learned. Next hops are either the addresses of IPv6 RIP neighbors from which we have learned routes or explicit next hops received in IPv6 RIP advertisements.

Note   

An IPv6 RIP neighbor may choose to advertise all its routes with an explicit next hop. In this case the address of the neighbor would not appear in the next hop display.

[1 routes]

The number of routes in the IPv6 RIP routing table using the specified next hop.

The following is sample output from the show ipv6 rip vrf command:

Device# show ipv6 rip vrf red 
					
					RIP VRF "red", port 521, multicast-group 2001:DB8::/32, pid 295
     Administrative distance is 120. Maximum paths is 16
     Updates every 30 seconds, expire after 180
     Holddown lasts 0 seconds, garbage collect after 120
     Split horizon is on; poison reverse is off
     Default routes are not generated
     Periodic updates 99, trigger updates 3
     Full Advertisement 0, Delayed Events 0
  Interfaces:
    Ethernet0/1
    Loopback2
  Redistribution:
    None

The table below describes the significant fields shown in the display.

Table 4 show ipv6 rip vrf Field Descriptions

Field

Description

RIP VRF

The name of the RIP VRF.

port

The port that the RIP process is using.

multicast-group

The IPv6 multicast group of which the RIP process is a member.

Administrative distance

Used to rank the preference of sources of routing information. Connected routes have an administrative distance of 1 and are preferred over the same route learned by a protocol with a larger administrative distance value.

Updates

The value (in seconds) of the update timer.

expires after

The interval (in seconds) in which updates expire.

Holddown

The value (in seconds) of the hold-down timer.

garbage collect

The value (in seconds) of the garbage-collect timer.

Split horizon

The split horizon state is either on or off.

poison reverse

The poison reverse state is either on or off.

Default routes

The origination of a default route into RIP. Default routes are either generated or not generated.

Periodic updates

The number of RIP update packets sent on an update timer.

trigger updates

The number of RIP update packets sent as triggered updates.

The following is sample output from show ipv6 rip vrf next-hops command:

Device# show ipv6 rip vrf blue next-hops 
					
					RIP VRF "blue", local RIB
      AAAA::/64, metric 2, installed
     Ethernet0/0/FE80::A8BB:CCFF:FE00:7C00, expires in 177 secs

Table 5 show ipv6 rip vrf next-hops Field Descriptions

Field

Description

RIP VRF

The name of the RIP VRF.

metric

Metric for the route.

installed

Route is installed in the IPv6 routing table.

Ethernet0/0/FE80::A8BB:CCFF:FE00:7C00

The next hop address and interface through which it was learned. Next hops are either the addresses of IPv6 RIP neighbors from which we have learned routes, or explicit next hops received in IPv6 RIP advertisements.

Note   

An IPv6 RIP neighbor may choose to advertise all its routes with an explicit next hop. In this case the address of the neighbor would not appear in the next hop display.

expires in

The interval (in seconds) before the route expires.

The following is sample output from show ipv6 rip vrf database command:

Device# show ipv6 rip vrf blue database
					
								RIP VRF "blue", Next Hops
							FE80::A8BB:CCFF:FE00:7C00/Ethernet0/0 [1 paths]

Table 6 show ipv6 rip vrf database Field Descriptions

Field

Description

RIP VRF

The name of the RIP VRF.

FE80::A8BB:CCFF:FE00:7C00/Ethernet0/0

Interface and LL next hop through which the IPv6 route was learned.

1 paths

Indicates the number of unique paths to this router that exist in the routing table.

Related Commands

Command

Description

clear ipv6 rip

Deletes routes from the IPv6 RIP routing table.

debug ipv6 rip

Displays the current contents of the IPv6 RIP routing table.

ipv6 rip vrf-mode enable

Enables VRF-aware support for IPv6 RIP.

show ipv6 route

To display contents of the IPv6 routing table, use the show ipv6 route command in user EXEC or privileged EXEC mode.

show ipv6 route [ ipv6-address | ipv6-prefix/prefix-length [ longer-prefixes ] | [ protocol ] | [ repair] | [ updated [ boot-up ] [ day month ] [ time ] ] | interface type number | nd | nsf | table table-id | watch ]

Syntax Description

ipv6-address

(Optional) Displays routing information for a specific IPv6 address.

ipv6-prefix

(Optional) Displays routing information for a specific IPv6 network.

/prefix-length

(Optional) The length of the IPv6 prefix. A decimal value that indicates how many of the high-order contiguous bits of the address comprise the prefix (the network portion of the address). A slash mark must precede the decimal value.

longer-prefixes

(Optional) Displays output for longer prefix entries.

protocol

(Optional) The name of a routing protocol or the keyword connected, local, mobile, or static. If you specify a routing protocol, use one of the following keywords: bgp, isis, eigrp, ospf, or rip.

repair

(Optional) Displays routes with repair paths.

updated

(Optional) Displays routes with time stamps.

boot-up

(Optional) Displays routing information since bootup.

day month

(Optional) Displays routes since the specified day and month.

time

(Optional) Displays routes since the specified time, in hh:mm format.

interface

(Optional) Displays information about the interface.

type

(Optional) Interface type.

number

(Optional) Interface number.

nd

(Optional) Displays only routes from the IPv6 Routing Information Base (RIB) that are owned by Neighbor Discovery (ND).

nsf

(Optional) Displays routes in the nonstop forwarding (NSF) state.

repair

(Optional)

table table-id

(Optional) Displays IPv6 RIB table information for the specified table ID. The table ID must be in hexadecimal format. The range is from 0 to 0-0xFFFFFFFF.

watch

(Optional) Displays information about route watchers.

Command Default

If none of the optional syntax elements is chosen, all IPv6 routing information for all active routing tables is displayed.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(2)T

This command was introduced.

12.2(8)T

This command was modified. The isis keyword was added, and the I1 - ISIS L1, I2 - ISIS L2, and IA - ISIS interarea fields were included in the command output.

12.0(21)ST

This command was integrated into Cisco IOS Release 12.0(21)ST.

12.0(22)S

This command was integrated into Cisco IOS Release 12.0(22)S. The timer information was removed, and an indicator was added to display IPv6 Multiprotocol Label Switching (MPLS) interfaces.

12.2(13)T

This command was modified. The timer information was removed, and an indicator was added to display IPv6 MPLS virtual interfaces.

12.2(14)S

This command was modified. The longer-prefixes keyword was added.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Cisco IOS XE Release 2.1

This command was implemented on Cisco ASR 1000 Series Aggregation Services Routers.

12.4(24)T

This command was modified in a release earlier than Cisco IOS Release 12.4(24)T. The table, nsf, watch, and updated keywords and the day, month, table-id, and time arguments were added.

15.2(2)S

This command was modified. The command output was enhanced to include route tag values in dotted-decimal format.

Cisco IOS XE Release 3.6S

This command was modified. The command output was enhanced to include route tag values in dotted-decimal format.

15.1(1)SY

The nd keyword was added.

Cisco IOS XE Release 3.2SE

This command was integrated into Cisco IOS XE Release 3.2SE.

15.2(2)SA2

This command was implemented on the Cisco ME 2600X Series Ethernet Access Switches.

Usage Guidelines

The show ipv6 route command provides output similar to the show ip route command, except that the information is IPv6-specific.

When the ipv6-address or ipv6-prefix/prefix-length argument is specified, the longest match lookup is performed from the routing table, and only route information for that address or network is displayed. When a routing protocol is specified, only routes for that protocol are displayed. When the connected, local, mobile, or static keyword is specified, only the specified type of route is displayed. When the interface keyword and type and number arguments are specified, only routes for the specified interface are displayed.

Examples

The following is sample output from the show ipv6 route command when no keywords or arguments are specified:

Device# show ipv6 route

IPv6 Routing Table - 9 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       I1 - ISIS L1, I2 - ISIS L2, IA - IIS interarea
B   2001:DB8:4::2/48 [20/0]
     via FE80::A8BB:CCFF:FE02:8B00, Serial6/0
L   2001:DB8:4::3/48 [0/0]
     via ::, Ethernet1/0
C   2001:DB8:4::4/48 [0/0]
     via ::, Ethernet1/0
LC  2001:DB8:4::5/48 [0/0]
     via ::, Loopback0
L   2001:DB8:4::6/48 [0/0]
     via ::, Serial6/0
C   2001:DB8:4::7/48 [0/0]
     via ::, Serial6/0
S   2001:DB8:4::8/48 [1/0]
     via 2001:DB8:1::1, Null
L   FE80::/10 [0/0]
     via ::, Null0
L   FF00::/8 [0/0]
     via ::, Null0

The table below describes the significant fields shown in the display.

Table 7 show ipv6 route Field Descriptions

Field

Description

Codes:

Indicates the protocol that derived the route. Values are as follows:

  • B—BGP derived
  • C—Connected
  • I1—ISIS L1—Integrated IS-IS Level 1 derived
  • I2—ISIS L2—Integrated IS-IS Level 2 derived
  • IA—ISIS interarea—Integrated IS-IS interarea derived
  • L—Local
  • R—RIP derived
  • S—Static

2001:DB8:4::2/48

Indicates the IPv6 prefix of the remote network.

[20/0]

The first number in brackets is the administrative distance of the information source; the second number is the metric for the route.

via FE80::A8BB:CCFF:FE02:8B00

Specifies the address of the next device to the remote network.

When the ipv6-address or ipv6-prefix/prefix-length argument is specified, only route information for that address or network is displayed. The following is sample output from the show ipv6 route command when IPv6 prefix 2001:DB8::/35 is specified. The fields in the display are self-explanatory.

Device# show ipv6 route 2001:DB8::/35

IPv6 Routing Table - 261 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
B 2001:DB8::/35 [20/3]
  via FE80::60:5C59:9E00:16, Tunnel1

When you specify a protocol, only routes for that particular routing protocol are shown. The following is sample output from the show ipv6 route bgp command. The fields in the display are self-explanatory.

Device# show ipv6 route bgp

IPv6 Routing Table - 9 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
B   2001:DB8:4::4/64 [20/0]
     via FE80::A8BB:CCFF:FE02:8B00, Serial6/0

The following is sample output from the show ipv6 route local command. The fields in the display are self-explanatory.

Device# show ipv6 route local

IPv6 Routing Table - 9 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
L   2001:DB8:4::2/128 [0/0]
     via ::, Ethernet1/0
LC  2001:DB8:4::1/128 [0/0]
     via ::, Loopback0
L   2001:DB8:4::3/128 [0/0]
     via ::, Serial6/0
L   FE80::/10 [0/0]
     via ::, Null0
L   FF00::/8 [0/0]
     via ::, Null0

The following is sample output from the show ipv6 route command when the 6PE multipath feature is enabled. The fields in the display are self-explanatory.

Device# show ipv6 route

IPv6 Routing Table - default - 19 entries
Codes:C - Connected, L - Local, S - Static, R - RIP, B - BGP
       U - Per-user Static route
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
       O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
.
.
.
B   2001:DB8::/64 [200/0]
     via ::FFFF:172.16.0.1
     via ::FFFF:172.30.30.1

Related Commands

Command

Description

ipv6 route

Establishes a static IPv6 route.

show ipv6 interface

Displays IPv6 interface information.

show ipv6 route summary

Displays the current contents of the IPv6 routing table in summary format.

show ipv6 tunnel

Displays IPv6 tunnel information.

show ipv6 route shortcut

To display the IPv6 routes that contain shortcuts, use the show ipv6 route shortcutcommand in privileged EXEC mode.

show ipv6 route shortcut

Syntax Description

This command has no arguments or keywords.

Command Default

IPv6 information about shortcuts for all active routing tables is displayed.

Command Modes


Privileged EXEC (#)

Command History

Release

Modification

15.1(2)S

This command was introduced.

Usage Guidelines

The show ipv6 route shortcut command displays only the routes that have overriding shortcut paths.

Examples

The following is sample output from the show ipv6 route shortcutcommand:

Router# show ipv6 route shortcut 
IPv6 Routing Table - default - 7 entries 
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route 
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP 
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea 
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO 
       ND - Neighbor Discovery, l - LISP 
       O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 
       ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 
S 7000:1::/64 [1/0]
    via 4000:1:1::1, Ethernet1/1 [Shortcut] 
    via 5000:1:1::1, Ethernet1/1 [Shortcut] 
    via Ethernet1/1, directly connected 
S 8000:1:1::/64 [1/0] 
    via 6000:1:1::1, Ethernet0/1 [Shortcut] 
    via Ethernet0/0, directly connected 

The table below describes the significant fields shown in the display.

Table 8 show ipv6 route shortcut Field Descriptions

Field

Description

Codes:

Indicates the protocol that derived the route. Values are as follows:

  • C--Connected
  • L--Local
  • S--Static
  • R--RIP derived
  • B--BGP derived
  • I1--ISIS L1--Integrated IS-IS Level 1 derived
  • I2--ISIS L2--Integrated IS-IS Level 2 derived
  • IA--ISIS interarea--Integrated IS-IS interarea derived

S 7000:1::/64 [1/0]

Indicates paths that may be shortcut paths.

via 4000:1:1::1, Ethernet1/1

Indicates a path that may be a shortcut path.

via 5000:1:1::1, Ethernet1/1 [Shortcut]

Indicates a path that may be a shortcut path.

via Ethernet1/1, directly connected

Shows routes connected to the router directly.

Related Commands

Command

Description

ipv6 route

Establishes a static IPv6 route.

show ipv6 interface

Displays IPv6 interface information.

show ipv6 route summary

Displays the current contents of the IPv6 routing table in summary format.

show ipv6 tunnel

Displays IPv6 tunnel information.

show ipv6 route summary

To display the current contents of the IPv6 routing table in summary format, use the show ipv6 route summarycommand in user EXEC or privileged EXEC mode.

show ipv6 route summary

Syntax Description

This command has no arguments or keywords.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.2(2)T

This command was introduced.

12.0(21)ST

This command was integrated into Cisco IOS Release 12.0(21)ST.

12.0(22)S

This command was integrated into Cisco IOS Release 12.0(22)S.

12.2(14)S

This command was integrated into Cisco IOS Release 12.2(14)S.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Examples

The following is sample output from the show ipv6 route summary command:

Router# show ipv6 route summary
IPv6 Routing Table Summary - 257 entries
  37 local, 35 connected, 25 static, 0 RIP, 160 BGP
  Number of prefixes:
    /16: 1, /24: 46, /28: 10, /32: 5, /35: 25, /40: 1, /48: 63, /64: 19
    /96: 15, /112: 1, /126: 31, /127: 4, /128: 36 

The table below describes the significant fields shown in the display.

Table 9 show ipv6 route summary Field Descriptions

Field

Description

entries

Number of entries in the IPv6 routing table.

Route source

Number of routes that are present in the routing table for each route source, which can be local routes, connected routes, static routes, a routing protocol, prefix and address or name, and longer prefixes and address or name.

Routing protocols can include RIP, IS-IS, OSPF, and BGP.

Other route sources can be connected, local, static, or a specific interface.

Number of prefixes:

Number of routing table entries for given prefix length.

Related Commands

Command

Description

show ipv6 route

Displays the current contents of the IPv6 routing table.

show ipv6 route vrf

To display IPv6 routing table information associated with a VPN routing and forwarding (VRF) instance, use the show ipv6 route vrf command in user EXEC or privileged EXEC mode.

show ipv6 route vrf { vrf-name | vrf-number } [ tag { tag-value | tag-value-dotted-decimal [ mask ] } ]

Syntax Description

vrf-name

Name assigned to the VRF.

vrf-number

Hexadecimal number assigned to the VRF.

tag

(Optional) Displays information about route tags in the VRF table.

tag-value

(Optional) Displays route tag value in plain decimals.

tag-value-dotted-decimal

(Optional) Displays route tag values in dotted decimals.

mask

(Optional) Route tag wildcard mask.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(33)SRB

This command was introduced.

12.2(33)SB

This command was integrated into Cisco IOS Release 12.2(33)SB.

12.2(33)SXI

This command was integrated into Cisco IOS Release 12.2(33)SXI.

15.2(2)S

This command was integrated into Cisco IOS Release 15.2(2)S. The tag keyword and the tag-value, tag-value-dotted-decimal, and mask arguments were added to enable the display of route tags as plain decimals or dotted decimals in the command output.

Cisco IOS XE Release 3.6S

This command was integrated into Cisco IOS XE Release 3.6S. The tag keyword and the tag-value, tag-value-dotted-decimal, and mask arguments were added to enable the display of route tags as plain decimals or dotted decimals in the command output.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.2(2)SNI

This command was implemented on the Cisco ASR 901 Series Aggregation Services Routers.

