Table Of Contents

show ipv6 rip

show ipv6 route

show ipv6 route summary

show ipv6 route vrf

show ipv6 routers

show ipv6 rpf

show ipv6 spd

show ipv6 static

show ipv6 traffic

show ipv6 tunnel

show ipv6 virtual-reassembly

show isis database

show isis ipv6 rib

show isis spf-log

show isis topology

show mls cef ipv6

show monitor event-trace cef ipv6

show monitor event-trace vpn-mapper

show mpls forwarding-table

show ntp associations

show ntp status

show platform software ipv6-multicast

show platform software vpn

show sccp

show sip-ua calls

show sip-ua connections

show sip-ua status

show standby

show stcapp device

show trace multilink

show voip rtp connections

show vrf

shutdown (gateway)

sip address

sip domain-name

sip-server

snmp-server community

snmp-server engineID remote

snmp-server group

snmp-server host

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.

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 will be displayed.
database	(Optional) Details of the entries in the specified RIP IPv6 routing table are displayed.
next-hops	(Optional) Details of the specified RIP IPv6 processes next hop addresses are displayed. If no RIP process name is specified, the next hop addresses for all RIP IPv6 processes will be 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 12.2(22)S, and the name argument and the database and next-hops keywords were added.
12.2(13)T	The modifications to add the name argument and the database and next-hops keywords were added.
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.
Cisco IOS XE Release 2.1	This command was introduced on Cisco ASR 1000 Series Routers.

Examples

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

Router# 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:

Table 236 describes the significant fields shown in the display.

Table 236 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.

To display information about a specified IPv6 RIP process database, enter the show ipv6 rip command with the name argument and the database keyword. In the following output for the IPv6 RIP process named one, timer information is displayed, and route 3004::/64 has a route tag set:

Router# show ipv6 rip one database

RIP process "one", local RIB

 2001:72D:1000::/64, metric 2

     Ethernet2/FE80::202:7DFF:FE1A:9472, expires in 168 secs

 2001:72D:2000::/64, metric 2, installed

     Ethernet2/FE80::202:7DFF:FE1A:9472, expires in 168 secs

 2001:72D:3000::/64, metric 2, installed

     Ethernet2/FE80::202:7DFF:FE1A:9472, expires in 168 secs

     Ethernet1/FE80::203:7EBC:FE23:1000, expires in 120 secs

 2001:72D:4000::/64, metric 16, expired, [advertise 119/hold 0]

     Ethernet2/FE80::202:7DFF:FE1A:9472

 3004::/64, metric 2 tag 2A, installed

     Ethernet2/FE80::202:7DFF:FE1A:9472, expires in 168 secs

Table 237 describes the significant fields shown in the display.

Table 237 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/FE80::202:7DFF:FE1A:9472	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.

To display information about the next-hops for a specified IPv6 RIP process, enter the show ipv6 rip command with the name argument and the next-hops keyword:

Router# 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]

Table 238 describes the significant fields shown in the display.

Table 238 show ipv6 rip next-hops Field Descriptions 

Field	Description
RIP process	The name of the RIP process.
FE80::210:7BFF:FEC2:ACCF/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.

show ipv6 route

To display the current 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 | protocol | interface-type interface-number]

Syntax Description

ipv6-address	(Optional) Displays 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) Displays 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.
protocol	(Optional) Displays routes for the specified routing protocol using any of these keywords: bgp, isis, ospf, or rip; or displays routes for the specified type of route using any of these keywords: connected, local, static, or the interface keyword for a specific interface.
interface-type	(Optional) Interface type. For more information about supported interface types, use the question mark (?) online help function.
interface-number	(Optional) Interface number. For more information about the numbering syntax for supported interface types, use the question mark (?) online help function.

Command Default

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	The isis protocol keyword was added to the command syntax, and the I1 - ISIS L1, I2 - ISIS L2, and IA - ISIS interarea fields were added to 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 MPLS virtual interfaces.
12.2(13)T	This command was integrated into Cisco IOS Release 12.2(13)T, the timer information was removed, and an indicator was added to display IPv6 MPLS virtual interfaces.
12.2(14)S	This command was integrated into Cisco IOS Release 12.2(14)S and support for longer prefixes was added.
12.3	The output display for this command was updated to include all possible options.
12.2(25)S	6PE multipath information was added to the display.
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 introduced on Cisco ASR 1000 Series Routers.

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, a 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, or static keyword is specified, only that type of route is displayed. When the interface-type interface-number arguments are specified, only the specified interface-specific routes are displayed.

Examples

show ipv6 route Command with No Keyword Specified Example

The following is sample output from the show ipv6 route command when entered without an IPv6 address or prefix specified:

Router# 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   3000::/64 [20/0]

     via FE80::A8BB:CCFF:FE02:8B00, Serial6/0

L   4000::2/128 [0/0]

     via ::, Ethernet1/0

C   4000::/64 [0/0]

     via ::, Ethernet1/0

LC  4001::1/128 [0/0]

     via ::, Loopback0

L   5000::2/128 [0/0]

     via ::, Serial6/0

C   5000::/64 [0/0]

     via ::, Serial6/0

S   5432::/48 [1/0]

     via 4000::1, Null

L   FE80::/10 [0/0]

     via ::, Null0

L   FF00::/8 [0/0]

     via ::, Null0

Table 239 describes the significant fields shown in the display.

Table 239 show ipv6 route 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
2001:0DB8:DDDD::/32	Indicates the IPv6 prefix of the remote network.
[200/0]	The first number in the brackets is the administrative distance of the information source; the second number is the metric for the route.
via ::FFFF:192.168.99.70	Specifies the address of the next router to the remote network.
IPv6-mpls	Specifies the interface through which the next router to the specified network can be reached. Note In this example output, the interface is the IPv6 Multiprotocol Label Switching (MPLS) virtual interface used in the 6PE feature where IPv6 traffic is sent across an IPv4 MPLS backbone from one IPv6 provider edge router to another.

show ipv6 route Command with Address or Prefix Specified Example

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 entered with the IPv6 prefix 2001:200::/35:

Router# show ipv6 route 2001:200::/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 2001:200::/35 [20/3]

  via FE80::60:5C59:9E00:16, Tunnel1

show ipv6 route Command with Protocol Specified Example

When you specify a protocol, only routes for that particular routing protocol are shown. The following is sample output from the show ipv6 route command when entered with the bgp keyword:

Router# 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   3000::/64 [20/0]

     via FE80::A8BB:CCFF:FE02:8B00, Serial6/0

show ipv6 route Command for Local Routes Example

The following is sample output from the show ipv6 route command when entered with the local router address:

Router# 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   4000::2/128 [0/0]

     via ::, Ethernet1/0

LC  4001::1/128 [0/0]

     via ::, Loopback0

L   5000::2/128 [0/0]

     via ::, Serial6/0

L   FE80::/10 [0/0]

     via ::, Null0

L   FF00::/8 [0/0]

     via ::, Null0

show ipv6 route Command for 6PE Multipath Example'

The following is sample output from the show ipv6 route command when used with the 6PE multipath feature enabled:

Router# 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   4004::/64 [200/0]

     via ::FFFF:172.11.11.1

     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 summary

To display the current contents of the IPv6 routing table in summary format, use the show ipv6 route summary command 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 

Table 240 describes the significant fields shown in the display.

Table 240 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 the IPv6 routing table associated with a Virtual Private Network (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}

Syntax Description

vrf-name	Name assigned to the VRF.
vrf-number	Hexadecimal number assigned to the VRF.

Command Modes

User EXEC
Privileged EXEC

Command History

Release	Modification
12.2(33)SRB	This command was introduced.
12.2(33)SRB1	This command was integrated into Cisco IOS Release 12.2(33)SRB1.
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

The show ipv6 route vrf command displays specified information from the IPv6 routing table of a VRF.

Examples

The following is sample output regarding an IPv6 routing table associated with a VRF named cisco1:

Router# show ipv6 route vrf cisco1

IPv6 Routing Table cisco1 - 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   2001:8::/64 [0/0]

     via ::, FastEthernet0/0

L   2001:8::3/128 [0/0]

     via ::, FastEthernet0/0

B   2002:8::/64 [200/0]

     via ::FFFF:192.168.1.4,

B   2010::/64 [20/1]

     via 2001:8::1,

C   2012::/64 [0/0]

     via ::, Loopback1

L   2012::1/128 [0/0]

     via ::, Loopback1

Table 241 describes the significant fields shown in the display.

Table 241 show ipv6 route vrf Field Descriptions 

Field	Description
2001:8::/64 [0/0]	Network number.
via ::, FastEthernet0/0	Indicates how the route was derived.

show ipv6 routers

To display IPv6 router advertisement information received from onlink routers, use the show ipv6 routers command in user EXEC or privileged EXEC mode.

show ipv6 routers [interface-type interface-number] [conflicts]

Syntax Description

interface-type	(Optional) Specifies the interface type.
interface-number	(Optional) Specifies the interface number.
conflicts	(Optional) Displays router advertisements that differ from the advertisements configured for a specified interface.

Command Default

When an interface is not specified, onlink router advertisement information is displayed for all interface types. (The term onlink 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 routers.
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

Routers advertising parameters that differ from the advertisement parameters configured for the interface on which the advertisements 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:

Router# show ipv6 routers

Router 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

Router 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 router that is advertising a high default router preference and is indicating that it is functioning as a Mobile IPv6 home agent on this link.

Router# show ipv6 routers

Router 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

Table 242 describes the significant fields shown in the previous two displays.

Table 242 show ipv6 routers Field Descriptions

Field	Description
Hops	The configured hop limit value for the router advertisement.
Lifetime	The configured Router Lifetime value for the router advertisement. A value of 0 indicates that the router is not a default router. A value other than 0 indicates that the router is a default router.
AddrFlag	If the value is 0, the router advertisement received from the router 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 router advertisement received from the router 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 router from which the RouterAdvertisement 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 default router preference. The value 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 router.
Prefix	A prefix advertised by the router. Also indicates if onlink or autoconfig bits were set in the router advertisement 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 onlink 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, router advertisement 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:

Router# show ipv6 routers tunnel 5

Router 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 routers 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:

Router# show ipv6 routers conflicts

Router 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

Router 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

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 ipv6-prefix

Syntax Description

ipv6-prefix

Summary prefix designated for a range of IPv6 prefixes. The ipv6-prefix argument must be in the form documented in RFC 2373 where the address is specified in hexadecimal using 16-bit values between colons.

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.

Usage Guidelines

The show ipv6 rpf command displays how IPv6 multicast routing performs 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 rpf command displays 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

Table 243 describes the significant fields shown in the display.

Table 243 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 spd

To display the IPv6 Selective Packet Discard (SPD) configuration, use the show ipv6 spd command 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.