Examples

The following sample output from the show ipv6 route vrf command displays information about the IPv6 routing table associated with VRF1:

Device# show ipv6 route vrf VRF1

IPv6 Routing Table VRF1 - 6 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       U - Per-user Static route
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
C   2001:DB8:4::2/48 [0/0]
     via ::, FastEthernet0/0
L   2001:DB8:4::3/48 [0/0]
     via ::, FastEthernet0/0
B   2001:DB8:4::4/48 [200/0]
     via ::FFFF:192.168.1.4,
B   2001:DB8:4::5/48 [20/1]
     via 2001:8::1,
C   2001:DB8:4::6/48 [0/0]
     via ::, Loopback1
L   2001:DB8:4::7/48 [0/0]
     via ::, Loopback1

The following sample output from the show ip route vrf vrf-name tag command displays information about tagged IPv6 routes in vrf1:

Device# show ipv6 route vrf vrf1 tag 0.0.0.6

IPv6 Routing Table - vrf1 - 2 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, R - RIP, H - NHRP, I1 - ISIS L1
       I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP
       EX - EIGRP external, ND - ND Default, NDp - ND Prefix, DCE - Destination
       NDr - Redirect, l - LISP
       O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
       ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
Routing entry for 2001::/32
  Known via "static", distance 1, metric 0
  Tag 0.0.0.6
  Route count is 1/1, share count 0
  Routing paths:
    directly connected via Null0
      Last updated 00:00:23 ago

The table below describes the significant fields shown in the displays.

Table 10 show ipv6 route vrf Field Descriptions

Field

Description

Codes

Indicates the protocol that derived the route. It can be one of the following values:

  • B—BGP derived
  • C—Connected
  • D—Enhanced Interior Gateway Routing Protocol (EIGRP)
  • EX—EIGRP external
  • H—NHRP
  • I—IS-IS derived
  • L—Local
  • O—Open Shortest Path First (OSPF) derived
  • P—Periodic downloaded static route
  • R—Routing Information Protocol (RIP) derived
  • S—Static
  • U—Per-user static route

via ::, FastEthernet0/0

Indicates how the route was derived.

Tag

Identifies the tag associated with the remote network.

show ipv6 routers

To display IPv6 router advertisement (RA) information received from on-link devices, use the show ipv6 routers command in user EXEC or privileged EXEC mode.

show ipv6 routers [ interface-type interface-number ] [ conflicts] [ vrf vrf-name] [ detail]

Syntax Description

interface -type

(Optional) Specifies the Interface type.

interface -number

(Optional) Specifies the Interface number.

conflicts

(Optional) Displays RAs that differ from the RAs configured for a specified interface.

vrf vrf-name

(Optional) Specifies a virtual routing and forwarding (VRF) configuration.

detail

(Optional) Provides detail about the eligibility of the neighbor for election as the default device.

Command Default

When an interface is not specified, on-link RA information is displayed for all interface types. (The term onl-ink refers to a locally reachable address on the link.)

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

12.2(2)T

This command was introduced.

12.0(21)ST

This command was integrated into Cisco IOS Release 12.0(21)ST.

12.0(22)S

This command was integrated into Cisco IOS Release 12.0(22)S.

12.2(14)S

This command was integrated into Cisco IOS Release 12.2(14)S.

12.4(2)T

Command output was updated to show the state of the default router preference (DRP) preference value as advertised by other devices.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

15.0(2)SE

The vrf vrf-name keyword and argument pair and the detail keyword were added.

Usage Guidelines

Devices that advertise parameters that differ from the RA parameters configured for the interface on which the RAs are received are marked as conflicting.

Examples

The following is sample output from the show ipv6 routers command when entered without an IPv6 interface type and number:

Device# show ipv6 routers

Device FE80::83B3:60A4 on Tunnel5, last update 3 min
  Hops 0, Lifetime 6000 sec, AddrFlag=0, OtherFlag=0
  Reachable time 0 msec, Retransmit time 0 msec
  Prefix 3FFE:C00:8007::800:207C:4E37/96 autoconfig
    Valid lifetime -1, preferred lifetime -1
Device FE80::290:27FF:FE8C:B709 on Tunnel57, last update 0 min
  Hops 64, Lifetime 1800 sec, AddrFlag=0, OtherFlag=0
  Reachable time 0 msec, Retransmit time 0 msec 

The following sample output shows a single neighboring device that is advertising a high default device preference and is indicating that it is functioning as a Mobile IPv6 home agent on this link.

Device# show ipv6 routers

IPV6 ND Routers (table: default)
  Device FE80::100 on Ethernet0/0, last update 0 min
  Hops 64, Lifetime 50 sec, AddrFlag=0, OtherFlag=0, MTU=1500
  HomeAgentFlag=1, Preference=High
  Reachable time 0 msec, Retransmit time 0 msec
  Prefix 2001::100/64 onlink autoconfig
    Valid lifetime 2592000, preferred lifetime 604800

The following table describes the significant fields shown in the displays.

Table 11 show ipv6 routers Field Descriptions

Field

Description

Hops

The configured hop limit value for the RA.

Lifetime

The configured lifetime value for the RA. A value of 0 indicates that the device is not a default device. A value other than 0 indicates that the device is a default device.

AddrFlag

If the value is 0, the RA received from the device indicates that addresses are not configured using the stateful autoconfiguration mechanism. If the value is 1, the addresses are configured using this mechanism.

OtherFlag

If the value is 0, the RA received from the device indicates that information other than addresses is not obtained using the stateful autoconfiguration mechanism. If the value is 1, other information is obtained using this mechanism. (The value of OtherFlag can be 1 only if the value of AddrFlag is 1.)

MTU

The maximum transmission unit (MTU).

HomeAgentFlag=1

The value can be either 0 or 1. A value of 1 indicates that the device from which the RA was received is functioning as a mobile IPv6 home agent on this link, and a value of 0 indicates it is not functioning as a mobile IPv6 home agent on this link.

Preference=High

The DRP value, which can be high, medium, or low.

Retransmit time

The configured RetransTimer value. The time value to be used on this link for neighbor solicitation transmissions, which are used in address resolution and neighbor unreachability detection. A value of 0 means the time value is not specified by the advertising device.

Prefix

A prefix advertised by the device. Also indicates if on-link or autoconfig bits were set in the RA message.

Valid lifetime

The length of time (in seconds) relative to the time the advertisement is sent that the prefix is valid for the purpose of on-link determination. A value of -1 (all ones, 0xffffffff) represents infinity.

preferred lifetime

The length of time (in seconds) relative to the time the advertisements is sent that addresses generated from the prefix via address autoconfiguration remain valid. A value of -1 (all ones, 0xffffffff) represents infinity.

When the interface-type and interface-number arguments are specified, RA details about that specific interface are displayed. The following is sample output from the show ipv6 routers command when entered with an interface type and number:

Device# show ipv6 routers tunnel 5

Device FE80::83B3:60A4 on Tunnel5, last update 5 min
  Hops 0, Lifetime 6000 sec, AddrFlag=0, OtherFlag=0
  Reachable time 0 msec, Retransmit time 0 msec
  Prefix 3FFE:C00:8007::800:207C:4E37/96 autoconfig
    Valid lifetime -1, preferred lifetime -1 

Entering the conflicts keyword with the show ipv6 routers command displays information for devices that are advertising parameters different from the parameters configured for the interface on which the advertisements are being received, as the following sample output shows:

Device# show ipv6 routers conflicts

Device FE80::203:FDFF:FE34:7039 on Ethernet1, last update 1 min, CONFLICT
   Hops 64, Lifetime 1800 sec, AddrFlag=0, OtherFlag=0
   Reachable time 0 msec, Retransmit time 0 msec
   Prefix 2003::/64 onlink autoconfig
     Valid lifetime -1, preferred lifetime -1
Device FE80::201:42FF:FECA:A5C on Ethernet1, last update 0 min, CONFLICT
   Hops 64, Lifetime 1800 sec, AddrFlag=0, OtherFlag=0
   Reachable time 0 msec, Retransmit time 0 msec
   Prefix 2001::/64 onlink autoconfig
     Valid lifetime -1, preferred lifetime -1

Use of the detail keyword provides information about the preference rank of the device, its eligibility for election as default device, and whether the device has been elected:

Device# show ipv6 routers detail

Device FE80::A8BB:CCFF:FE00:5B00 on Ethernet0/0, last update 0 min
  Rank 0x811 (elegible), Default Router
  Hops 64, Lifetime 1800 sec, AddrFlag=0, OtherFlag=0, MTU=1500
  HomeAgentFlag=0, Preference=Medium, trustlevel = 0
  Reachable time 0 (unspecified), Retransmit time 0 (unspecified)
  Prefix 2001::/64 onlink autoconfig
    Valid lifetime 2592000, preferred lifetime 604800

show ipv6 rpf

To check Reverse Path Forwarding (RPF) information for a given unicast host address and prefix, use the show ipv6 rpf command in user EXEC or privileged EXEC mode.

show ipv6 rpf { source-vrf [access-list] | vrf receiver-vrf { source-vrf [access-list] | select } }

Syntax Description

source-vrf

Name or address of the virtual routing and forwarding (VRF) on which lookups are to be performed.

receiver-vrf

Name or address of the VRF in which the lookups originate.

access-list

Name or address of access control list (ACL) to be applied to the group-based VRF selection policy.

vrf

Displays information about the VRF instance.

select

Displays group-to-VRF mapping information.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(26)S

This command was introduced.

12.3(4)T

This command was integrated into Cisco IOS Release 12.3(4)T.

12.2(25)S

This command was integrated into Cisco IOS Release 12.2(25)S.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Cisco IOS XE Release 2.1

This command was introduced on Cisco ASR 1000 Series Routers.

15.1(4)M

The vrf receiver-vrf keyword and argument were added.

15.3(1)S

This command was integrated into Cisco IOS Release 15.3(1)S.

15.4(1)S

This command was implemented on the Cisco ASR 901 series routers.

Usage Guidelines

The show ipv6 rpfcommand displays information about how IPv6 multicast routing performs Reverse Path Forwarding (RPF). Because the router can find RPF information from multiple routing tables (for example, unicast Routing Information Base [RIB], multiprotocol Border Gateway Protocol [BGP] routing table, or static mroutes), the show ipv6 rpfcommand to display the source from which the information is retrieved.

Examples

The following example displays RPF information for the unicast host with the IPv6 address of 2001::1:1:2:

Router# show ipv6 rpf 2001::1:1:2
RPF information for 2001::1:1:2
  RPF interface:Ethernet3/2
  RPF neighbor:FE80::40:1:3
  RPF route/mask:20::/64
  RPF type:Unicast
  RPF recursion count:0
  Metric preference:110
  Metric:30

The table below describes the significant fields shown in the display.

Table 12 show ipv6 rpf Field Descriptions

Field

Description

RPF information for 2001::1:1:2

Source address that this information concerns.

RPF interface:Ethernet3/2

For the given source, the interface from which the router expects to get packets.

RPF neighbor:FE80::40:1:3

For the given source, the neighbor from which the router expects to get packets.

RPF route/mask:20::/64

Route number and mask that matched against this source.

RPF type:Unicast

Routing table from which this route was obtained, either unicast, multiprotocol BGP, or static mroutes.

RPF recursion count

Indicates the number of times the route is recursively resolved.

Metric preference:110

The preference value used for selecting the unicast routing metric to the Route Processor (RP) announced by the designated forwarder (DF).

Metric:30

Unicast routing metric to the RP announced by the DF.

show ipv6 snooping capture-policy

To display message capture policies, use the show ipv6 snooping capture-policy command in user EXEC or privileged EXEC mode.

show ipv6 snooping capture-policy [ interface type number ]

Syntax Description

interface type number

(Optional) Displays first-hop message types on the specified interface type and number.

Command Modes


User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(50)SY

This command was introduced.

15.0(2)SE

This command was integrated into Cisco IOS Release 15.0(2)SE.

15.3(1)S

This command was integrated into Cisco IOS Release 15.3(1)S.

Cisco IOS XE Release 3.2SE

This command was integrated into Cisco IOS XE Release 3.2SE.

Cisco IOS XE Release 3.9S

This command was integrated into Cisco IOS XE Release 3.9S.

Usage Guidelines

The show ipv6 snooping capture-policy command displays IPv6 first-hop message capture policies.

Examples

The following example shows show ipv6 snooping capture-policy command output on the Ethernet 0/0 interface, on which the IPv6 Neighbor Discovery Protocol (NDP) Inspection and Router Advertisement (RA) Guard features are configured:

Router# show ipv6 snooping capture-policy

Hardware policy registered on Et0/0
Protocol  Protocol value  Message  Value  Action  Feature
ICMP      58              RS       85     punt    RA Guard
                                          punt    ND Inspection
ICMP      58              RA       86     drop    RA guard
                                          punt    ND Inspection
ICMP      58              NS       87     punt    ND Inspection
ICMP      58              NA       88     punt    ND Inspection
ICMP      58              REDIR    89     drop    RA Guard
                                          punt    ND Inspection

The table below describes the significant fields shown in the display.

Table 13 show ipv6 snooping capture-policy Field Descriptions

Field

Description

Hardware policy registered on Fa4/11

A hardware policy contains a programmatic access list (ACL), with a list of access control entries (ACEs).

Protocol

The protocol whose packets are being inspected.

Message

The type of message being inspected.

Action

Action to be taken on the packet.

Feature

The inspection feature for this information.

show ipv6 snooping counters

To display information about the packets counted by the interface counter, use the show ipv6 snooping counterscommand in user EXEC or privileged EXEC mode.

show ipv6 snooping counters { interface type number | vlan vlan-id }

Syntax Description

interface type number

Displays first-hop packets that match the specified interface type and number.

vlan vlan-id

Displays first hop packets that match the specified VLAN ID.

Command Modes


User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(50)SY

This command was introduced.

15.0(2)SE

This command was integrated into Cisco IOS Release 15.0(2)SE.

15.3(1)S

This command was integrated into Cisco IOS Release 15.3(1)S.

Cisco IOS XE Release 3.2SE

This command was integrated into Cisco IOS XE Release 3.2SE.

Cisco IOS XE Release 3.9S

This command was integrated into Cisco IOS XE Release 3.9S.

Usage Guidelines

The show ipv6 snooping counters command displays packets handled by the switch that are being counted in interface counters. The switch counts packets captured per interface and records whether the packet was received, sent, or dropped. If a packet is dropped, the reason for the drop and the feature that caused the drop are both also provided.

Examples

The following examples shows information about packets counted on Fast Ethernet interface 4/12:

Router# show ipv6 snooping counters interface Fa4/12
Received messages on Fa4/12:
Protocol        Protocol message
ICMPv6          RS      RA      NS      NA      REDIR   CPS     CPA     
                0       4256    0       0       0       0       0       
Bridged messages from Fa4/12:
Protocol        Protocol message
ICMPv6          RS      RA      NS      NA      REDIR   CPS     CPA     
                0       4240    0       0       0       0       0       
Dropped messages on Fa4/12:
Feature/Message RS      RA      NS      NA      REDIR   CPS     CPA     
RA guard        0       16      0       0       0       0       0       
Dropped reasons on Fa4/12:
RA guard         16   RA drop - reason:RA/REDIR received on un-authorized port

The table below describes the significant fields shown in the display.

Table 14 show ipv6 snooping counters Field Descriptions

Field

Description

Received messages on:

The messages received on an interface.

Protocol

The protocol for which messages are being counted.

Protocol message

The type of protocol messages being counted.

Bridged messages from:

Bridged messages from the interface.

Dropped messages on:

The messages dropped on the interface.

Feature/message

The feature that caused the drop, and the type and number of messages dropped.

RA drop - reason:

The reason that these messages were dropped.

show ipv6 snooping features

To display information about about snooping features configured on the router, use the show ipv6 snooping features command in user EXEC or privileged EXEC mode.

show ipv6 snooping features

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(50)SY

This command was introduced.

15.0(2)SE

This command was integrated into Cisco IOS Release 15.0(2)SE.

15.3(1)S

This command was integrated into Cisco IOS Release 15.3(1)S.

Cisco IOS XE Release 3.9S

This command was integrated into Cisco IOS XE Release 3.9S.

Usage Guidelines

The show ipv6 snooping features command displays the first-hop features that are configured on the router.

Examples

The following example shows that both IPv6 NDP inspection and IPv6 RA guard are configured on the router:

Router# show ipv6 snooping features

Feature name   priority state
RA guard          100   READY
NDP inspection     20   READY

The table below describes the significant fields shown in the display.

Table 15 show ipv6 snooping features Field Descriptions

Field

Description

Feature name

The names of the IPv6 global policy features configured on the router.

priority

The priority of the specified feature.

state

The state of the specified feature.

show ipv6 snooping policies

To display information about the configured policies and the interfaces to which they are attached, use the show ipv6 snooping policies command in user EXEC or privileged EXEC mode.

show ipv6 snooping policies { interface type number | vlan vlan-id }

Syntax Description

interface type number

Displays policies that match the specified interface type and number.

vlan vlan-id

Displays first-hop packets that match the specified VLAN ID.

Command Modes


User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(50)SY

This command was introduced.

15.0(2)SE

This command was integrated into Cisco IOS Release 15.0(2)SE.

Cisco IOS XE Release 3.9S

This command was integrated into Cisco IOS XE Release 3.9S.

Usage Guidelines

The show ipv6 snooping policies command displays all policies that are configured and lists the interfaces to which they are attached.

Examples

The following example shows information about all policies configured:

Device# show ipv6 snooping policies

NDP inspection policies configured: 
Policy      Interface    Vlan 
------      ---------    ---- 
trusted      Et0/0        all 
             Et1/0        all 
untrusted    Et2/0        all 
RA guard policies configured: 
Policy      Interface    Vlan 
------      ---------    ---- 
host         Et0/0        all 
             Et1/0        all 
router       Et2/0        all

The table below describes the significant fields shown in the display.

Table 16 show ipv6 snooping policies Field Descriptions

Field

Description

NDP inspection policies configured:

Description of the policies configured for a specific feature.

Policy

Whether the policy is trusted or untrusted.

Interface

The interface to which a policy is attached.

show ipv6 source-guard policy

To display the IPv6 source-guard policy configuration, use the show ipv6 source-guard policy command in user EXEC or privileged EXEC mode.

show ipv6 source-guard policy [ source-guard-policy]

Syntax Description

source-guard-policy

User-defined name of the snooping policy. The policy name can be a symbolic string (such as Engineering) or an integer (such as 0).

Command Modes


User EXEC (>)


Privileged EXEC (#)

Command History

Release

Modification

15.0(2)SE

This command was introduced.

15.3(1)S

This command was integrated into Cisco Release 15.3(1)S.

Cisco IOS XE Release 3.9S

This command was integrated into Cisco IOS XE Release 3.9S.

Usage Guidelines

The show ipv6 source-guard policy command displays the IPv6 source-guard policy configuration, as well as all the interfaces on which the policy is applied. The command also displays IPv6 prefix guard information if the IPv6 prefix guard feature is enabled on the device.

Examples

Device# show ipv6 source-guard policy policy1

Policy policy1 configuration: 
data-glean
prefix-guard
address-guard

Policy policy1 is applied on the following targets: 
Target           Type  Policy               Feature        Target range
Et0/0            PORT   policy1             source-guard   vlan all
vlan 100         VLAN   policy1             source-guard   vlan all

Related Commands

Command

Description

ipv6 source-guard attach-policy

Applies IPv6 source guard on an interface.

ipv6 source-guard policy

Defines an IPv6 source-guard policy name and enters source-guard policy configuration mode.

show ipv6 spd

To display the IPv6 Selective Packet Discard (SPD) configuration, use the show ipv6 spdcommand in privileged EXEC mode.

show ipv6 spd

Syntax Description

This command has no arguments or keywords.

Command Modes


Privileged EXEC (#)

Command History

Release

Modification

12.2(33)SXH

This command was introduced.

12.2(33)SRC

This command was integrated into Cisco IOS Release 12.2(33)SRC.

Cisco IOS XE Release 2.6

This command was integrated into Cisco IOS XE Release 2.6.

15.1(3)T

This command was integrated into Cisco IOS Release 15.1(3)T.

Usage Guidelines

Use the show ipv6 spd command to display the SPD configuration, which may provide useful troubleshooting information.

Examples

The following is sample output from the show ipv6 spd command:

Router# show ipv6 spd
Current mode: normal
Queue max threshold: 74, Headroom: 100, Extended Headroom: 10
IPv6 packet queue: 0

The table below describes the significant fields shown in the display.

Table 17 show ipv6 spd Field Description

Field

Description

Current mode: normal

The current SPD state or mode.

Queue max threshold: 74

The process input queue maximum.

Related Commands

Command

Description

ipv6 spd queue max-threshold

Configures the maximum number of packets in the SPD process input queue.

show ipv6 static

To display the current contents of the IPv6 routing table, use the show ipv6 static command in user EXEC or privileged EXEC mode.

show ipv6 static [ ipv6-address | ipv6-prefix /prefix-length ] [ interface type number | recursive ] [detail]

Syntax Description

ipv6-address

(Optional) Provides routing information for a specific IPv6 address.

This argument must be in the form documented in RFC 2373 where the address is specified in hexadecimal using 16-bit values between colons.

ipv6-prefix

(Optional) Provides routing information for a specific IPv6 network.

This argument must be in the form documented in RFC 2373 where the address is specified in hexadecimal using 16-bit values between colons.

/prefix-length

(Optional) The length of the IPv6 prefix. A decimal value that indicates how many of the high-order contiguous bits of the address comprise the prefix (the network portion of the address). A slash mark must precede the decimal value.

interface

(Optional) Name of an interface.

type

(Optional, but required if the interface keyword is used) Interface type. For a list of supported interface types, use the question mark (?) online help function.

number

(Optional, but required if the interface keyword is used) Interface number. For specific numbering syntax for supported interface types, use the question mark (?) online help function.

recursive

(Optional) Allows the display of recursive static routes only.

detail

(Optional) Specifies the following additional information:

  • For valid recursive routes, the output path set and maximum resolution depth.
  • For invalid recursive routes, the reason why the route is not valid.
  • For invalid direct or fully specified routes, the reason why the route is not valid.

Command Default

All IPv6 routing information for all active routing tables is displayed.

Command Modes

User EXEC Privileged EXEC

Command History

Release

Modification

12.3(4)T

This command was introduced.

12.2(25)S

This command was integrated into Cisco IOS Release 12.2(25)S.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Cisco IOS XE Release 2.1.0

This command was modified. It was integrated into Cisco IOS XE Release 2.1.0.

15.1(2)T

This command was modified. Support for IPv6 was added to Cisco IOS Release 15.1(2)T.

15.1(1)SG

This command was integrated into Cisco IOS Release 15.1(1)SG.

Usage Guidelines

The show ipv6 static command provides output similar to the show ip route command, except that it is IPv6-specific.

When the ipv6-address or ipv6-prefix/prefix-length argument is specified, a longest match lookup is performed from the routing table and only route information for that address or network is displayed. Only the information matching the criteria specified in the command syntax is displayed. For example, when the type number arguments are specified, only the specified interface-specific routes are displayed.

Examples

Examples

When no options specified in the command, those routes installed in the IPv6 Routing Information Base (RIB) are marked with an asterisk, as shown in the following example:

Router# show ipv6 static
 
IPv6 Static routes
Code: * - installed in RIB
* 3000::/16, interface Ethernet1/0, distance 1
* 4000::/16, via nexthop 2001:1::1, distance 1
  5000::/16, interface Ethernet3/0, distance 1
* 5555::/16, via nexthop 4000::1, distance 1
  5555::/16, via nexthop 9999::1, distance 1
* 5555::/16, interface Ethernet2/0, distance 1
* 6000::/16, via nexthop 2007::1, interface Ethernet1/0, distance 1

The table below describes the significant fields shown in the display.

Table 18 show ipv6 static Field Descriptions

Field

Description

via nexthop

Specifies the address of the next router in the path to the remote network.

distance 1

Indicates the administrative distance to the specified route.

Examples

When the ipv6-address or ipv6-prefix/prefix-length argument is specified, only information about static routes for that address or network is displayed. The following is sample output from the show ipv6 route command when entered with the IPv6 prefix 2001:200::/35:

Router# show ipv6 static 2001:200::/35
 
IPv6 Static routes
Code: * - installed in RIB
* 2001:200::/35, via nexthop 4000::1, distance 1
  2001:200::/35, via nexthop 9999::1, distance 1
* 2001:200::/35, interface Ethernet2/0, distance 1

Examples

When an interface is supplied, only those static routes with the specified interface as the outgoing interface are displayed. The interface keyword may be used with or without the IPv6 address and prefix specified in the command statement.

Router# show ipv6 static interface ethernet 3/0
 
IPv6 Static routes Code: * - installed in RIB 5000::/16, interface Ethernet3/0, distance 1

Examples

When the recursive keyword is specified, only recursive static routes are displayed:

Router# show ipv6 static recursive
 
IPv6 Static routes Code: * - installed in RIB * 4000::/16, via nexthop 2001:1::1, distance 1 * 5555::/16, via nexthop 4000::1, distance 1 5555::/16, via nexthop 9999::1, distance 1

Examples

When the detail keyword is specified, the following additional information is displayed:

  • For valid recursive routes, the output path set and maximum resolution depth.
  • For invalid recursive routes, the reason why the route is not valid.
  • For invalid direct or fully specified routes, the reason why the route is not valid.
Router# show ipv6 static detail
 
IPv6 Static routes
Code: * - installed in RIB
* 3000::/16, interface Ethernet1/0, distance 1
* 4000::/16, via nexthop 2001:1::1, distance 1
     Resolves to 1 paths (max depth 1)
     via Ethernet1/0
  5000::/16, interface Ethernet3/0, distance 1
     Interface is down
* 5555::/16, via nexthop 4000::1, distance 1
     Resolves to 1 paths (max depth 2)
     via Ethernet1/0
  5555::/16, via nexthop 9999::1, distance 1
     Route does not fully resolve
* 5555::/16, interface Ethernet2/0, distance 1
* 6000::/16, via nexthop 2007::1, interface Ethernet1/0, distance 1

Related Commands

Command

Description

ipv6 route

Establishes a static IPv6 route.

show ip route

Displays the current state of the routing table.

show ipv6 interface

Displays IPv6 interface information.

show ipv6 route summary

Displays the current contents of the IPv6 routing table in summary format.

show ipv6 tunnel

Displays IPv6 tunnel information.

show ipv6 traffic

To display statistics about IPv6 traffic, use the show ipv6 trafficcommand in user EXEC or privileged EXEC mode.

show ipv6 traffic [ interface [ interface type number ] ]

Syntax Description

interface

(Optional) All interfaces. IPv6 forwarding statistics for all interfaces on which IPv6 forwarding statistics are being kept will be displayed.

interface type number

(Optional) Specified interface. Interface statistics that have occurred since the statistics were last cleared on the specific interface are displayed.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.2(2)T

This command was introduced.

12.0(21)ST

This command was integrated into Cisco IOS Release 12.0(21)ST.

12.0(22)S

This command was integrated into Cisco IOS Release 12.0(22)S, and output fields were added.

12.2(13)T

The modification to add output fields was integrated into this release.

12.2(14)S

This command was integrated into Cisco IOS Release 12.2(14)S.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

12.2(33)SRC

The interface argument and interface keyword were added.

12.2(33)SB

This command was integrated into Cisco IOS Release 12.2(33)SB.

Cisco IOS XE Release 2.1

This command was introduced on Cisco ASR 1000 Series devices.

15.2(2)SNG

This command was implemented on the Cisco ASR 901 Series Aggregation Services devices.

15.3(1)S

This command was integrated into Cisco IOS Release 15.3(1)S.

Cisco IOS XE Release 3.2SE

This command was integrated into Cisco IOS XE Release 3.2SE.

Usage Guidelines

The show ipv6 trafficcommand provides output similar to the show ip trafficcommand, except that it is IPv6-specific.

Examples

The following is sample output from the show ipv6 trafficcommand:

Device# show ipv6 traffic
IPv6 statistics:
  Rcvd:  0 total, 0 local destination
         0 source-routed, 0 truncated
         0 format errors, 0 hop count exceeded
         0 bad header, 0 unknown option, 0 bad source
         0 unknown protocol, 0 not a device
         0 fragments, 0 total reassembled
         0 reassembly timeouts, 0 reassembly failures
         0 unicast RPF drop, 0 suppressed RPF drop
  Sent:  0 generated, 0 forwarded
         0 fragmented into 0 fragments, 0 failed
         0 encapsulation failed, 0 no route, 0 too big
  Mcast: 0 received, 0 sent
ICMP statistics:
  Rcvd: 0 input, 0 checksum errors, 0 too short
        0 unknown info type, 0 unknown error type
        unreach: 0 routing, 0 admin, 0 neighbor, 0 address, 0 port
        parameter: 0 error, 0 header, 0 option
        0 hopcount expired, 0 reassembly timeout,0 too big
        0 echo request, 0 echo reply
        0 group query, 0 group report, 0 group reduce
        0 device solicit, 0 device advert, 0 redirects

The following is sample output for the show ipv6 interface command without IPv6 CEF running:

Device# show ipv6 interface ethernet 0/1/1
Ethernet0/1/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::203:FDFF:FE49:9
  Description: sat-2900a f0/12
  Global unicast address(es):
    7::7, subnet is 7::/32
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:7
    FF02::1:FF49:9
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  Input features: RPF
  Unicast RPF access-list MINI
    Process Switching: 
      0 verification drops
      0 suppressed verification drops
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds

The following is sample output for the show ipv6 interface command with IPv6 CEF running:

Device# show ipv6 interface ethernet 0/1/1
Ethernet0/1/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::203:FDFF:FE49:9
  Description: sat-2900a f0/12
  Global unicast address(es):
    7::7, subnet is 7::/32
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:7
    FF02::1:FF49:9
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  Input features: RPF
  Unicast RPF access-list MINI
    Process Switching:
      0 verification drops
      0 suppressed verification drops
    CEF Switching: 
      0 verification drops 
      0 suppressed verification drops 
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds
  ND advertised reachable time is 0 milliseconds
  ND advertised retransmit interval is 0 milliseconds
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  Hosts use stateless autoconfig for addresses.

The table below describes the significant fields shown in the display.

Table 19 show ipv6 traffic Field Descriptions

Field

Description

source-routed

Number of source-routed packets.

truncated

Number of truncated packets.

format errors

Errors that can result from checks performed on header fields, the version number, and packet length.

not a device

Message sent when IPv6 unicast routing is not enabled.

0 unicast RPF drop, 0 suppressed RPF drop

Number of unicast and suppressed reverse path forwarding (RPF) drops.

failed

Number of failed fragment transmissions.

encapsulation failed

Failure that can result from an unresolved address or try-and-queue packet.

no route

Counted when the software discards a datagram it did not know how to route.

unreach

Unreachable messages received are as follows:

  • routing--Indicates no route to the destination.
  • admin--Indicates that communication with the destination is administratively prohibited.
  • neighbor--Indicates that the destination is beyond the scope of the source address. For example, the source may be a local site or the destination may not have a route back to the source.
  • address--Indicates that the address is unreachable.
  • port--Indicates that the port is unreachable.

Unicast RPF access-list MINI

Unicast RPF access-list in use.

Process Switching

Displays process RPF counts, such as verification and suppressed verification drops.

CEF Switching

Displays CEF switching counts, such as verification drops and suppressed verification drops.

show ipv6 tunnel

To display IPv6 tunnel information, use the show ipv6 tunnelcommand in user EXEC or privileged EXEC mode.

show ipv6 tunnel

Syntax Description

This command has no arguments or keywords.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.2(2)T

This command was introduced.

12.0(21)ST

This command was integrated into Cisco IOS Release 12.0(21)ST.

12.0(22)S

This command was integrated into Cisco IOS Release 12.0(22)S.

12.2(14)S

This command was integrated into Cisco IOS Release 12.2(14)S.

Command History

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Usage Guidelines

For each tunnel running IPv6, use the show ipv6 tunnel command to display the tunnel unit number, the name of the dynamic routing protocol used by the tunnel, the time of last input, the number of packets in the last input, and the description string as set by the description command.

Examples

The following is sample output from the show ipv6 tunnelcommand:

Router# show ipv6 tunnel
Tun Route  LastInp  Packets
  0 RIPng    never        0
  1   -   00:00:13    55495
  2   -      never        0
  3   -   00:00:21    14755
  4   -      never        0
  5   -   00:00:00    15840
  6   -      never        0
  7   -   00:00:18    16008
  8   -      never        0
  9   -      never        0
 10   -      never        0
 11   -   00:00:03    94801
 12   -      1d02h        2
 13   -      never        0
 14   -   00:00:08   312190
 15   -      never        0
 16   -      never        0
 17   -      never        0
 18   -   00:00:05  1034954
 19   -      never        0
 20   -   00:00:01  1171114
 21   -      never        0

The table below describes the significant fields shown in the display.

Table 20 show ipv6 tunnel Field Descriptions

Field

Description

Tun

Tunnel number.

Route

Indicates whether IPv6 RIP is enabled (RIPng) on this tunnel interface or is not enabled (-).

Last Inp

Time of last input into the tunnel.

Packets

Number of packets in this tunnel.

Description (not shown in sample output)

Description of the tunnel as entered in interface configuration mode.

show ipv6 virtual-reassembly

To display Virtual Fragment Reassembly (VFR) configuration and statistical information on a specific interface, use the show ipv6 virtual-reassembly command in privileged EXEC mode.

show ipv6 virtual-reassembly interface interface-type

Syntax Description

interface interface-type

Specifies the interface for which information is requested.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.3(7)T

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

Usage Guidelines

This command shows the configuration and statistical information of VFR on the given interface.