Usage Guidelines

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

Examples

The following example displays the IPv6 SPD configuration on the router:

Router# show ipv6 spd

Current mode: normal

Queue max threshold: 74, Headroom: 100, Extended Headroom: 10

IPv6 packet queue: 0

Table 244 describes the significant fields shown in the display.

.

Table 244 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] [vrf vrf-name] [bfd] [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.
vrf vrf-name	(Optional) Name of the virtual routing and forwarding (VRF) instance associated with a static route.
bfd	(Optional) Displays static Bidirectional Forwarding Detection for IPv6 (BFDv6) neighbors and associated static routes.
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	The vrf vrf-name keyword and argument and the bfd keyword were added.

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

show ipv6 static Command with No Options Specified in the Command Syntax Example

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

Table 245 describes the significant fields shown in the display.

Table 245 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.

show ipv6 static Command with the IPv6 Address and Prefix Example

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

show ipv6 static interface Command Example

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

show ipv6 static recursive Command Example

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

show ipv6 static detail Command Example

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

The following example will display all IPv6 static BFD neighbors and each neighbor's associated static routes:

Router# show ipv6 static vrf vrf1 bfd 

Related Commands

Command	Description
ipv6 route	Establishes a static IPv6 route.
ipv6 route static bfd	Specifies static route BFDv6 neighbors.
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 traffic command 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 routers.

Usage Guidelines

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

Examples

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

Router# 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 router

         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 router solicit, 0 router advert, 0 redirects

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

Router# 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:

Router# 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.

Table 246 describes the significant fields shown in the display.

Table 246 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 router	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

---

Note Effective with Cisco IOS Release 15.0(1)M, the show ipv6 tunnel command is not available in Cisco IOS software.

---

To display IPv6 tunnel information, use the show ipv6 tunnel command 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.

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 tunnel command:

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

Table 247 describes the significant fields shown in the display.

Table 247 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 view configuration and statistical information of Virtual Fragment Reassembly (VFR), 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.

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 interface e1/1

Configuration Information:

---------------------------------

Virtual Fragment Reassembly (VFR) is ENABLED...

Maximum number of datagram that can be reassembled at a time: 64

Maximum number of fragments per datagram: 8

Timeout value of a datagram: 3 seconds

Statistical Information:

----------------------------

Number of datagram being reassembled:12

Number of fragments being processed:48

Total number of datagram reassembled:6950

Total number of datagram failed: 9

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

Related CommandsThe

Command	Description
ipv6 virtual-reassembly	Enables VFR on an interface.

show isis database

To display the Intermediate System-to-Intermediate System (IS-IS) link-state database, use the show isis database command in user EXEC or privileged EXEC mode.

show isis [process-tag] database [level-1] [level-2] [l1] [l2] [detail] [lspid]

Syntax Description

process-tag	(Optional) A unique name among all International Organization for Standardization (ISO) router processes including IP and Connectionless Network Service (CLNS) router processes for a given router. If a process tag is specified, output is limited to the specified routing process. When null is specified for the process tag, output is displayed only for the router process that has no tag specified. If a process tag is not specified, output is displayed for all processes.
level-1	(Optional) Displays the IS-IS link-state database for Level 1.
level-2	(Optional) Displays the IS-IS link-state database for Level 2.
l1	(Optional) Abbreviation for the level-1 option.
l2	(Optional) Abbreviation for the level-2 option.
detail	(Optional) Displays the contents of each link-state packet (LSP). Otherwise, a summary display is provided.
lspid	(Optional) Displays the link-state protocol data unit (PDU) identifier. Displays the contents of a single LSP by its ID number.

Command Modes

User EXEC
Privileged EXEC

Command History

Release	Modification
10.0	This command was introduced.
12.2(15)T	Support was added for IPv6.
12.2(18)S	This command was integrated into Cisco IOS Release 12.2(18)S.
12.0(26)S	This command was integrated into Cisco IOS Release 12.0(26)S.
12.0(29)S	The process-tag argument 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 2.4	This command was introduced on Cisco ASR 1000 Series Routers.

Usage Guidelines

The order of the optional argument and keywords is not important when this command is entered. For example, the following are both valid command specifications and provide the same output: show isis database detail l2 and show isis database l2 detail.

Examples

The following is sample output from the show isis database command:

Router# show isis database

IS-IS Level-1 Link State Database

LSPID                 LSP Seq Num    LSP Checksum  LSP Holdtime  ATT/P/OL

0000.0C00.0C35.00-00  0x0000000C     0x5696        792           0/0/0

0000.0C00.40AF.00-00* 0x00000009     0x8452        1077          1/0/0

0000.0C00.62E6.00-00  0x0000000A     0x38E7        383           0/0/0

0000.0C00.62E6.03-00  0x00000006     0x82BC        384           0/0/0

0800.2B16.24EA.00-00  0x00001D9F     0x8864        1188          1/0/0

0800.2B16.24EA.01-00  0x00001E36     0x0935        1198          1/0/0

IS-IS Level-2 Link State Database

LSPID                 LSP Seq Num    LSP Checksum  LSP Holdtime  ATT/P/OL

0000.0C00.0C35.03-00  0x00000005     0x04C8        792           0/0/0

0000.0C00.3E51.00-00  0x00000007     0xAF96        758           0/0/0

0000.0C00.40AF.00-00* 0x0000000A     0x3AA9        1077          0/0/0

The following is sample output from the show isis database command using the process-tag argument to display information about a VPN routing and forwarding instance (VRF)-aware IS-IS instance tagFirst:

Router# show isis tagFirst database level-2

Tag tagFirst:

IS-IS Level-2 Link State Database:

LSPID                 LSP Seq Num    LSP Checksum  LSP Holdtime  ATT/P/OL

igp-01.00-00          0x0000000A     0x5E73        914           0/0/0

igp-01.03-00          0x00000001     0x8E41        894           0/0/0

igp-01.04-00          0x00000001     0x8747        894           0/0/0

igp-03.00-00        * 0x00000005     0x55AD        727           0/0/0

igp-03.02-00        * 0x00000001     0x3B97        727           0/0/0

igp-02.00-0           0x00000004     0xC1FB        993           0/0/0

igp-02.01-00          0x00000001     0x448D        814           0/0/0

igp-04.00-00          0x00000004     0x76D0        892           0/0/0

Table 248 describes the significant fields shown in the display.

.

Table 248 show isis database Field Descriptions 

Field	Description
Tag tagFirst	Tag name that identifies an IS-IS instance.
LSPID	The LSP identifier. The first six octets form the system ID of the router that originated the LSP. The next octet is the pseudonode ID. When this byte is zero, the LSP describes links from the system. When it is nonzero, the LSP is a so-called nonpseudonode LSP. This is similar to a router link-state advertisement (LSA) in the Open Shortest Path First (OSPF) protocol. The LSP will describe the state of the originating router. For each LAN, the designated router for that LAN will create and flood a pseudonode LSP, describing all systems attached to that LAN. The last octet is the LSP number. If there is more data than can fit in a single LSP, the LSP will be divided into multiple LSP fragments. Each fragment will have a different LSP number. An asterisk (*) indicates that the LSP was originated by the system on which this command is issued.
LSP Seq Num	Sequence number for the LSP that allows other systems to determine if they have received the latest information from the source.
LSP Checksum	Checksum of the entire LSP packet.
LSP Holdtime	Amount of time the LSP remains valid (in seconds). An LSP hold time of zero indicates that this LSP was purged and is being removed from the link-state database (LSDB) of all routers. The value indicates how long the purged LSP will stay in the LSDB before being completely removed.
ATT	The Attach bit. This bit indicates that the router is also a Level 2 router, and it can reach other areas. Level 1-only routers and Level 1-2 routers that have lost connection to other Level 2 routers will use the Attach bit to find the closest Level 2 router. They will point a default route to the closest Level 2 router.
P	The P bit. Detects if the intermediate systems is area partition repair-capable. Cisco and other vendors do not support area partition repair.
OL	The Overload bit. Determines if the IS is congested. If the Overload bit is set, other routers will not use this system as a transit router when calculating routers. Only packets for destinations directly connected to the overloaded router will be sent to this router.

The following is sample output from the show isis database detail command:

Router# show isis database detail

IS-IS Level-1 Link State Database

LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT/P/OL

0000.0C00.0C35.00-00  0x0000000C   0x5696        325           0/0/0

  Area Address: 47.0004.004D.0001

  Area Address: 39.0001

  Metric: 10   IS 0000.0C00.62E6.03

  Metric: 0    ES 0000.0C00.0C35

0000.0C00.40AF.00-00* 0x00000009   0x8452        608           1/0/0

  Area Address: 47.0004.004D.0001

  Topology: IPv4 (0x0) IPv6 (0x2)

  NLPID: 0xCC 0x8E

  IP Address: 172.16.21.49

  Metric: 10   IS 0800.2B16.24EA.01

  Metric: 10   IS 0000.0C00.62E6.03

  Metric: 0    ES 0000.0C00.40AF

  IPv6 Address: 2001:0DB8::/32

  Metric: 10   IPv6 (MT-IPv6) 2001:0DB8::/64

  Metric: 5    IS-Extended cisco.03

  Metric: 10   IS-Extended cisco1.03

  Metric: 10    IS (MT-IPv6) cisco.03

As the output shows, in addition to the information displayed with the show isis database command, the show isis database detail command displays the contents of each LSP.

Table 249 describes the significant fields shown in the display.

.

Table 249 show isis database detail Field Descriptions 

Field	Description
Area Address	Reachable area addresses from the router. For Level 1 LSPs, these are the area addresses configured manually on the originating router. For Level 2 LSPs, these are all the area addresses for the area to which this route belongs.
Metric	IS-IS metric for the cost of the adjacency between the originating router and the advertised neighbor, or the metric of the cost to get from the advertising router to the advertised destination (which can be an IP address, an end system [ES], or a CLNS prefix).
Topology	States the topology supported (for example, IPv4, IPv6).
IPv6 Address	The IPv6 address.
MT-IPv6	Advertised using multitopology Type, Length, and Value objects (TLVs).

The following is additional sample output from the show isis database detail command. This LSP is a Level 2 LSP. The area address 39.0001 is the address of the area in which the router resides.

Router# show isis database 12 detail

IS-IS Level-2 Link State Database

LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT/P/OL

0000.0C00.1111.00-00* 0x00000006   0x4DB3        1194          0/0/0

  Area Address: 39.0001

  NLPID:       0x81 0xCC

  IP Address:  172.16.64.17

  Metric: 10   IS 0000.0C00.1111.09

  Metric: 10   IS 0000.0C00.1111.08

  Metric: 10   IP 172.16.65.0 255.255.255.0

show isis ipv6 rib

To display the 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 where the address is specified in hexadecimal using 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 2.4	This command was introduced on Cisco ASR 1000 Series Routers.