Examples

The following example shows a typical display produced by this command:

Router# show ipv6 virtual-reassembly
All enabled IPv6 interfaces...
GigabitEthernet0/0/0:
   IPv6 Virtual Fragment Reassembly (IPV6VFR) is ENABLED [in]
   IPv6 configured concurrent reassemblies (max-reassemblies): 64
   IPv6 configured fragments per reassembly (max-fragments): 16
   IPv6 configured reassembly timeout (timeout): 3 seconds
   IPv6 configured drop fragments: OFF
 
   IPv6 current reassembly count:0
   IPv6 current fragment count:0
   IPv6 total reassembly count:20
   IPv6 total reassembly timeout count:0 

The display is self-explanatory; it corresponds to the values used when you entered the ipv6 virtual-reassembly command.

Related Commands

Command

Description

ipv6 virtual-reassembly

Enables VFR on an interface.

show ipv6 virtual-reassembly features

To display Virtual Fragment Reassembly (VFR) information on all interfaces or on a specified interface, use the show ipv6 virtual-reassembly features command in privileged EXEC mode.

show ipv6 virtual-reassembly features [ interface interface-type ]

Syntax Description

interface interface-type

(Optional) Specifies the interface for which information is requested.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.3(7)T

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

Usage Guidelines

This command shows the configuration and statistical information of VFR on a specified interface or on all interfaces. Use the optional interface interface-type keyword and argument to specify an interface. If you enter the show ipv6 virtual-reassembly features command without the keyword and argument, information about all interfaces is displayed.

Examples

The following example displays information about all interfaces:

Router# show ipv6 virtual-reassembly features
 
GigabitEthernet0/0/0:
  IPV6 Virtual Fragment Reassembly (IPV6 VFR) Current Status is ENABLED [in]
  Features to use if IPV6 VFR is Enabled:CLI
GigabitEthernet0/0/0:
  IPV6 Virtual Fragment Reassembly (IPV6 VFR) Current Status is ENABLED [out]
  Features to use if IPV6 VFR is Enabled:CLI

The display is self-explanatory; it corresponds to the values used when you entered the ipv6 virtual-reassembly command.

Related Commands

Command

Description

ipv6 virtual-reassembly

Enables VFR on an interface.

show ipv6 virtual-reassembly

Displays VFR configuration and statistical information.

show ipv6 wccp

To display the IPv6 Web Cache Communication Protocol (WCCP) global configuration and statistics, use the show ipv6 wccp command in user EXEC or privileged EXEC mode.

show ipv6 wccp [ [all] [capabilities] [summary] [ interfaces [ cef | counts | detail ] ] [ vrf vrf-name ] [ { web-cache | service-number } [ [assignment] [clients] [counters] [detail] [service] [view] ] ] ]

Syntax Description

summary

(Optional) Displays a summary of WCCP services.

capabilities

(Optional) Displays WCCP platform capabilities information.

vrf vrf-name

(Optional) Specifies a virtual routing and forwarding (VRF) instance associated with a service group to display.

service-number

(Optional) Identification number of the web cache service group being controlled by the cache. The number can be from 0 to 254. For web caches using Cisco cache engines, the reverse proxy service is indicated by a value of 99.

interfaces

(Optional) Displays WCCP redirect interfaces.

cef

(Optional) Displays Cisco Express Forwarding interface statistics, including the number of input, output, dynamic, static, and multicast services.

counts

(Optional) Displays WCCP interface count statistics, including the number of Cisco Express Forwarding and process-switched output and input packets redirected.

detail

(Optional) Displays WCCP interface configuration statistics, including the number of input, output, dynamic, static, and multicast services.

web-cache

(Optional) Displays statistics for the web cache service.

all

(Optional) Displays statistics for all known services.

assignment

(Optional) Displays service group assignment information.

service

(Optional) Displays detailed information about a service, including the service definition and all other per-service information.

clients

(Optional) Displays detailed information about the clients of a service, including all per-client information. No per-service information is displayed.

detail

(Optional) Displays detailed information about the clients of a service, including all per-client information. No per-service information is displayed. Assignment information is also displayed.

counters

(Optional) Displays traffic counters.

Command Modes

User EXEC (>)

  Privileged EXEC (#)

Command History

Release

Modification

15.2(3)T

This command was introduced.

15.1(1)SY1

This command was integrated into Cisco IOS Release 15.1(1)SY1.

Usage Guidelines

Use the clear ipv6 wccp command to reset all WCCP counters.

Use the show ipv6 wccp service-number detail command to display information about the WCCP client timeout interval and the redirect assignment timeout interval if those intervals are not set to their default value of 10 seconds.

Use the show ipv6 wccp summary command to show the configured WCCP services and a summary of their current state.

Examples

This section contains examples and field descriptions for the following forms of this command:

  • show ipv6 wccp service-number (service mode displayed)
  • show ipv6 wccp service-number detail
  • show ipv6 wccp interfaces
  • show ipv6 wccp web-cache
  • show ipv6 wccp web-cache counters
  • show ipv6 wccp web-cache detail
  • show ipv6 wccp web-cache detail (bypass counters displayed)
  • show ipv6 wccp web-cache service
  • show ipv6 wccp summary

Examples

The following is sample output from the show ipv6 wccp service-number command:

Router# show ipv6 wccp 61

Global WCCP information:
    Router information:
        Router Identifier:                   2001:DB8:100::1

    Service Identifier: 61
        Protocol Version:                    2.01
        Number of Service Group Clients:     2
        Number of Service Group Routers:     1
        Total Packets Redirected:            0
          Process:                           0
          CEF:                               0
        Service mode:                        Open
        Service Access-list:                 -none-
        Total Packets Dropped Closed:        0
        Redirect access-list:                -none-
        Total Packets Denied Redirect:       0
        Total Packets Unassigned:            0
        Group access-list:                   -none-
        Total Messages Denied to Group:      0
        Total Authentication failures:       0
        Total GRE Bypassed Packets Received: 0
          Process:                           0
          CEF:                               0

The table below describes the significant fields shown in the display.

Table 21 show ipv6 wccp service-number Field Descriptions

Field

Description

Router information

A list of routers detected by the current router.

Protocol Version

The version of WCCP being used by the router in the service group.

Service Identifier

Indicates which service is detailed.

Number of Service Group Clients

The number of clients that are visible to the router and other clients in the service group.

Number of Service Group Routers

The number of routers in the service group.

Total Packets s/w Redirected

Total number of packets redirected by the router.

Service mode

Identifies the WCCP service mode. Options are Open or Closed.

Service Access-list

A named extended IP access list that defines the packets that will match the service.

Total Packets Dropped Closed

Total number of packets that were dropped when WCCP is configured for closed services and an intermediary device is not available to process the service.

Redirect Access-list

The name or number of the access list that determines which packets will be redirected.

Total Packets Denied Redirect

Total number of packets that were not redirected because they did not match the access list.

Total Packets Unassigned

Number of packets that were not redirected because they were not assigned to any cache engine. Packets may not be assigned during initial discovery of cache engines or when a cache is dropped from a cluster.

Group Access-list

Indicates which cache engine is allowed to connect to the router.

Total Messages Denied to Group

Indicates the number of packets denied by the group-list access list.

Total Authentication failures

The number of instances where a password did not match.

Total Bypassed Packets Received

The number of packets that have been bypassed. Process and Cisco Express Forwarding are switching paths within Cisco IOS software.

Examples

The following example displays WCCP client information and WCCP router statistics that include the type of services:

Router# show ipv6 wccp 61 detail

WCCP Client information:
        WCCP Client ID:          2001:DB8:1::11
        Protocol Version:        2.01
        State:                   Usable
        Redirection:             L2
        Packet Return:           L2
        Assignment:              MASK
        Connect Time:            1w0d
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0
        Mask Allotment:          32 of 64 (50.00%)
        Assigned masks/values:   1/32

        Mask  SrcAddr    DstAddr    SrcPort DstPort
        ----  -------    -------    ------- -------
        0000: ::3        ::F        0x0000  0x0000

        Value SrcAddr    DstAddr    SrcPort DstPort
        ----- -------    -------    ------- -------
        0000: ::         ::         0x0000  0x0000
        0001: ::         ::2        0x0000  0x0000
        0002: ::         ::4        0x0000  0x0000
        0003: ::         ::6        0x0000  0x0000
        0004: ::         ::8        0x0000  0x0000
        0005: ::         ::A        0x0000  0x0000
        0006: ::         ::C        0x0000  0x0000
        0007: ::         ::E        0x0000  0x0000
        0008: ::1        ::         0x0000  0x0000
        0009: ::1        ::2        0x0000  0x0000
        0010: ::1        ::4        0x0000  0x0000
        0011: ::1        ::6        0x0000  0x0000
        0012: ::1        ::8        0x0000  0x0000
        0013: ::1        ::A        0x0000  0x0000
        0014: ::1        ::C        0x0000  0x0000
        0015: ::1        ::E        0x0000  0x0000
        0016: ::2        ::         0x0000  0x0000
        0017: ::2        ::2        0x0000  0x0000
        0018: ::2        ::4        0x0000  0x0000
        0019: ::2        ::6        0x0000  0x0000
        0020: ::2        ::8        0x0000  0x0000
        0021: ::2        ::A        0x0000  0x0000
        0022: ::2        ::C        0x0000  0x0000
        0023: ::2        ::E        0x0000  0x0000
        0024: ::3        ::         0x0000  0x0000
        0025: ::3        ::2        0x0000  0x0000
        0026: ::3        ::4        0x0000  0x0000
        0027: ::3        ::6        0x0000  0x0000
        0028: ::3        ::8        0x0000  0x0000
        0029: ::3        ::A        0x0000  0x0000
        0030: ::3        ::C        0x0000  0x0000
        0031: ::3        ::E        0x0000  0x0000


        WCCP Client ID:          2001:DB8:1::12
        Protocol Version:        2.01
        State:                   Usable
        Redirection:             L2
        Packet Return:           L2
        Assignment:              MASK
        Connect Time:            1w0d
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0
        Mask Allotment:          32 of 64 (50.00%)
        Assigned masks/values:   1/32

        Mask  SrcAddr    DstAddr    SrcPort DstPort
        ----  -------    -------    ------- -------
        0000: ::3        ::F        0x0000  0x0000

        Value SrcAddr    DstAddr    SrcPort DstPort
        ----- -------    -------    ------- -------
        0000: ::         ::1        0x0000  0x0000
        0001: ::         ::3        0x0000  0x0000
        0002: ::         ::5        0x0000  0x0000
        0003: ::         ::7        0x0000  0x0000
        0004: ::         ::9        0x0000  0x0000
        0005: ::         ::B        0x0000  0x0000
        0006: ::         ::D        0x0000  0x0000
        0007: ::         ::F        0x0000  0x0000
        0008: ::1        ::1        0x0000  0x0000
        0009: ::1        ::3        0x0000  0x0000
        0010: ::1        ::5        0x0000  0x0000
        0011: ::1        ::7        0x0000  0x0000
        0012: ::1        ::9        0x0000  0x0000
        0013: ::1        ::B        0x0000  0x0000
        0014: ::1        ::D        0x0000  0x0000
        0015: ::1        ::F        0x0000  0x0000
        0016: ::2        ::1        0x0000  0x0000
        0017: ::2        ::3        0x0000  0x0000
        0018: ::2        ::5        0x0000  0x0000
        0019: ::2        ::7        0x0000  0x0000
        0020: ::2        ::9        0x0000  0x0000
        0021: ::2        ::B        0x0000  0x0000
        0022: ::2        ::D        0x0000  0x0000
        0023: ::2        ::F        0x0000  0x0000
        0024: ::3        ::1        0x0000  0x0000
        0025: ::3        ::3        0x0000  0x0000
        0026: ::3        ::5        0x0000  0x0000
        0027: ::3        ::7        0x0000  0x0000
        0028: ::3        ::9        0x0000  0x0000
        0029: ::3        ::B        0x0000  0x0000
        0030: ::3        ::D        0x0000  0x0000
        0031: ::3        ::F        0x0000  0x0000

Table 22 show ipv6 wccp service-number detail Field Descriptions

Field

Description

Protocol Version

The version of WCCP being used by the router in the service group.

State

Indicates whether the WCCP client is operating properly and can be contacted by a router and other clients in the service group.

When a WCCP client has an incompatible message interval setting, the state of the client is shown as "NOT Usable," followed by a status message describing the reason why the client is not usable.

Redirection

Indicates the redirection method used. WCCP uses GRE or L2 to redirect IP traffic.

Assignment

Indicates the load-balancing method used. WCCP uses HASH or MASK assignment.

Message Interval

The fixed time interval (in seconds)between successive keepalive messages sent from a WCCCP client to a WCCP router. The default time interval is 10 seconds. If the default time interval is configured, the "Message Interval" field is not displayed.

Client timeout

The time (in seconds) that must pass without a WCCP router receiving a keepalive message from a client before the WCCP router considers that client unreachable and removes it from the service group.

Assignment timeout

The time (in seconds) that must pass after the WCCP router detects a failed client and begins to redirect traffic.

Packets Redirected

The number of packets that have been redirected to the content engine.

Connect Time

The amount of time (in hours, minutes, and seconds) the client has been connected to the router.

Examples

The following is sample output from the show ipv6 wccp interfaces command:

Router# show ipv6 wccp interfaces

WCCP interface configuration:
    FastEthernet0/1/0
        Output services: 2
        Input services: 3
        Mcast services: 1
        Exclude In:      FALSE

The table below describes the significant fields shown in the display.

Table 23 show ipv6 wccp interfaces Field Descriptions

Field

Description

Output services

Indicates the number of output services configured on the interface.

Input services

Indicates the number of input services configured on the interface.

Mcast services

Indicates the number of multicast services configured on the interface.

Exclude In

Displays whether traffic on the interface is excluded from redirection.

Examples

The following is sample output from the show ipv6 wccp web-cache command:

Router# show ipv6 wccp web-cache

Global WCCP information:
    Router information:
        Router Identifier:                   2001:DB8:100::1

    Service Identifier: web-cache
        Protocol Version:                    2.01
        Number of Service Group Clients:     2
        Number of Service Group Routers:     1
        Total Packets Redirected:            0
          Process:                           0
          CEF:                               0
        Service mode:                        Open
        Service Access-list:                 -none-
        Total Packets Dropped Closed:        0
        Redirect access-list:                -none-
        Total Packets Denied Redirect:       0
        Total Packets Unassigned:            0
        Group access-list:                   -none-
        Total Messages Denied to Group:      0
        Total Authentication failures:       0
        Total GRE Bypassed Packets Received: 0
          Process:                           0
          CEF:                               0
        GRE tunnel interface:                Tunnel1
         

The table below describes the significant fields shown in the display.

Table 24 show ipv6 wccp web-cache Field Descriptions

Field

Description

Protocol Version

The version of WCCP that is being used by the cache engine in the service group.

Service Identifier

Indicates which service is detailed.

Number of Service Group Clients

Number of clients using the router as their home router.

Number of Service Group Routers

The number of routers in the service group.

Total Packets Redirected

Total number of packets redirected by the router.

Service mode

Indicates whether WCCP open or closed mode is configured.

Service Access-list

The name or number of the service access list that determines which packets will be redirected.

Redirect access-list

The name or number of the access list that determines which packets will be redirected.

Total Packets Denied Redirect

Total number of packets that were not redirected because they did not match the access list.

Total Packets Unassigned

Number of packets that were not redirected because they were not assigned to any cache engine. Packets may not be assigned during initial discovery of cache engines or when a cache is dropped from a cluster.

Group access-list

Indicates which cache engine is allowed to connect to the router.

Total Messages Denied to Group

Indicates the number of packets denied by the group-list access list.

Total Authentication failures

The number of instances where a password did not match.

Examples

The following example displays web cache engine information and WCCP traffic counters:

Router# show ipv6 wccp web-cache counters
 
WCCP Service Group Counters:
   Redirected Packets:
     Process:                    0
     CEF:                        0
   Non-Redirected Packets:
     Action - Forward:
       Reason - no assignment:
         Process:                0
         CEF:                    0
     Action - Ignore (forward):
       Reason - redir ACL check:
         Process:                0
         CEF:                    0
     Action - Discard:
       Reason - closed services:
         Process:                0
         CEF:                    0
   GRE Bypassed Packets:
     Process:                    0
     CEF:                        0
   GRE Bypassed Packet Errors:
     Total Errors:
       Process:                  0
       CEF:                      0

   WCCP Client Counters:
     WCCP Client ID:             2001:DB8:1::11
       Redirect Assignments:
         Received:               1
         Invalid:                0
         Duplicate:              0
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0

     WCCP Client ID:             2001:DB8:1::12
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0


The table below describes the significant fields shown in the display.

Table 25 show ipv6 wccp web-cache counters Field Descriptions

Field

Description

Redirected Packets

Total number of packets redirected by the router.

Non-Redirected Packets

Total number of packets not redirected by the router.