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 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.

Router# show isis ipv6 rib 

IS-IS IPv6 process "", local RIB

  88:1::/64

    via FE80::210:7BFF:FEC2:ACC9/Ethernet2/0, type L2  metric 20 LSP [3/7]

    via FE80::210:7BFF:FEC2:ACCC/Ethernet2/1, type L2  metric 20 LSP [3/7]

* 1357:1::/64

    via FE80::202:7DFF:FE1A:9471/Ethernet2/1, type L2  metric 10 LSP [4/9]

* 2001:45A::/64

    via FE80::210:7BFF:FEC2:ACC9/Ethernet2/0, type L1  metric 20 LSP [C/6]

    via FE80::210:7BFF:FEC2:ACCC/Ethernet2/1, type L1  metric 20 LSP [C/6]

    via FE80::210:7BFF:FEC2:ACC9/Ethernet2/0, type L2  metric 20 LSP [3/7]

    via FE80::210:7BFF:FEC2:ACCC/Ethernet2/1, type L2  metric 20 LSP [3/7]

Table 250 describes the significant fields shown in the display.

Table 250 show isis ipv6 rib Field Descriptions 

Field	Description
*	Prefixes that have been installed in the master IPv6 RIB as IS-IS routes.
type	Type of path: •L1—Level 1 •L2—Level 2 •IA—Inter-area •Sum—Summary
LSP [3/7]	Link-state packet (LSP). The numbers following LSP indicate the LSP index and LSP version, respectively.

show isis spf-log

To display how often and why the router has run a full shortest path first (SPF) calculation, use the show isis spf-log user command in user EXEC or privileged EXEC mode.

show isis [area-tag] [ipv6 | *] spf-log

Syntax Description

area-tag	(Optional) Required for multiarea Intermediate System-to-Intermediate System (IS-IS) configuration. Optional for conventional IS-IS configuration. Meaningful name for a routing process. This name must be unique among all IP or Connectionless Network Service (CLNS) router processes for a given router. If an area tag is not specified, a null tag is assumed and the process is referenced with a null tag. If an area tag is specified, output is limited to the specified area.
ipv6	(Optional) Displays IS-IS multitopology for IPv6 SPF log.
*	(Optional) Displays the SPF logs of all address families.

Command Modes

User EXEC
Privileged EXEC

Command History

Release	Modification
10.0	This command was introduced.
12.2(15)T	Support was added for IPv6.
12.2(18)S	This command was integrated into Cisco IOS Release 12.2(18)S.
12.0(26)S	This command was integrated into Cisco IOS Release 12.0(26)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 2.4	This command was introduced on Cisco ASR 1000 Series Routers.

Examples

The following is sample output from the show isis spf-log command with the optional ipv6 keyword:

Router# show isis ipv6 spf-log

                   IPv6 Level 1 SPF log

  When   Duration  Nodes  Count     Last trigger LSP   Triggers

00:15:46    3124     40      1          milles.00-00  TLVCODE

00:15:24    3216     41      5          milles.00-00  TLVCODE NEWLSP

00:15:19    3096     41      1          deurze.00-00  TLVCODE

00:14:54    3004     41      2          milles.00-00  ATTACHFLAG LSPHEADER

00:14:49    3384     41      1          milles.00-01  TLVCODE

00:14:23    2932     41      3          milles.00-00  TLVCODE

00:05:18    3140     41      1                        PERIODIC

00:03:54    3144     41      1          milles.01-00  TLVCODE

00:03:49    2908     41      1          milles.01-00  TLVCODE

00:03:28    3148     41      3           bakel.00-00  TLVCODE TLVCONTENT

00:03:15    3054     41      1          milles.00-00  TLVCODE

00:02:53    2958     41      1          mortel.00-00  TLVCODE

00:02:48    3632     41      2          milles.00-00  NEWADJ TLVCODE

00:02:23    2988     41      1          milles.00-01  TLVCODE

00:02:18    3016     41      1          gemert.00-00  TLVCODE

00:02:14    2932     41      1           bakel.00-00  TLVCONTENT

00:02:09    2988     41      2           bakel.00-00  TLVCONTENT

00:01:54    3228     41      1          milles.00-00  TLVCODE

00:01:38    3120     41      3            rips.03-00  TLVCONTENT

Table 251 describes the significant fields shown in the display.

Table 251 show isis spf-log Field Descriptions 

Field	Description
When	How long ago (in hours: minutes: seconds) a full SPF calculation occurred. The last 20 occurrences are logged.
Duration	Number of milliseconds required to complete this SPF run. Elapsed time is wall clock time, not CPU time.
Nodes	Number of routers and pseudonodes (LANs) that make up the topology calculated in this SPF run.
Count	Number of events that triggered this SPF run. When there is a topology change, often multiple link-state packets (LSPs) are received in a short time. A router waits 5 seconds before running a full SPF run, so it can include all new information. This count denotes the number of events (such as receiving new LSPs) that occurred while the router was waiting its 5 seconds before running full SPF.
Last trigger LSP	Whenever a full SPF calculation is triggered by the arrival of a new LSP, the router stores the LSP ID. The LSP ID can provide a clue as to the source of routing instability in an area. If multiple LSPs are causing an SPF run, only the LSP ID of the last received LSP is remembered.
Triggers	A list of all reasons that triggered a full SPF calculation. For a list of possible triggers, see Table 29.

Table 252 lists possible triggers of a full SPF calculation.

Table 252 Possible Triggers of Full SPF Calculation 

Trigger	Description
ATTACHFLAG	This router is now attached to the Level 2 backbone or it has just lost contact to the Level 2 backbone.
ADMINDIST	Another administrative distance was configured for the IS-IS process on this router.
AREASET	Set of learned area addresses in this area changed.
BACKUPOVFL	An IP prefix disappeared. The router knows there is another way to reach that prefix but has not stored that backup route. The only way to find the alternative route is through a full SPF run.
DBCHANGED	A clear isis * command was issued on this router.
IPBACKUP	An IP route disappeared, which was not learned via IS-IS, but via another protocol with better administrative distance. IS-IS will run a full SPF to install an IS-IS route for the disappeared IP prefix.
IPQUERY	A clear ip route command was issued on this router.
LSPEXPIRED	Some LSP in the link-state database (LSDB) has expired.
LSPHEADER	ATT/P/OL bits or is-type in an LSP header changed.
NEWADJ	This router has created a new adjacency to another router.
NEWAREA	A new area (via network entity title [NET]) was configured on this router.
NEWLEVEL	A new level (via is-type) was configured on this router.
NEWLSP	A new router or pseudonode appeared in the topology.
NEWMETRIC	A new metric was configured on an interface of this router.
NEWSYSID	A new system ID (via NET) was configured on this router.
PERIODIC	Typically, every 15 minutes a router runs a periodic full SPF calculation.
RTCLEARED	A clear clns route command was issued on this router.
TLVCODE	TLV code mismatch, indicating that different TLVs are included in the newest version of an LSP.
TLVCONTENT	TLV contents changed. This normally indicates that an adjacency somewhere in the area has come up or gone down. The "Last trigger LSP" column indicates where the instability may have occurred.

show isis topology

To display a list of all connected routers in all areas, use the show isis topology command in user EXEC or privileged EXEC mode.

show isis [process-tag] [ipv6 | *] topology

Syntax Description

process-tag	(Optional) A unique name among all International Organization for Standardization (ISO) router processes including IP and Connectionless Network Service (CLNS) router processes for a given router. If a process tag is specified, output is limited to the specified routing process. When null is specified for the process tag, output is displayed only for the router process that has no tag specified. If a process tag is not specified, output is displayed for all processes.
ipv6	(Optional) Displays Intermediate System-to-Intermediate System (IS-IS) IPv6 topology.
*	(Optional) Displays the topology of all address families.

Command Modes

User EXEC
Privileged EXEC

Command History

Release	Modification
12.0(5)T	This command was introduced.
12.2(15)T	Support was added for IPv6.
12.2(18)S	This command was integrated into Cisco IOS Release 12.2(18)S.
12.0(26)S	This command was integrated into Cisco IOS Release 12.0(26)S.
12.0(29)S	The process-tag argument 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 2.4	This command was introduced on Cisco ASR 1000 Series Routers.

Usage Guidelines

Use the show isis topology EXEC command to verify the presence and connectivity between all routers in all areas.

Examples

The following example shows output from the show isis topology command using the optional ipv6 keyword. The command shown is used in a dual CLNS-IP network:

Router# show isis ipv6 topology

Tag L2BB:

IS-IS IPv6 paths to level-1 routers

System Id       Metric  Next-Hop        Interface       SNPA

0000.0000.0005 --

0000.0000.0009  10      0000.0000.0009  Tu529           *Tunnel*        

0000.0000.0017  20      0000.0000.0009  Tu529           *Tunnel*        

0000.0000.0053  30      0000.0000.0009  Tu529           *Tunnel*        

0000.0000.0068  20      0000.0000.0009  Tu529           *Tunnel*        

IS-IS paths to level-2 routers

System Id       Metric  Next-Hop        Interface       SNPA

0000.0000.0005  --

0000.0000.0009  10      0000.0000.0009  Tu529           *Tunnel*        

0000.0000.0017  20      0000.0000.0009  Tu529           *Tunnel*        

0000.0000.0053  30      0000.0000.0009  Tu529           *Tunnel*        

0000.0000.0068  20      0000.0000.0009  Tu529           *Tunnel* 

Tag A3253-01:

IS-IS paths to level-1 routers

System Id       Metric  Next-Hop        Interface       SNPA

0000.0000.0003  10      0000.0000.0003  Et1             0000.0c03.6944  

0000.0000.0005  --

0000.0000.0053  10      0000.0000.0053  Et1             0060.3e58.ccdb  

Tag A3253-02:

IS-IS paths to level-1 routers

System Id       Metric  Next-Hop        Interface       SNPA

0000.0000.0002  10      0000.0000.0002  Et2             0000.0c03.6bc5  

0000.0000.0005  --

0000.0000.0053  10      0000.0000.0053  Et2             0060.3e58.ccde 

Table 253 describes the significant fields shown in the display.