Examples

The following example displays web cache engine information and WCCP router statistics for the web cache service:

Router# show ipv6 wccp web-cache detail

WCCP Client information:
        WCCP Client ID:          2001:DB8:1::11
        Protocol Version:        2.01
        State:                   Usable
        Redirection:             GRE
        Packet Return:           GRE
        Assignment:              HASH
        Connect Time:            1w0d
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0
        Hash Allotment:          128 of 256 (50.00%)
        Initial Hash Info:       00000000000000000000000000000000
                                 00000000000000000000000000000000
        Assigned Hash Info:      55555555555555555555555555555555
                                 55555555555555555555555555555555

        WCCP Client ID:          2001:DB8:1::12
        Protocol Version:        2.01
        State:                   Usable
        Redirection:             GRE
        Packet Return:           GRE
        Assignment:              HASH
        Connect Time:            1w0d
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0
        Hash Allotment:          128 of 256 (50.00%)
        Initial Hash Info:       00000000000000000000000000000000
                                 00000000000000000000000000000000
        Assigned Hash Info:      AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
                                 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

The table below describes the significant fields shown in the display.

Table 26 show ipv6 wccp web-cache detail Field Descriptions

Field

Description

WCCP Client Information

The header for the area that contains fields for information on clients.

IP Address

The IP address of the cache engine in the service group.

Protocol Version

The version of WCCP being used by the cache engine in the service group.

State

Indicates whether the cache engine is operating properly and can be contacted by a router and other cache engines in the service group.

Redirected Packets

The number of packets that have been redirected to the cache engine.

Connect Time

The amount of time (in hours, minutes, and seconds) the cache engine has been connected to the router.

Examples

The following example displays web cache engine information and WCCP router statistics that include the bypass counters:

Router# show ipv6 wccp web-cache detail

WCCP Client information:
        WCCP Client ID:          2001:DB8:1::11
        Protocol Version:        2.01
        State:                   Usable
        Redirection:             GRE
        Packet Return:           GRE
        Assignment:              HASH
        Connect Time:            1w0d
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0
        Hash Allotment:          128 of 256 (50.00%)
        Initial Hash Info:       00000000000000000000000000000000
                                 00000000000000000000000000000000
        Assigned Hash Info:      55555555555555555555555555555555
                                 55555555555555555555555555555555

        WCCP Client ID:          2001:DB8:1::12
        Protocol Version:        2.01
        State:                   Usable
        Redirection:             GRE
        Packet Return:           GRE
        Assignment:              HASH
        Connect Time:            1w0d
        Redirected Packets:
          Process:               0
          CEF:                   0
        GRE Bypassed Packets:
          Process:               0
          CEF:                   0
        Hash Allotment:          128 of 256 (50.00%)
        Initial Hash Info:       00000000000000000000000000000000
                                 00000000000000000000000000000000
        Assigned Hash Info:      AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
                                 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA


The table below describes the significant fields shown in the display.

Table 27 show ipv6 wccp web-cache detail Field Descriptions

Field

Description

WCCP Router information

The header for the area that contains fields for the IP address and the version of WCCP associated with the router connected to the cache engine in the service group.

IP Address

The IP address of the router connected to the cache engine in the service group.

Protocol Version

The version of WCCP that is being used by the cache engine in the service group.

WCCP Client Information

The header for the area that contains fields for information on clients.

IP Address

The IP address of the cache engine in the service group.

Protocol Version

The version of WCCP that is being used by the cache engine in the service group.

State

Indicates whether the cache engine is operating properly and can be contacted by a router and other cache engines in the service group.

Initial Hash Info

The initial state of the hash bucket assignment.

Assigned Hash Info

The current state of the hash bucket assignment.

Hash Allotment

The percent of buckets assigned to the current cache engine. Both a value and a percent figure are displayed.

Packets Redirected

The number of packets that have been redirected to the cache engine.

Connect Time

The amount of time (in hours, minutes, and seconds) the cache engine has been connected to the router.

Bypassed Packets

The number of packets that have been bypassed. Process and Cisco Express Forwarding are switching paths within Cisco IOS software.

Examples

The following example displays information about a service, including the service definition and all other per-service information:

Router# show ipv6 wccp web-cache service

WCCP service information definition:
        Type:          Standard
        Id:            0
        Priority:      240
        Protocol:      6
        Options:       0x00000512
        --------
            Mask/Value sets: 1 
            Value elements: 4
            Dst Ports: 80 0 0 0 0 0 0 0

Examples

The following example displays information on the configured WCCP services and a summary of their current state:

Router# show ipv6 wccp summary

WCCP version 2 enabled, 2 services
Service     Clients   Routers   Assign      Redirect   Bypass     
-------     -------   -------   ------      --------   ------     
Default routing table (Router Id: 2001:DB8:100::1):
web-cache   2         1         HASH        GRE        GRE        
61          2         1         MASK        L2         L2         
62          2         1         MASK        L2         L2 

The table below describes the significant fields shown in the display.

Table 28 show ipv6 wccp summary Field Descriptions

Field

Description

Service

Indicates which service is detailed.

Clients

Indicates the number of cache engines participating in the WCCP service.

Routers

Indicates the number of routers participating in the WCCP service.

Assign

Indicates the load-balancing method used. WCCP uses HASH or MASK assignment.

Redirect

Indicates the redirection method used. WCCP uses GRE or L2 to redirect IP traffic.

Bypass

Indicates the bypass method used. WCCP uses GRE or L2 to return packets to the router.

Related Commands

Command

Description

clear ipv6 wccp

Clears the counter for packets redirected using WCCP.

ipv6 wccp

Enables support of the WCCP service for participation in a service group.

ipv6 wccp redirect

Enables packet redirection on an outbound or inbound interface using WCCP.

show ipv6 interface

Lists a summary of the IP information and status of an interface.

show ipv6 wccp global counters

Displays global WCCP information for packets that are processed in software.

show ipv6 wccp global counters

To display IPv6 global Web Cache Communication Protocol (WCCP) information for packets that are processed in software, use the show ipv6 wccp global counters command in user EXEC or privileged EXEC mode.

show ipv6 wccp global counters

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

15.2(3)T

This command was introduced.

15.1(1)SY1

This command was integrated into Cisco IOS Release 15.1(1)SY1.

Usage Guidelines

The show ipv6 wccp globalcounters command displays counters for packets that are processed in software.

Examples

The following example displays global WCCP information for packets that are processed in the software:

Router# show ipv6 wccp global counters 

WCCP Global Counters: 
Packets Seen by WCCP 
Process:   8
CEF (In):  14 
CEF (Out): 0 

The table below describes the significant fields shown in the display.

Table 29 show ipv6 wccp global counters Field Descriptions

Field

Description

CEF (In)

Number of incoming Cisco Express Forwarding packets

CEF (Out)

Number of outgoing Cisco Express Forwarding packets.

Related Commands

Command

Description

clear ipv6 wccp

Clears the counters for packets redirected using WCCP.

ipv6 wccp

Enables support of the WCCP service for participation in a service group.

ipv6 wccp redirect

Enables packet redirection on an outbound or inbound interface using WCCP.

show ipv6 interface

Lists a summary of the IP information and the status of an interface.

show ipv6 wccp

Displays the WCCP global configuration and statistics.

show isis ipv6 rib

To display the Intermediate System-to-Intermediate System (IS-IS) IPv6 local routing information base (RIB), use the show isis ipv6 rib command in user EXEC or privileged EXEC mode.

show isis ipv6 rib [ipv6-prefix]

no show isis ipv6 rib [ipv6-prefix]

Syntax Description

ipv6-prefix

(Optional) IPv6 address prefix.

This argument must be in the form documented in RFC 2373 with the address specified in hexadecimal, 16-bit values between colons.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.3(4)T

This command was introduced.

12.2(25)S

This command was integrated into Cisco IOS Release 12.2(25)S.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(25)SG

This command was integrated into Cisco IOS Release 12.2(25)SG.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Cisco IOS XE Release 2.6

This command was introduced on Cisco ASR 1000 Series devices.

15.2(2)SNG

This command was implemented on the Cisco ASR 901 Series Aggregation Services devices.

15.3(3)M

This command was modified. Filtered routes are now represented by a hyphen (-).

Usage Guidelines

When the optional ipv6-prefix argument is not used, the complete Intermediate System-to-Intermediate System (IS-IS) IPv6 RIB is displayed. When an optional IPv6 prefix is supplied, only the entry matching that prefix is displayed.

Only the optimal paths will be installed in the master IPv6 RIB as IS-IS routes.

Examples

The following is sample output from the show isis ipv6 rib command. An asterisk (*) indicates prefixes that have been installed and a hyphen (-) indicates prefixes that have been filtered out in the master IPv6 RIB as IS-IS routes. Following each prefix is a list of all paths in order of preference, with optimal paths listed first and suboptimal paths listed after optimal paths.

Device# show isis ipv6 rib
 
IS-IS IPv6 process , local RIB
  11::1/128
    via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0, type L2  metric 20 tag 0 LSP [3/3] 
  20::/64
    via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0, type L1  metric 20 tag 0 LSP [4/2] 
    via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0, type L2  metric 20 tag 0 LSP [3/3] 
* 22::2/128
    via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0, type L1  metric 20 tag 0 LSP [4/2] -
    via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0, type L2  metric 20 tag 0 LSP [3/3] -
  2001:DB8::/64
    via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0, type L1  metric 20 tag 0 LSP [4/2] 
    via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0, type L2  metric 20 tag 0 LSP [3/3]

The table below describes the significant fields shown in the display.

Table 30 show isis ipv6 rib Field Descriptions

Field

Description

11::1/128

IPv6 prefix that is stored within the IS-IS local RIB.

via FE80::A8BB:CCFF:FE00:C800/Ethernet0/0

IPv6 address of the next hop—in this instance, Ethernet0/0.

type

Type of path:

  • L1—Level 1
  • L2—Level 2

tag

Priority of the IPv6 prefix. All prefixes have a tag 0 priority unless otherwise configured.

LSP [3/3]

Link-state packet (LSP). The numbers following LSP indicate the LSP index and LSP version, respectively.

*

Prefixes that have been installed in the master IPv6 RIB as IS-IS routes.

-

Route paths that are filtered out.

Related Commands

Command

Description

distribute-list in (IP)

Filters routes received in incoming updates.

show isis ip rib

Displays the IS-IS IPv4 local RIB.

redistribute (IP)

Redistributes routes from one routing domain into another routing domain.

show monitor event-trace vpn-mapper

To display event trace messages for IPv6 virtual private networks (VPNs), use the show monitor event-trace vpn-mappercommand in privileged EXEC mode.

show monitor event-trace vpn-mapper { latest | all }

Syntax Description

latest

Displays only the event trace messages since the last show monitor event-trace command was entered.

all

Displays all event trace messages currently in memory for the specified component.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.2(33)SRB1

This command was introduced.

12.2(33)SXI

This command was integrated into Cisco IOS Release 12.2(33)SXI.

Usage Guidelines

Use the show monitor event-trace command to display trace message information about IPv6 VPNs.

Examples

The following example allows event trace messages for IPv6 VPNs to be displayed:

Router# show monitor event-trace vpn-mapper

show ospfv3 border-routers

To display the internal Open Shortest Path First version 3 (OSPFv3) routing table entries to an Area Border Router (ABR) and Autonomous System Boundary Router (ASBR), use the show ospfv3 border-routers command in privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] border-routers

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A VRF name of "*" displays information for all VRFs, including the global table.

Command Modes


Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

Cisco IOS Release 15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

Cisco IOS Release 15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Examples

The following examples enables the display of the internal OSPFv3 routing table entries to an ABR and ASBR:

Router# show ospfv3 border-routers

show ospfv3 database

To display lists of information related to the Open Shortest Path First version 3 (OSPFv3) database for a specific router, use the show ospfv3 database command in user EXEC or privileged EXEC mode. The various forms of this command deliver information about different OSPFv3 link-state advertisements (LSAs).

{ show ospfv3 [ process-id [area-id] ] [address-family] [ vrf { vrf-name | * } ] database [ database-summary | internal | external [ipv6-prefix] [link-state-id] ] | grace | inter-area prefix [ ipv6-prefix | link-state-id ] | inter-area router [ destination-router-id | link-state-id ] | link [ interface interface-name | link-state-id ] | network [link-state-id] | nssa-external [ipv6-prefix] [link-state-id] | prefix [ ref-lsa { router | network } | link-state-id ] | promiscuous | router [link-state-id] | unknown [ { area | as | link } [link-state-id] ] [ adv-router router-id ] [self-originate] }

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

area-id

(Optional) Displays information only about a specified area. The area-id argument can only be used if the process-id argument is specified.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

database-summary

(Optional) Displays how many of each type of LSAs exist for each area in the database, and the total.

internal

(Optional) Internal LSA information.

external

(Optional) Displays information only about the external LSAs.

ipv6-prefix

(Optional) Link-local IPv6 address of the neighbor. This argument must be in the form documented in RFC 2373 where the address is specified in hexadecimal using 16-bit values between colons.

grace

(Optional) Displays information about OSPFv3 graceful restart.

link-state-id

(Optional) An integer used to differentiate LSAs. In network and link LSAs, the link-state ID matches the interface index.

inter-area prefix

(Optional) Displays information only about LSAs based on inter-area prefix LSAs.

inter-area router

(Optional) Displays information only about LSAs based on inter-area router LSAs.

destination-router-id

(Optional) The specified destination router ID.

link

(Optional) Displays information about the link LSAs.

interface

(Optional) Displays information about the LSAs filtered by interface context.

interface-name

(Optional) Specifies the LSA interface.

network

(Optional) Displays information only about the network LSAs.

nssa-external

(Optional) Displays information only about the not so stubby area (NSSA) external LSAs.

prefix

(Optional) Displays information on the intra-area-prefix LSAs.

promiscuous

(Optional) Displays temporary LSAs in a Mobile Ad Hoc Network (MANET).

ref-lsa {router | network}

(Optional) Further filters the prefix LSA type.

router

(Optional) Displays information only about the router LSAs.

unknown

(Optional) Displays all LSAs with unknown types.

area

(Optional) Filters unknown area LSAs.

as

(Optional) Filters unknown autonomous system (AS) LSAs.

link

(Optional) When following the unknown keyword, the link keyword filters link-scope LSAs.

adv-router router-id

(Optional) Displays all the LSAs of the advertising router. This argument must be in the form documented in RFC 2740 where the address is specified in hexadecimal using 16-bit values between colons.

self-originate

(Optional) Displays only self-originated LSAs (from the local router).

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

The adv-router keyword requires a router ID. The self-originate keyword displays only those LSAs that originated from the local router. Both of these keywords can be appended to all other keywords used with the show ospfv3 databasedatabase command to provide more detailed information.

Examples

The following is sample output from the show ospfv3 database command when no arguments or keywords are used:

Router# show ospfv3 database 
            OSPFv3 Router with ID (172.16.4.4) (Process ID 1)
                Router Link States (Area 0)
ADV Router         Age         Seq#        Fragment ID   Link count  Bits
172.16.4.4         239         0x80000003  0             1           B
172.16.6.6         239         0x80000003  0             1           B
            Inter Area Prefix Link States (Area 0)
ADV Router         Age         Seq#        Prefix
172.16.4.4         249         0x80000001  FEC0:3344::/32
172.16.4.4         219         0x80000001  FEC0:3366::/32
172.16.6.6         247         0x80000001  FEC0:3366::/32
172.16.6.6         193         0x80000001  FEC0:3344::/32
172.16.6.6         82          0x80000001  FEC0::/32
            Inter Area Router Link States (Area 0)
ADV Router         Age         Seq#        Link ID    Dest RtrID
172.16.4.4         219         0x80000001  50529027   172.16.3.3
172.16.6.6         193         0x80000001  50529027   172.16.3.3
          
            Link (Type-8) Link States (Area 0)
ADV Router         Age         Seq#        Link ID    Interface
172.16.4.4         242         0x80000002  14         PO4/0
172.16.6.6         252         0x80000002  14         PO4/0
            Intra Area Prefix Link States (Area 0)
ADV Router         Age         Seq#        Link ID    Ref-lstype  Ref-LSID
172.16.4.4         242         0x80000002  0          0x2001      0
172.16.6.6         252         0x80000002  0          0x2001      0

The table below describes the significant fields shown in the display.

Table 31 show ospfv3 database Field Descriptions

Field

Description

ADV Router

Advertising router ID.

Age

Link-state age.

Seq#

Link-state sequence number (detects old or duplicate LSAs).

Link ID

Interface ID number.

Ref-lstype

Referenced link-state type.

Ref-LSID

Referenced link-state ID.

show ospfv3 events

To display detailed information about Open Shortest Path First version 3 (OSPFv3) events, use the show ospfv3 eventscommand in privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] events [ generic | interface | lsa | neighbor | reverse | rib | spf ]

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

generic

(Optional) Generic information regarding OSPFv3 events.

interface

(Optional) Interface state change events, including old and new states.

lsa

(Optional) LSA arrival and LSA generation events.

neighbor

(Optional) Neighbor state change events, including old and new states.

reverse

(Optional) Keyword to allow the display of events in reverse-from the latest to the oldest or from oldest to the latest.

rib

(Optional) Routing Information Base (RIB) update, delete, and redistribution events.

spf

(Optional) Scheduling and SPF run events.