Table 253 show isis topology Field Descriptions 

Field	Description
Tag	Identifies the routing process.
System Id	Six-byte value that identifies a system in an area.
Metric	IS-IS metric for the cost of the adjacency between the originating router and the advertised neighbor, or the metric of the cost to get from the advertising router to the advertised destination (which can be an IP address, an end system [ES], or a CLNS prefix).
Next-Hop	The address of the next hop router.
Interface	Interface from which the system was learned.
SNPA	Subnetwork point of attachment. This is the data-link address.

show mls cef ipv6

To display the hardware IPv6-switching table entries, use the show mls cef ipv6 command in privileged EXEC mode.

show mls cef ipv6 [vrf vrf-name] [ip-address/mask] [accounting per-prefix] [module number]

show mls cef ipv6 exact-route src-addr [L4-src-port] dst-addr [L4-dst-port]

show mls cef ipv6 multicast tcam [v6mcast-address] [detail] [internal]

Syntax Description

vrf	(Optional) IPv6 Virtual Private Network (VPN) routing and forwarding (VRF) instance.
vrf-name	(Optional) VRF name.
ip-address/mask	(Optional) Entry IPv6 address and prefix mask. Valid values for the mask argument are from 0 through 128.
accounting per-prefix	(Optional) Displays per-prefix accounting statistics.
module number	(Optional) Displays the entries for a specific module.
exact-route	Provides the exact route of IPv6-switching table entries.
src-addr	Source IP address.
L4-src-port	(Optional) Layer 4-source port number; valid values are from 0 to 65535.
dst-addr	Destination IP address.
L4-dst-port	(Optional) Layer 4-destination port number; valid values are from 0 to 65535.
multicast tcam	Displays IPv6-multicast entries.
v6mcast-address	(Optional) IPv6-multicast address.
detail	(Optional) Displays detailed hardware information.
internal	(Optional) Displays internal hardware information.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(17a)SX	This command was introduced on the Supervisor Engine 720.
12.2(17b)SXA	The output was changed to display multicast protocol information in the Forwarding Information Base (FIB) driver.
12.2(33)SRA	This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(33)SRB1	This command was integrated into Cisco IOS Release 12.2(33)SRB1.

Usage Guidelines

This command is not supported on Cisco 7600 series routers that are configured with a Supervisor Engine 2.

You can enter this command on the supervisor engine and Multilayer Switching (MLS)-hardware Layer 3-switching module consoles only. Enter the remote login command to enter a session into the supervisor engine and distributed forwarding card (DFC)-equipped module to enter the commands.

When entering the ip-address/mask argument, use this format, X:X:X:X::X/mask, where valid values for mask are from 0 to 128.

Up to 64 IPv6 prefixes are supported.

You must enter the L4-src-port and L4-dst-port arguments when the load-sharing mode is set to full, for example, when Layer 4 ports are included in the load-sharing hashing algorithm.

Examples

This example shows how to display the hardware IPv6-switching table entries:

Router# show mls cef ipv6

Codes:M-MPLS encap, + - Push label 

Index Prefix Adjacency 

524384 BEEF:6::6/128 punt 

524386 5200::6/128 punt 

524388 2929::6/128 punt 

524390 6363::30/128 Fa1/48 , 0000.0001.0002 

524392 3FFE:1B00:1:1:0:5EFE:1B00:1/128 punt 

524394 2002:2929:6:2::6/128 punt 

524396 2002:2929:6:1::6/128 punt 

524398 6363::6/128 punt 

524416 BEEF:6::/64 drop 

524418 5200::/64 punt 

524420 2929::/64 punt 

524422 2002:2929:6:2::/64 punt 

524424 2002:2929:6:1::/64 punt 

524426 6363::/64 punt 

524428 3FFE:1B00:1:1::/64 Tu4 , V6 auto-tunnel 

524448 FEE0::/11 punt 

524480 FE80::/10 punt 

524512 FF00::/8 punt 

524544 ::/0 drop

This example shows how to display the IPv6 entries for a specific IPv6 address and mask:

Router# show mls cef ipv6 2001:4747::/64

Codes:R - Recirculation, I-IP encap

M-MPLS encap, + - Push label

Index Prefix Out i/f Out Label 

160 2001:4747::/64 punt

This example shows how to display all the IPv6-FIB entries that have per-prefix statistics available:

Router# show mls cef ipv6 accounting per-prefix

(I) BEEF:2::/64: 0 packets, 0 bytes

 
A - Active, I - Inactive

This example shows how to display detailed hardware information:

Router# show mls cef ipv6 detail 

Codes: M - mask entry, V - value entry, A - adjacency index, P - FIB Priority

D - FIB Don't short-cut, m - mod-num

Format: IPv6_DA - (C | xtag vpn uvo prefix)

M(128 ): F | 1 FF 1 FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF 

V(128 ): C | 1 0 1 2001:4747::1253 (A:12 ,P:1,D:0,m:0 )

M(160 ): F | 1 FF 1 FFFF:FFFF:FFFF:FFFF:: 

V(160 ): C | 1 0 1 2001:4747:: (A:11 ,P:1,D:0,m:0 )

M(224 ): F | 1 FF 1 FFE0:: 

V(224 ): C | 1 0 1 FEE0:: (A:11 ,P:1,D:0,m:0 )

M(256 ): F | 1 FF 1 FFC0:: 

V(256 ): C | 1 0 1 FE80:: (A:12 ,P:1,D:0,m:0 )

M(352 ): F | 1 FF 1 FF00:: 

V(352 ): C | 1 0 1 FF00:: (A:12 ,P:1,D:0,m:0 )

M(480 ): F | 1 FF 1 :: 

V(480 ): C | 1 0 1 :: (A:14 ,P:1,D:0,m:0 

Related Commands

Command	Description
mls ipv6 acl compress address unicast	Turns on the compression of IPv6 addresses.
remote login	Accesses the Cisco 7600 series router console or a specific module.

show monitor event-trace cef ipv6

To display event trace messages for Cisco Express Forwarding IPv6 events, use the show monitor event-trace cef ipv6 command in privileged EXEC mode.