Command Modes


Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

An OSPFv3 event log is kept for every OSPFv3 instance. If you enter the show ospfv3 events command without any keywords, all information in the OSPFv3 event log is displayed. Use the keywords to filter specific information.

Examples

The following example enables the display of information about OSPFv3 events:

Router# show ospfv3 events 

show ospfv3 flood-list

To display a list of Open Shortest Path First version 3 (OSPFv3) link-state advertisements (LSAs) waiting to be flooded over an interface, use the s how ospfv3 flood-listcommand in privileged EXEC mode.

show ospfv3 [process-id] [area-id] [address-family] [ vrf { vrf-name | * } ] flood-list interface-type interface-number

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

area-id

(Optional) Displays information only about a specified area.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

interface-type

Interface type over which the LSAs will be flooded.

interface-number

Interface number over which the LSAs will be flooded.

Command Modes


Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

Use this command to display OSPFv3 packet pacing.

Examples

The following displays a list of OSPFv3 LSAs waiting to be flooded over an interface:

Router# show ospfv3 flood-list 

show ospfv3 graceful-restart

To display Open Shortest Path First version 3 (OSPFv3) graceful restart information, use the show ospfv3 graceful-restart command in privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] graceful-restart

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

Command Modes


Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

Use the show ospfv3 graceful-restart command to discover information about the OSPFv3 graceful restart feature.

Examples

The following example displays OSPFv3 graceful restart information:

Router# show ospfv3 graceful-restart

show ospfv3 interface

To display Open Shortest Path First version 3 (OSPFv3)-related interface information, use the show ospfv3 interface command in privileged mode.

show ospfv3 [process-id] [area-id] [address-family] [ vrf { vrf-name | * } ] interface [ type number ] [brief]

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

area-id

(Optional) Displays information about a specified area only.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

type number

(Optional) Interface type and number.

brief

(Optional) Displays brief overview information for OSPFv3 interfaces, states, addresses and masks, and areas on the router.

Command Modes


Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Examples

The following is sample output from the show ospfv3 interface command for a Mobile Ad Hoc Network (MANET) environment:

Router# show ospfv3 interface
Ethernet0/0 is up, line protocol is up 
Link Local Address FE80::A8BB:CCFF:FE01:5500, Interface ID 3
Area 0, Process ID 100, Instance ID 0, Router ID 172.16.3.3
Network Type MANET, Cost: 10 (dynamic), Cost Hysteresis: Disabled
Cost Weights: Throughput 100, Resources 100, Latency 100, L2-factor 100
Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT,
Timer intervals configured, Hello 5, Dead 20, Wait 20, Retransmit 5
Hello due in 00:00:01
Supports Link-local Signaling (LLS)
Index 1/1/1, flood queue length 0
Next 0x0(0)/0x0(0)/0x0(0)
Last flood scan length is 2, maximum is 2
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1 
Adjacent with neighbor 2.2.2.2
Suppress hello for 0 neighbor(s)
Incremental Hello is enabled
Local SCS number 1
Relaying enabled
Next 0x0(0)/0x0(0)/0x0(0)
  Last flood scan length is 12, maximum is 12
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1 
    Adjacent with neighbor 172.16.6.6  (Designated Router)
  Suppress hello for 0 neighbor(s)
Router#

The table below describes the significant fields shown in the display.

Table 32 show ospfv3 interface Field Descriptions

Field

Description

Ethernet0/0

Status of the physical link and the operational status of the protocol.

Link Local Address

Interface IPv6 address.

Area 0, Process ID 100, Instance ID 0, Router ID 172.16.3.3

Area ID, process ID, instance ID, and router ID of the area from which this route is learned.

Network Type MANET, Cost: 10 (dynamic), Cost hysteresis: Disabled

Network type and link-state cost.

Transmit Delay

Transmit delay, interface state, and router priority.

Timer intervals configured

Configuration of timer intervals, including hello-increment and dead-interval.

Hello due in 00:00:01

Number of seconds until the next hello packet is sent from this interface.

Supports Link-local Signaling (LLS)

Indicates that LLS is supported.

Last flood scan length is 2, maximum is 2

Indicates length of last flood scan and the maximum length.

Last flood scan time is 0 msec, maximum is 0 msec

Indicates how many milliseconds the last flood scan occurred and the maximum time length.

Neighbor Count

Count of network neighbors and a list of adjacent neighbors.

Adjacent with neighbor 2.2.2.2

Lists the adjacent neighbor.

Suppress hello for 0 neighbor(s)

Indicates the number of neighbors to suppress hello messages

show ospfv3 max-metric

To display Open Shortest Path First version 3 (OSPFv3) maximum metric origination information, use the show ospfv3 max-metric command in user EXEC or privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] max-metric

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

The information displayed by the show ospfv3 max-metric command is useful in debugging OSPFv3 routing operations. You can also use the show ipv6 ospf max-metric command display the same information as the show ospfv3 max-metric command.

Examples

The following is sample output from the show ospfv3 max-metric command:

Router# show ospfv3 1 max-metric
Routing Process "ospfv3 1" with ID 192.168.2.1
 Event-log enabled, Maximum number of events: 1000, Mode: cyclic
 Originating router-LSAs with maximum metric, Time remaining: 00:01:18 
    Condition: on startup while BGP is converging, State: active       
 Initial SPF schedule delay 5000 msecs
 Minimum hold time between two consecutive SPFs 10000 msecs
 Maximum wait time between two consecutive SPFs 10000 msecs
 Minimum LSA interval 5 secs
 Minimum LSA arrival 1000 msecs
 LSA group pacing timer 240 secs
 Interface flood pacing timer 33 msecs
 Retransmission pacing timer 66 msecs
 Number of external LSA 0. Checksum Sum 0x000000
 Number of areas in this router is 1. 1 normal 0 stub 0 nssa
 Graceful restart helper support enabled
 Reference bandwidth unit is 100 mbps
    Area BACKBONE(0)
        Number of interfaces in this area is 1
        SPF algorithm executed 2 times
        Number of LSA 6. Checksum Sum 0x0327C7
        Number of DCbitless LSA 0
        Number of indication LSA 0
        Number of DoNotAge LSA 0
        Flood list length 0

The table below describes the significant fields shown in the display.

Table 33 show ospfv3 max-metric command

Field

Description

Routing Process "ospfv3 1" with ID 192.168.2.1

The routing process specified by process ID.

Event-log enabled, Maximum number of events: 1000, Mode: cyclic

Configuration for this OSPFv3 process.

Originating router-LSAs with maximum metric, Time remaining: 00:01:18

Condition: on startup while BGP is converging, State: active

The router advertises a max metric until Border Gateway Protocol (BGP) routing tables have converged or the default timer has expired.

show ospfv3 neighbor

To display Open Shortest Path First for IPv6 (OSPFv3) neighbor information on a per-interface basis, use the show ospfv3 neighbor command in user EXEC or privileged EXEC mode.

show ospfv3 [process-id] [area-id] [address-family] [ vrf { vrf-name | * } ] neighbor [ interface-type interface-number ] [neighbor-id] [detail] [summary [per-instance]]

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

area-id

(Optional) Displays information only about a specified area.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

interface-type interface-number

(Optional) Interface type and number.

neighbor-id

(Optional) Neighbor ID.

detail

(Optional) Displays all neighbors in detail (lists all neighbors).

summary

(Optional) Displays total number summary of all neighbors.

per-instance

(Optional) Displays total number of neighbors in each neighbor state. The output is printed for each configured OSPF instance separately.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M. This command was modified. The summary and per-instance keywords were added.

Cisco IOS XE Release 3.8S

This command was integrated into Cisco IOS XE Release 3.8S. This command was modified. The summary and per-instance keywords were added.

Examples

The following is sample output from the show ospfv3 neighbor command:

Device# show ospfv3 neighbor
 
OSPFv3 Router with ID (42.1.1.1) (Process ID 42)
Neighbor ID     Pri   State           Dead Time   Interface ID    Interface
44.4.4.4        1    FULL/  -        00:00:39    12              vm1
OSPFv3 Router with ID (1.1.1.1) (Process ID 100)
Neighbor ID     Pri   State           Dead Time   Interface ID    Interface
4.4.4.4          1    FULL/  -        00:00:35    12              vm1

The following is sample output from the show ospfv3 neighbor command with the detail keyword for a Mobile Ad Hoc Network (MANET) environment:

Device# show ospfv3 neighbor detail
Neighbor 42.4.4.4, interface address 4.4.4.4
In the process ID 42 area 0 via interface vmi1 
Neighbor: interface-id 12, link-local address FE80::A8BB:CCFF:FE01:5800
Neighbor priority is 1, State is FULL, 6 state changes
Options is 0x000F12 in Hello (E-Bit, R-bit, AF-Bit, L-Bit, I-Bit, F-Bit)
Options is 0x000112 in DBD (E-Bit, R-bit, AF-Bit)
Dead timer due in 00:00:33
Neighbor is up for 00:09:43
Index 1/1/1, retransmission queue length 0, number of retransmission 0
First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0)
Last retransmission scan length is 0, maximum is 0
Last retransmission scan time is 0 msec, maximum is 0 msec
Neighbor is incremental Hello capable
Last known SCS number 1
Neighbor's willingness 128
We are standby relay for the neighbor
This neighbor is standby relay for us
Neighbor is running Manet Version 10
Neighbor 4.4.4.4
In the process ID 100 area 0 via interface vmi1 
Neighbor: interface-id 12, link-local address FE80::A8BB:CCFF:FE01:5800
Neighbor priority is 1, State is FULL, 6 state changes
Options is 0x000E13 in Hello (V6-Bit, E-Bit, R-bit, L-Bit, I-Bit, F-Bit)
Options is 0x000013 in DBD (V6-Bit, E-Bit, R-bit)
Dead timer due in 00:00:37
Neighbor is up for 00:09:43
Index 1/1/1, retransmission queue length 0, number of retransmission 0
First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0)
Last retransmission scan length is 0, maximum is 0
Last retransmission scan time is 0 msec, maximum is 0 msec
Neighbor is incremental Hello capable
Last known SCS number 1
Neighbor's willingness 128
Two-hop neighbors:
5.5.5.5
We are standby relay for the neighbor
This neighbor is active relay for us
Neighbor is running Manet Version 10
Selective Peering is enabled
1 paths to this neighbor
Neighbor peering state: Slave, local peering state: Master, 
Default cost metric is 0
Minimum incremental cost is 10

The table below describes the significant fields shown in the display.

Table 34 show ospfv3 neighbor Field Descriptions

Field

Description

Neighbor ID; Neighbor

Neighbor device ID.

In the area

Area and interface through which the OSPFv3 neighbor is known.

Pri; Neighbor priority

Device priority of the neighbor, neighbor state.

State

OSPFv3 state.

State changes

Number of state changes since the neighbor was created.

Options

Hello packet options field contents (E-bit only). Possible values are 0 and 2; 2 indicates area is not a stub; 0 indicates area is a stub.)

Dead timer due in

Expected time before Cisco IOS software declares the neighbor dead.

Neighbor is up for

Number of hours:minutes:seconds since the neighbor went into two-way state.

Index

Neighbor location in the area-wide and autonomous system-wide retransmission queue.

retransmission queue length

Number of elements in the retransmission queue.

number of retransmission

Number of times update packets have been resent during flooding.

First

Memory location of the flooding details.

Next

Memory location of the flooding details.

Last retransmission scan length

Number of link state advertisements (LSAs) in the last retransmission packet.

maximum

Maximum number of LSAs sent in any retransmission packet.

Last retransmission scan time

Time taken to build last retransmission packet.

maximum

Maximum time taken to build any retransmission packet.

Neighbor is incremental Hello capable

The MANET neighbor interface is capable of receiving increment hello messages.

A neighbor must be capable of sending and receiving incremental hello packets to be a full neighbor on a MANET interface.

Last known SCS number 1

Indicates the last received MANET state. The State Change Sequence number is included in the incremental hello packet.

Neighbor’s willingness 128

Indicates the neighbors willingness to act as an active relay for this device, on a scale of 0 (not willing) to 255 (always willing).

Willingness is used as a tiebreaker when electing an active relay.

We are standby relay for neighbor

Indicates that this device will not flood LSAs received from this neighbor until one or more of its neighbors fails to acknowledge receiving the LSA flood from another neighbor.

Neighbor is running Manet Version 10

Indicates the MANET version number.

Devices cannot establish full adjacency unless they are running the same MANET version.

Two-hop neighbors

Lists the device IDs of all full neighbors of the specified device that are not also neighbors of this device.

Selective Peering is enabled

The MANET interface has selective peering enabled.

1 paths to this neighbor

Indicates the number of unique paths to this device that exist in the routing table.

This number might exceed the redundancy level configured for this OSPFv3 process.

Neighbor peering state...

Indicates which device is entitled to make the selective peering decision.

Generally speaking, the entitled device has the smaller number of full neighbors at the time the devices discover each other.

Default cost metric is 0

Indicates the maximum OSPFv3 cost to a new neighbor to be considered for selective peering.

If 0, a threshold OSPFv3 cost is not required for consideration.

Minimum incremental cost is 10

Indicates the minimum cost increment for the specified interface.

The following is sample output from the show ospfv3 neighbor summary command:

Device# show ospfv3 neighbor summary
 
OSPFv3 1 address-family ipv6 (router-id 10.4.9.158)

DOWN         0
ATTEMPT      0
INIT         0
2WAY         0
EXSTART      0
EXCHANGE     0
LOADING      0
FULL         1
Total count  1    (Undergoing GR 0)

The following is sample output from the show ospfv3 neighbor summary per-instance command:

Device# show ospfv3 neighbor summary per-instance
 
OSPFv3 1 address-family ipv6 (router-id 10.4.9.158)

DOWN         0
ATTEMPT      0
INIT         0
2WAY         0
EXSTART      0
EXCHANGE     0
LOADING      0
FULL         1
Total count  0    (Undergoing GR 0)


Neighbor summary for selected OSPFv3 processes

DOWN         0
ATTEMPT      0
INIT         0
2WAY         0
EXSTART      0
EXCHANGE     0
LOADING      0
FULL         1
Total count  0    (Undergoing GR 0)

Table 35  show ospfv3 neighbor summary and show ospfv3 neighbor summary per-instance Field Descriptions

Field

Description

DOWN

No information (hellos) has been received from this neighbor, but hello packets can still be sent to the neighbor in this state.

ATTEMPT

This state is only valid for manually configured neighbors in a Non-Broadcast Multi-Access (NBMA) environment. In Attempt state, the device sends unicast hello packets every poll interval to the neighbor, from which hellos have not been received within the dead interval.

INIT

This state specifies that the device has received a hello packet from its neighbor, but the receiving device's ID was not included in the hello packet. When a device receives a hello packet from a neighbor, it should list the sender's device ID in its hello packet as an acknowledgment that it received a valid hello packet.

2WAY

This state designates that bi-directional communication has been established between two devices.

EXSTART

This state is the first step in creating an adjacency between the two neighboring devices. The goal of this step is to decide which device is the master, and to decide upon the initial DD sequence number. Neighbor conversations in this state or greater are called adjacencies.

EXCHANGE

In this state, OSPF devices exchange database descriptor (DBD) packets. Database descriptors contain link-state advertisement (LSA) headers only and describe the contents of the entire link-state database. Each DBD packet has a sequence number which can be incremented only by master which is explicitly acknowledged by slave. Devices also send link-state request packets and link-state update packets (which contain the entire LSA) in this state. The contents of the DBD received are compared to the information contained in the devices link-state database to check if new or more current link-state information is available with the neighbor.

LOADING

In this state, the actual exchange of link state information occurs. Based on the information provided by the DBDs, devices send link-state request packets. The neighbor then provides the requested link-state information in link-state update packets. During the adjacency, if a device receives an outdated or missing LSA, it requests that LSA by sending a link-state request packet. All link-state update packets are acknowledged.

FULL

In this state, devices are fully adjacent with each other. All the device and network LSAs are exchanged and the devices' databases are fully synchronized.

Full is the normal state for an OSPF device. If a device is stuck in another state, it's an indication that there are problems in forming adjacencies. The only exception to this is the 2-way state, which is normal in a broadcast network. Devices achieve the full state with their DR and BDR only. Neighbors always see each other as 2-way.

show ospfv3 request-list

To display a list of all link-state advertisements (LSAs) requested by a router, use the show ospfv3 request-listcommand in user EXEC or privileged EXEC mode.

show ospfv3 [process-id] [area-id] [address-family] [ vrf { vrf-name | * } ] request-list [neighbor] [interface] [interface-neighbor]

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the Open Shortest Path First version 3 (OSPFv3) routing process and can be a value from 1 through 65535.

area-id

(Optional) Displays information only about a specified area.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

neighbor

(Optional) Displays the list of all LSAs requested by the router from this neighbor.

interface

(Optional) Displays the list of all LSAs requested by the router from this interface.

interface-neighbor

(Optional) Displays the list of all LSAs requested by the router on this interface, from this neighbor.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

The information displayed by the show ospfv3 request-list command is useful in debugging OSPFv3 routing operations.

Examples

The following example shows information about the LSAs requested by the router:

Router# show ospfv3 request-list
 
            OSPFv3 Router with ID (192.168.255.5) (Process ID 1)
 Neighbor 192.168.255.2, interface Ethernet0/0 address
FE80::A8BB:CCFF:FE00:6600
 Type    LS ID           ADV RTR         Seq NO      Age    Checksum
  1      0.0.0.0         192.168.255.3   0x800000C2  1      0x0014C5
  1      0.0.0.0         192.168.255.2   0x800000C8  0      0x000BCA
  1      0.0.0.0         192.168.255.1   0x800000C5  1      0x008CD1
  2      0.0.0.3         192.168.255.3   0x800000A9  774    0x0058C0
  2      0.0.0.2         192.168.255.3   0x800000B7  1      0x003A63

The table below describes the significant fields shown in the display.

Table 36 show ospfv3 request-list Field Descriptions

Field

Description

OSPFv3 Router with ID (192.168.255.5) (Process ID 1)

Identification of the router for which information is displayed.

Interface Ethernet0/0

Interface for which information is displayed.

Type

Type of LSA.

LS ID

Link-state ID of the LSA.

ADV RTR

IP address of advertising router.

Seq NO

Sequence number of LSA.

Age

Age of LSA (in seconds).

Checksum

Checksum of LSA.

show ospfv3 retransmission-list

To display a list of all link-state advertisements (LSAs) waiting to be re-sent, use the show ospfv3 retransmission-listcommand in user EXEC or privileged EXEC mode.

show ospfv3 [process-id] [area-id] [address-family] [ vrf { vrf-name | * } ] retransmission-list [neighbor] [interface] [interface-neighbor]

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the Open Shortest Path First version 3 (OSPFv3) routing process and can be a value from 1 through 65535.

area-id

(Optional) Displays information only about a specified area.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

neighbor

(Optional) Displays the list of all LSAs waiting to be re-sent for this neighbor.

interface

(Optional) Displays the list of all LSAs waiting to be re-sent on this interface.

interface neighbor

(Optional) Displays the list of all LSAs waiting to be re-sent on this interface, from this neighbor.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

The information displayed by the show ospfv3 retransmission-list command is useful in debugging Open Shortest Path First version 3 (OSPFv3) routing operations.

Examples

The following is sample output from the show ospfv3 retransmission-list command:

Router# show ospfv3 retransmission-list
 
        OSPFv3 Router with ID (192.168.255.2) (Process ID 1)
 Neighbor 192.168.255.1, interface Ethernet0/0
 Link state retransmission due in 3759 msec, Queue length 1
 Type    LS ID           ADV RTR         Seq NO      Age    Checksum
 0x2001  0               192.168.255.2   0x80000222  1      0x00AE52

The table below describes the significant fields shown in the display.

Table 37 show ospfv3 retransmission-list Field Descriptions

Field

Description

OSPFv3 Router with ID (192.168.255.2) (Process ID 1)

Identification of the router for which information is displayed.

Interface Ethernet0/0

Interface for which information is displayed.

Link state retransmission due in

Length of time before next link-state transmission.

Queue length

Number of elements in the retransmission queue.

Type

Type of LSA.

LS ID

Link-state ID of the LSA.

ADV RTR

IP address of advertising router.

Seq NO

Sequence number of the LSA.

Age

Age of LSA (in seconds).

Checksum

Checksum of LSA.

show ospfv3 statistic

To display Open Shortest Path First version 3 (OSPFv3) shortest path first (SPF) calculation statistics, use the show ospfv3 statistic command in user EXEC or privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] statistic [detail]

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

detail

(Optional) Displays statistics separately for each OSPFv3 area and includes additional, more detailed statistics.

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

The show ospfv3 statistics command provides important information about SPF calculations and the events that trigger them. This information can be meaningful for both OSPF network maintenance and troubleshooting. For example, entering the show ospfv3 statistics command is recommended as the first troubleshooting step for link-state advertisement (LSA) flapping.

Examples

The following example provides detailed statistics for each OSPFv3 area:

Router# show ospfv3 statistics detail
  Area 0: SPF algorithm executed 3 times
SPF 1 executed 00:06:57 ago, SPF type Full
  SPF calculation time (in msec):
  SPT    Prefix D-Int  Sum    D-Sum  Ext    D-Ext  Total
  0      0      0      0      0      0      0      0
  RIB manipulation time (in msec):
  RIB Update    RIB Delete
  0             0             
  LSIDs processed R:1 N:0 Prefix:0 SN:0 SA:0 X7:0
  Change record R N SN SA L
  LSAs changed 1
  Changed LSAs. Recorded is Advertising Router, LSID and LS type:
  10.2.2.2/0(R)
SPF 2 executed 00:06:47 ago, SPF type Full
  SPF calculation time (in msec):
  SPT    Prefix D-Int  Sum    D-Sum  Ext    D-Ext  Total
  0      0      0      0      0      0      0      0
  RIB manipulation time (in msec):
  RIB Update    RIB Delete
  0             0             
  LSIDs processed R:1 N:0 Prefix:1 SN:0 SA:0 X7:0
  Change record R L P
  LSAs changed 4
  Changed LSAs. Recorded is Advertising Router, LSID and LS type:
  10.2.2.2/2(L) 10.2.2.2/0(R) 10.2.2.2/2(L) 10.2.2.2/0(P)

The table below describes the significant fields shown in the display.

Table 38 show ospfv3 statistics Field Descriptions

Field

Description

Area

OSPF area ID.

SPF

Number of SPF algorithms executed in the OSPF area. The number increases by one for each SPF algorithm that is executed in the area.

Executed ago

Time in milliseconds that has passed between the start of the SPF algorithm execution and the current time.

SPF type

SPF type can be Full or Incremental.

SPT

Time in milliseconds required to compute the first stage of the SPF algorithm (to build a short path tree). The SPT time plus the time required to process links to stub networks equals the Intra time.

Ext

Time in milliseconds for the SPF algorithm to process external and not so stubby area (NSSA) LSAs and to install external and NSSA routes in the routing table.

Total

Total duration time in milliseconds for the SPF algorithm process.

LSIDs processed

Number of LSAs processed during the SPF calculation:

  • N--Network LSA.
  • R--Router LSA.
  • SA--Summary Autonomous System Boundary Router (ASBR) (SA) LSA.
  • SN--Summary Network (SN) LSA.
  • Stub--Stub links.
  • X7--External Type-7 (X7) LSA.

 
	 

show ospfv3 summary-prefix

To display a list of all summary address redistribution information configured under an Open Shortest Path First version 3 (OSPFv3) process, use the show ospfv3 summary-prefixcommand in user EXEC or privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] summary-prefix

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

The process-id argument can be entered as a decimal number or as an IPv6 address format.

Examples

The following is sample output from the show ospfv3 summary-prefix command:

Router# show ospfv3 summary-prefix
 
OSPFv3 Process 1, Summary-prefix
FEC0::/24 Metric 16777215, Type 0, Tag 0

The table below describes the significant fields shown in the display.

Table 39 show ospfv3 summary-prefix Field Descriptions

Field

Description

OSPFv3 Process

Process ID of the router for which information is displayed.

Metric

Metric used to reach the destination router.

Type

Type of link-state advertisement (LSA).

Tag

LSA tag.

show ospfv3 timers rate-limit

To display all of the link-state advertisements (LSAs) in the rate limit queue, use the show ospfv3 timers rate-limitcommand in privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] timers rate-limit

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

Command Modes


Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

Use the show ospfv3 timers rate-limit command to discover when LSAs in the queue will be sent.

Examples

The following is sample output from the show ospfv3 timers rate-limitcommand:

Router# show ospfv3 timers rate-limit
List of LSAs that are in rate limit Queue
    LSAID: 0.0.0.0 Type: 0x2001 Adv Rtr: 55.55.55.55 Due in: 00:00:00.500
    LSAID: 0.0.0.0 Type: 0x2009 Adv Rtr: 55.55.55.55 Due in: 00:00:00.500

The table below describes the significant fields shown in the display.

Table 40 show ospfv3 timers rate-limit Field Descriptions

Field

Description

LSAID

ID of the LSA.

Type

Type of LSA.

Adv Rtr

ID of the advertising router.

Due in:

When the LSA is scheduled to be sent (in hours:minutes:seconds).

show ospfv3 traffic

To display Open Shortest Path First version 3 (OSPFv3) traffic statistics, use the show ospfv3 trafficcommand in privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] traffic [ interface-type interface-number ]

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

interface-type interface-number

(Optional) Type and number associated with a specific OSPFv3 interface.

Command Default

When the show ospfv3 traffic command is entered without any arguments, global OSPFv3 traffic statistics are displayed, including queue statistics for each OSPFv3 process, statistics for each interface, and per OSPFv3 process statistics.

Command Modes


Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

You can limit the displayed traffic statistics to those for a specific OSPFv3 process by entering a value for the process-id argument, or you can limit output to traffic statistics for a specific interface associated with an OSPFv3 process by entering values for the interface-type and interface-number arguments.

Examples

The following example shows the display output for the show ospfv3 traffic command for OSPFv3:

Router# show ospfv3 traffic 
OSPFv3 statistics:
  Rcvd: 32 total, 0 checksum errors
        10 hello, 7 database desc, 2 link state req
        9 link state updates, 4 link state acks
        0 LSA ignored
  Sent: 45 total, 0 failed
        17 hello, 12 database desc, 2 link state req
        8 link state updates, 6 link state acks
        OSPFv3 Router with ID (10.1.1.4) (Process ID 6)
OSPFv3 queues statistic for process ID 6
  Hello queue size 0, no limit, max size 2
  Router queue size 0, limit 200, drops 0, max size 2
Interface statistics:
    Interface Serial2/0
OSPFv3 packets received/sent
  Type          Packets              Bytes
  RX Invalid    0                    0
  RX Hello      5                    196
  RX DB des     4                    172
  RX LS req     1                    52
  RX LS upd     4                    320
  RX LS ack     2                    112
  RX Total      16                   852
  TX Failed     0                    0
  TX Hello      8                    304
  TX DB des     3                    144
  TX LS req     1                    52
  TX LS upd     3                    252
  TX LS ack     3                    148
  TX Total      18                   900
OSPFv3 header errors
  Length 0, Checksum 0, Version 0, No Virtual Link 0, 
  Area Mismatch 0, Self Originated 0, Duplicate ID 0, 
  Instance ID 0, Hello 0, MTU Mismatch 0, 
  Nbr Ignored 0, Authentication 0, 
OSPFv3 LSA errors
  Type 0, Length 0, Data 0, Checksum 0, 
    Interface Ethernet0/0
OSPFv3 packets received/sent
  Type          Packets              Bytes
  RX Invalid    0                    0
  RX Hello      6                    240
  RX DB des     3                    144
  RX LS req     1                    52
  RX LS upd     5                    372
  RX LS ack     2                    152
  RX Total      17                   960
  TX Failed     0                    0
  TX Hello      11                   420
  TX DB des     9                    312
  TX LS req     1                    52
  TX LS upd     5                    376
  TX LS ack     3                    148
  TX Total      29                   1308
OSPFv3 header errors
  Length 0, Checksum 0, Version 0, No Virtual Link 0, 
  Area Mismatch 0, Self Originated 0, Duplicate ID 0, 
  Instance ID 0, Hello 0, MTU Mismatch 0, 
  Nbr Ignored 0, Authentication 0, 
OSPFv3 LSA errors
  Type 0, Length 0, Data 0, Checksum 0, 
Summary traffic statistics for process ID 6:
OSPFv3 packets received/sent
  Type          Packets              Bytes
  RX Invalid    0                    0
  RX Hello      11                   436
  RX DB des     7                    316
  RX LS req     2                    104
  RX LS upd     9                    692
  RX LS ack     4                    264
  RX Total      33                   1812
  TX Failed     0                    0
  TX Hello      19                   724
  TX DB des     12                   456
  TX LS req     2                    104
  TX LS upd     8                    628
  TX LS ack     6                    296
  TX Total      47                   2208
OSPFv3 header errors
  Length 0, Checksum 0, Version 0, No Virtual Link 0, 
  Area Mismatch 0, Self Originated 0, Duplicate ID 0, 
  Instance ID 0, Hello 0, MTU Mismatch 0, 
  Nbr Ignored 0, Authentication 0, 
OSPFv3 LSA errors
  Type 0, Length 0, Data 0, Checksum 0, 

The table below describes the significant fields shown in the display.

Table 41 show ospfv3 traffic Field Descriptions

Field

Description

OSPFv3 statistics

Traffic statistics accumulated for all OSPFv3 processes running on the router. To ensure compatibility with the show ip traffic command, only checksum errors are displayed. Identifies the route map name.

OSPFv3 queues statistic for process ID

Queue statistics specific to Cisco IOS software.

Hello queue

Statistics for the internal Cisco IOS queue between the packet switching code (process IP Input) and the OSPFv3 hello process for all received OSPFv3 packets.

Router queue

Statistics for the internal Cisco IOS queue between the OSPFv3 hello process and the OSPFv3 router for all received OSPFv3 packets except OSPFv3 hellos.

queue size

Actual size of the queue.

queue limit

Maximum allowed size of the queue.

queue max size

Maximum recorded size of the queue.

Interface statistics

Per-interface traffic statistics for all interfaces that belong to the specific OSPFv3 process ID.

OSPFv3 packets received/sent

Number of OSPFv3 packets received and sent on the interface, sorted by packet types.

OSPFv3 header errors

Packet appears in this section if it was discarded because of an error in the header of an OSPFv3 packet. The discarded packet is counted under the appropriate discard reason.

OSPFv3 LSA errors

Packet appears in this section if it was discarded because of an error in the header of an OSPFv3 link-state advertisement (LSA). The discarded packet is counted under the appropriate discard reason.

Summary traffic statistics for process ID

Summary traffic statistics accumulated for an OSPFv3 process.

Note   

The OSPFv3 process ID is a unique value assigned to the OSPFv3 process in the configuration.

The value for the received errors is the sum of the OSPFv3 header errors that are detected by the OSPFv3 process, unlike the sum of the checksum errors that are listed in the global OSPFv3 statistics.

show ospfv3 virtual-links

To display parameters and the current state of Open Shortest Path First version 3 (OSPFv3) virtual links, use the show ospfv3 virtual-links command in user EXEC or privileged EXEC mode.

show ospfv3 [process-id] [address-family] [ vrf { vrf-name | * } ] virtual-links

Syntax Description

process-id

(Optional) Internal identification. The number used here is the number assigned administratively when enabling the OSPFv3 routing process and can be a value from 1 through 65535.

address-family

(Optional) Enter ipv6 for the IPv6 address family or ipv4 for the IPv4 address family.

vrf

(Optional) VPN Routing/Forwarding instance.

{vrf-name | *}

The virtual routing and forwarding table for which the information should be displayed. If this parameter is not specified, only information for the global routing table is shown. A vrf name of "*" displays information for all vrfs, including the global table.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

This command was integrated into Cisco IOS XE Release 3.4S.

15.2(1)T

This command was integrated into Cisco IOS Release 15.2(1)T.

15.2(4)S

This command was integrated into Cisco IOS Release 15.2(4)S.

15.2(4)M

This command was integrated into Cisco IOS Release 15.2(4)M.

15.1(1)SY

This command was integrated into Cisco IOS Release 15.1(1)SY.

Usage Guidelines

The information displayed by the show ospfv3 virtual-links command is useful in debugging OSPFv3 routing operations.

Examples

The following is sample output from the show ospfv3 virtual-links command:

Router# show ospfv3 virtual-links 
Virtual Link OSPF_VL0 to router 172.16.6.6 is up
  Interface ID 27, IPv6 address FEC0:6666:6666::
  Run as demand circuit
  DoNotAge LSA allowed.
  Transit area 2, via interface ATM3/0, Cost of using 1
  Transmit Delay is 1 sec, State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:06

The table below describes the significant fields shown in the display.

Table 42 show ospfv3 virtual-links Field Descriptions

Field

Description

Virtual Link OSPF_VL0 to router 172.16.6.6 is up

Specifies the OSPFv3 neighbor, and if the link to that neighbor is up or down.

Interface ID

Interface ID and IPv6 address of the router.

Transit area 2

The transit area through which the virtual link is formed.

via interface ATM3/0

The interface through which the virtual link is formed.

Cost of using 1

The cost of reaching the OSPFv3 neighbor through the virtual link.

Transmit Delay is 1 sec

The transmit delay (in seconds) on the virtual link.

State POINT_TO_POINT

The state of the OSPFv3 neighbor.

Timer intervals...

The various timer intervals configured for the link.

Hello due in 0:00:06

When the next hello is expected from the neighbor.

The following sample output from the show ospfv3 virtual-links command has two virtual links. One is protected by authentication, and the other is protected by encryption. <<This is show ipv6 ospf virtual-links output--should it be modified/replaced?>>

Router# show ospfv3 virtual-links 
Virtual Link OSPFv3_VL1 to router 10.2.0.1 is up
   Interface ID 69, IPv6 address 2001:0DB8:11:0:A8BB:CCFF:FE00:6A00
   Run as demand circuit 
   DoNotAge LSA allowed. 
   Transit area 1, via interface Serial12/0, Cost of using 64 
   NULL encryption SHA-1 auth SPI 3944, secure socket UP (errors: 0) 
   Transmit Delay is 1 sec, State POINT_TO_POINT, 
   Timer intervals configured, Hello 2, Dead 10, Wait 40, Retransmit 5 
     Adjacency State FULL (Hello suppressed) 
     Index 1/2/4, retransmission queue length 0, number of retransmission 1 
     First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0) 
     Last retransmission scan length is 1, maximum is 1 
     Last retransmission scan time is 0 msec, maximum is 0 msec 
Virtual Link OSPFv3_VL0 to router 10.1.0.1 is up 
   Interface ID 67, IPv6 address 2001:0DB8:13:0:A8BB:CCFF:FE00:6700 
   Run as demand circuit 
   DoNotAge LSA allowed. 
   Transit area 1, via interface Serial11/0, Cost of using 128 
   MD5 authentication SPI 940, secure socket UP (errors: 0) 
   Transmit Delay is 1 sec, State POINT_TO_POINT, 
   Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 
     Adjacency State FULL (Hello suppressed) 
     Index 1/1/3, retransmission queue length 0, number of retransmission 1 
First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0) 
     Last retransmission scan length is 1, maximum is 1 
     Last retransmission scan time is 0 msec, maximum is 0 msec 

show platform 6rd tunnel-endpt

To display IPv6 rapid deployment (6RD) information about a tunnel end point, use the show platform 6rd tunnel-endpt command in the Privileged EXEC mode.

show platform 6rd tunnel-endpt

Syntax Description

tunnel-endpt

Displays 6rd tunnel end points.

Command Default

None

Command Modes

Privileged EXEC

Command History

Release Modification

15.3(2)S

This command was introduced on the Cisco 7600 series routers.

Examples

This example displays the total number of tunnel end points configured.

Device#show platform 6rd tunnel-endpt
6rd End-pt in use: 1
6rd End-pt in use: 2
6rd End-pt in use: 3
6rd End-pt in use: 4
6rd End-pt in use: 5
6rd End-pt in use: 6
6rd End-pt in use: 7
6rd End-pt in use: 8
6rd End-pt in use: 9
--More--
6rd End-pt in use: 108
6rd End-pt in use: 109
6rd End-pt in use: 110
Total 6rd End-pt in use: 110

Related Commands

Command

Description

show tunnel 6rd destination

Translates a 6RD prefix to the corresponding IPv4 destination.

tunnel 6rd prefix

Specifies the common IPv6 prefix on IPv6 6RD tunnels.

tunnel mode ipv6ip

Configures a static IPv6 tunnel interface.

tunnel source

Sets the source address for a tunnel interface.

show platform software ipv6-multicast

To display information about the platform software for IPv6 multicast, use the show platform software ipv6-multicastcommand in privileged EXEC mode.

show platform software ipv6-multicast { acl-exception | acl-table | capability | connected | shared-adjacencies | statistics | summary }

Syntax Description

acl-exception

Displays the IPv6-multicast entries that were switched in the software due to ACL exceptions.

acl-table

Displays the IPv6-multicast access list (ACL) request table entries.

capability

Displays the hardware capabilities.

connected

Displays the IPv6-multicast subnet/connected hardware entries.

shared-adjacencies

Displays the IPv6-multicast shared adjacencies.

statistics

Displays the internal software-based statistics.

summary

Displays the IPv6-multicast hardware-shortcut count.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.2(18)SXD

This command was introduced on the Supervisor Engine 720 and the Supervisor Engine 2.

12.2(18)SXE

This command was changed as follows:

  • Add the acl-exception, acl-table, and the statisticskeywords on the Supervisor Engine 720 only.
  • Update the show platform software ipv6-multicast capability command output to include replication information.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

Examples

This example shows how to display the IPv6-hardware capabilities:

Router# show platform software ipv6-multicast capability
 Hardware switching for ipv6 is Enabled
 (S,G) forwarding for ipv6 supported using Netflow
 (*,G) bridging for ipv6 is supported using Fib
 Directly-connected entries for IPv6 is supported using ACL-TCAM.
Current System HW Replication Mode : Egress
Audo-detection of Replication Mode : ON
Slot Replication-Capability Replication-Mode
   2 Egress                 Egress               
   5 Egress                 Egress 

This example shows how to display the IPv6-multicast subnet/connected-hardware entries:

Router# show platform software ipv6-multicast connected
IPv6 Multicast Subnet entries
Flags : H - Installed in ACL-TCAM
        X - Not installed in ACL-TCAM due to
            label-full exception
Interface: Vlan40 [ H ]
         S:40::1 G:FF00::
         S:0:5000::2 G:FF00::
         S:5000::2 G:FF00::
Interface: Vlan30 [ H ]
         S:30::1 G:FF00::
Interface: Vlan20 [ H ]
         S:20::1 G:FF00::
Interface: Vlan10 [ H ]
         S:10::1 G:FF00::

This example shows how to display the IPv6-multicast shared adjacencies:

Router# show platform software ipv6-multicast shared-adjacencies

---- SLOT [7] ----
Shared IPv6 Mcast Adjacencies Index  Packets       Bytes
----------------------------- ------ ------------- ------------------
Subnet bridge adjacency       0x7F802  0             0
Control bridge adjacency      0x7      0             0
StarG_M bridge adjacency      0x8      0             0
S_G bridge adjacency          0x9      0             0
Default drop adjacency        0xA      0             0
StarG (spt == INF) adjacency  0xB      0             0
StarG (spt != INF) adjacency  0xC      0             0

This example shows how to display the IPv6-multicast statistics information:

Router# show platform software ipv6-multicast statistics 
IPv6 Multicast HW-switching Status                 : Enabled
IPv6 Multicast (*,G) HW-switching Status           : Disabled
IPv6 Multicast Subnet-entries Status               : Enabled
Default MFIB IPv6-table                            : 0x5108F770
(S,G,C) flowmask index                             : 3
(*,G,C) flowmask index                             : 65535
General Counters
--------------------------------------------------+------+
Mfib-hw-entries count                              0
Mfib-add count                                     4
Mfib-modify count                                  2
Mfib-delete count                                  2
Mfib-NP-entries count                              0
Mfib-D-entries count                               0
Mfib-IC-entries count                              0
Error Counters
--------------------------------------------------+------+
ACL flowmask err count                             0
ACL TCAM exptn count                               0
ACL renable count                                  0
Idb Null error                                     0

This example shows how to display the IPv6-multicast hardware shortcut count:

Router# show platform software ipv6-multicast summary
IPv6 Multicast Netflow SC summary on Slot[7]:
Shortcut Type               Shortcut count
---------------------------+--------------
(S, G)                      0
IPv6 Multicast FIB SC summary on Slot[7]:
Shortcut Type               Shortcut count
---------------------------+--------------
(*, G/128)                  0
(*, G/m)                    0

Related Commands

Command

Description

ipv6 mfib hardware-switching

Configures hardware switching for IPv6 multicast packets on a global basis.

show platform software vpn

To display information about the platform software for IPv6 Virtual Private Networks (VPNs), use the show platform software vpn command in privileged EXEC mode.

show platform software vpn [ status | mapping ios ]

Syntax Description

status

(Optional) Displays the VPN status.

mapping ios

(Optional) Displays the Cisco IOS mapping information.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.2(33)SRB1

This command was introduced on the Cisco 7600 series routers.

12.2(33)SB

This command was integrated into Cisco IOS Release 12.2(33)SB.

12.2(33)SXI

This command was integrated into Cisco IOS Release 12.2(33)SXI.

Usage Guidelines

If no keyword is used, then all VPN information is displayed.

Examples

The following example shows output regarding platform software for all VPNs:

Router# show platform software vpn

show tunnel 6rd

To display IPv6 rapid deployment (6RD) information about a tunnel, use the show tunnel 6rd command in privileged EXEC mode.

show tunnel 6rd [ tunnel-interface interface-number ]

Syntax Description

tunnel-interface( interface-number

(Optional) Specifies a tunnel interface and number.

Command Modes


Privileged EXEC

Command History

Release

Modification

Cisco IOS XE Release 3.1S

This command was introduced.

15.1(3)T

This command was integrated into Cisco IOS Release 15.1(3)T.

Usage Guidelines

The show tunnel 6rd command displays 6RD-related information on a tunnel. If an interface is not specified, information about all the 6RD tunnels on the router is displayed.

Examples

The following is sample output from the show tunnel 6rd command:

Router# show tunnel 6rd tunnel 1
show tunnel 6rd tunnel 1
Interface Tunnel1:
  Tunnel Source: 10.1.2.1
  6RD: Operational, V6 Prefix: 2001:B000::/32
       V4 Prefix, Length: 16, Value: 10.1.0.0
       V4 Suffix, Length: 8, Value: 0.0.0.1
  General Prefix: 2001:B000:200::/40

The table below describes the significant fields shown in the display.

Table 43 show tunnel 6rd Field Descriptions

Field

Description

Interface Tunnel1:

The specified tunnel interface and number.

Tunnel Source: 10.1.2.1

The source address for the tunnel interface.

6RD: Operational

6RD is enabled on the router.

V6 Prefix: 2001:B000::/32

The common IPv6 prefix on IPv6 6RD tunnels.

V4 Common Prefix Length: 16, Value: 10.1.0.0

The prefix length and value of the IPv4 transport address common to all the 6RD routers in a domain.

V4 Common Suffix Length: 8, Value: 0.0.0.1

The suffix length and value of the IPv4 transport address common to all the 6RD routers in a domain.

Related Commands

Command

Description

tunnel 6rd prefix

Specifies the common IPv6 prefix on IPv6 6RD tunnels.

tunnel mode ipv6ip

Configures a static IPv6 tunnel interface.

tunnel source

Sets the source address for a tunnel interface.

show tunnel 6rd destination

To translate an IPv6 rapid deployment (6RD) prefix to the corresponding IPv4 destination, use the show tunnel 6rd destinationcommand in privileged EXEC mode.

show tunnel 6rd destination ipv6-prefix tunnel-interface interface-number

Syntax Description

ipv6-prefix

The IPv6 network assigned to the general prefix.

tunnel-interface interface-number

Specifies a tunnel interface and number.

Command Modes


Privileged EXEC

Command History

Release

Modification

Cisco IOS XE Release 3.1S

This command was introduced.

15.1(3)T

This command was integrated into Cisco IOS Release 15.1(3)T.

Usage Guidelines

The show tunnel 6rd destination command is used to translate a 6RD prefix to the corresponding IPv4 destination. The IPv4 destination address is displayed in the command output.

Examples

The following is sample output from the show tunnel 6rd destination command:

Router# show tunnel 6rd destination 2001:B000:300:: tunnel 1
 
Interface: Tunnel1 
6RD Prefix: 2001:B000:300:: 
Destination: 10.1.3.1.
Table 44 show tunnel 6rd destination Field Descriptions

Field

Description

Interface Tunnel1:

The specified tunnel interface and number.

6RD Prefix

The specified 6RD IPv6 prefix.

Destination: 10.1.3.1

The corresponding IPv4 destination.

Related Commands

Command

Description

tunnel 6rd prefix

Specifies the common IPv6 prefix on IPv6 6RD tunnels.

tunnel mode ipv6ip

Configures a static IPv6 tunnel interface.

tunnel source

Sets the source address for a tunnel interface.

show tunnel 6rd prefix

To translate an IPv4 destination address to the corresponding IPv6 6RD prefix, use the show tunnel 6rd prefix command in privileged EXEC mode.

show tunnel 6rd prefix ipv4-destination tunnel-interface interface-number

Syntax Description

ipv4-destination

The IPv4 destination address.

tunnel-interface interface-number

Specifies a tunnel interface and number.

Command Modes


Privileged EXEC

Command History

Release

Modification

Cisco IOS XE Release 3.1S

This command was introduced.

Usage Guidelines

The show tunnel 6rd prefix command translates an IPv4 destination address to the corresponding IPv6 6RD prefix. The command output displays the 6rd prefix.

Examples

The following is sample output from the show tunnel 6rd prefix command:

Router# show tunnel 6rd prefix 10.1.3.1 tunnel 0
 
Interface: Tunnel0
Destination: 10.1.3.1
6RD Prefix: 2001:B000:300::

The table below describes the significant fields shown in the display.

Table 45 show tunnel 6rd prefix Field Descriptions

Field

Description

Interface Tunnel0:

The specified tunnel interface and number.

Destination: 10.1.3.1

The IPv4 destination address.

6RD Prefix: 2001:B000:300::

The corresponding 6RD prefix.

Related Commands

Command

Description

tunnel 6rd prefix

Specifies the common IPv6 prefix on IPv6 6RD tunnels.

tunnel mode ipv6ip

Configures a static IPv6 tunnel interface.

tunnel source

Sets the source address for a tunnel interface.

sip address

To configure a Session Initiation Protocol (SIP) server IPv6 address to be returned in the SIP server’s IPv6 address list option to clients, use the sip addresscommand in DHCP for IPv6 pool configuration mode. To disable this feature, use the no form of this command.

sip address ipv6-address

no sip address ipv6-address

Syntax Description

ipv6-address

An IPv6 address. The ipv6-address argument must be in the form documented in RFC 2373 where the address is specified in hexadecimal using 16-bit values between colons.

Command Default

No default behavior or values

Command Modes


DHCP for IPv6 pool configuration

Command History

Release

Modification

12.3(14)T

This command was introduced.

12.2(18)SXE

This command was integrated into Cisco IOS Release 12.2(18)SXE.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

Cisco IOS XE Release 2.5

This command was updated. It was integrated into Cisco IOS XE Release 2.5.

Usage Guidelines

For the Dynamic Host Configuration Protocol (DHCP) for IPv6 server to obtain prefixes from RADIUS servers, the user must also configure the authorization, authentication, and accounting (AAA) client and PPP on the router. For information on how to configure the AAA client and PPP, see the "Implementing ADSL and Deploying Dial Access for IPv6" module.

The sip address command configures a SIP server IPv6 address to be returned in the SIP server’s IPv6 address list option to clients. To configure multiple SIP server addresses, issue this command multiple times. The new addresses will not overwrite old ones.

Examples

In the following example, the SIP server IPv6 address 2001:0db8::2 is configured to be returned in the SIP server’s IPv6 address list option to clients:

sip address 2001:0DB8::2

Related Commands

Command

Description

prefix-delegation aaa

Specifies that prefixes are to be acquired from AAA servers.

sip domain-name

Configures an SIP server domain name to be returned in the SIP server’s domain name list option to clients.

sip domain-name

To configure a Session Initiation Protocol (SIP) server domain name to be returned in the SIP server’s domain name list option to clients, use the sip domain-namecommand in DHCP for IPv6 pool configuration mode. To disable this feature, use the no form of this command.

sip domain-name domain-name

no sip domain-name domain-name

Syntax Description

domain-name

A domain name for a DHCP for IPv6 client.

Command Default

No default behavior or values.

Command Modes


DHCP for IPv6 pool configuration

Command History

Release

Modification

12.3(14)T

This command was introduced.

12.2(18)SXE

This command was integrated into Cisco IOS Release 12.2(18)SXE.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

Cisco IOS XE Release 2.5

This command was updated. It was integrated into Cisco IOS XE Release 2.5.

Usage Guidelines

In order for the Dynamic Host Configuration Protocol (DHCP) for IPv6 server to obtain prefixes from RADIUS servers, the user must also configure the authorization, authentication, and accounting (AAA) client and PPP on the router. For information on how to configure the AAA client and PPP, see the "Implementing ADSL and Deploying Dial Access for IPv6" module.

The sip domain-name command configures a SIP server domain name to be returned in the SIP server’s domain name list option to clients. To configure multiple SIP server domain names, issue this command multiple times. The new domain names will not overwrite old ones.

Examples

The following example configures the SIP server domain name sip1.cisco.com to be returned in the SIP server’s domain name list option to clients:

sip domain-name sip1.cisco.com

Related Commands

Command

Description

prefix-delegation aaa

Specifies that prefixes are to be acquired from AAA servers.

sip address

Configures a SIP server IPv6 address to be returned in the SIP server’s IPv6 address list option to clients.