show monitor event-trace cef ipv6 {{ipv6-address} {all [detail] | back {minutes | hours:minutes} [detail] | clock hours:minutes [day month] [detail] | from-boot seconds [detail] | latest [detail]} | all [detail] | back {minutes | hours:minutes} [detail] | clock hours:minutes [day month] [detail] | from-boot seconds [detail] | latest [detail] | parameters}

Syntax Description

ipv6-address	Specifies an IPv6 address. This address must be specified in hexadecimals using 16-bit values between colons, as specified in RFC 2373.
all	Displays all event trace messages currently in memory for Cisco Express Forwarding IPv6 events.
detail	(Optional) Displays detailed trace information for Cisco Express Forwarding IPv6 events.
back	Specifies how far back from the current time you want to view messages. For example, you can gather messages from the last 30 minutes.
minutes	Time argument (mmm) in minutes.
hours:minutes	Time argument (hh:mm) in hours and minutes. You must enter the colon (:) in the argument.
clock	Displays event trace messages starting from a specific clock time in hours and minutes format (hh:mm).
day month	(Optional) The day of the month from 1 to 31 and the name of the month of the year.
from-boot	Displays event trace messages starting after booting (uptime). To display the uptime, in seconds, enter the show monitor event-trace cef from-boot ? command.
seconds	(Optional) Displays event trace messages starting from a specified number of seconds after booting (uptime). Range: 0 to 3279.
latest	Displays only the event trace messages generated since the last show monitor event-trace cef ipv6 command was entered.
parameters	Displays parameters configured for the trace.

Command Modes

Privileged EXEC (#)

Command History

Release	Modification
12.2(25)S	This command was introduced.
12.2(28)SB	This command was integrated into Cisco IOS Release 12.2(28)SB and implemented on the Cisco 10000 series routers.
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.
12.4(20)T	This command was integrated into Cisco IOS Release 12.4(20)T.

Usage Guidelines

Use the show monitor event-trace cef ipv6 command to display trace message information for Cisco Express Forwarding IPv6 events.

The trace function is not locked while information is displayed to the console. This means that new trace messages can accumulate in memory. If entries accumulate faster than they can be displayed, some messages can be lost. If this happens, the show monitor event-trace cef ipv6 command generates a message indicating that some messages might be lost; however, messages continue to be displayed on the console. If the number of lost messages is excessive, the show monitor event-trace cef ipv6 command stops displaying messages.

Examples

The following is a sample of the show monitor event-trace cef ipv6 all command:

Router# show monitor event-trace cef ipv6 all       

*Aug 22 20:14:59.075:  [Default] *::*/*                Allocated FIB table      

                      [OK]

*Aug 22 20:14:59.075:  [Default] *::*/*'00             Add source Default table 

                      [OK]

*Aug 22 20:14:59.075:  [Default] ::/0'00               FIB add src DRH (ins)    

                      [OK]

*Aug 22 20:14:59.075:  [Default] *::*/*'00             New FIB table            

                      [OK]

Table 254 describes the significant fields shown in the display.

Table 254 show monitor event-trace cef ipv6 all Field Descriptions 

Field	Description
*Aug 22 20:14:59.075:	Time stamp that indicates the month, day, and time when the event was captured.
[Default] *::*/*	Identifies the default VRF.
Allocated FIB table   [OK]	Provides the event detail and indicates if the event happened. In this instance, a FIB table was allocated.

The following is sample output from the show monitor event-trace cef ipv6 parameters command:

Router# show monitor event-trace cef ipv6 parameters

Trace has 1000 entries

Stacktrace is disabled by default

Matching all events

Table 255 describes the significant fields shown in the display.

Table 255 show monitor event-trace cef ipv6 parameters Field Descriptions 

Field	Description
Trace has 1000 entries	The size of the event logging buffer is 1000 entries.
Stacktrace is disabled by default	Stack trace at tracepoints is disabled.
Matching all events	Event tracing for all events is matched.

Related Commands

Command	Description
monitor event-trace cef (EXEC)	Monitors and controls the event trace function for Cisco Express Forwarding.
monitor event-trace cef (global)	Configures event tracing for Cisco Express Forwarding.
monitor event-trace cef ipv4 (global)	Configures event tracing for Cisco Express Forwarding IPv4 events.
monitor event-trace cef ipv6 (global)	Configures event tracing for Cisco Express Forwarding IPv6 events.
show monitor event-trace cef	Displays event trace messages for Cisco Express Forwarding.
show monitor event-trace cef events	Displays event trace messages for Cisco Express Forwarding events.
show monitor event-trace cef interface	Displays event trace messages for Cisco Express Forwarding interface events.
show monitor event-trace cef ipv4	Displays event trace messages for Cisco Express Forwarding IPv4 events.

show monitor event-trace vpn-mapper

To display event trace messages for IPv6 virtual private networks (VPNs), use the show monitor event-trace vpn-mapper command 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 mpls forwarding-table

To display the contents of the Multiprotocol Label Switching (MPLS) Label Forwarding Information Base (LFIB), use the show mpls forwarding-table command in privileged EXEC mode.

show mpls forwarding-table [network {mask | length} | labels label [- label] | interface interface | next-hop address | lsp-tunnel [tunnel-id]] [vrf vrf-name] [detail]

Syntax Description

network	(Optional) Destination network number.
mask	IP address of the destination mask whose entry is to be shown.
length	Number of bits in the mask of the destination.
labels label - label	(Optional) Displays only entries with the specified local labels.
interface interface	(Optional) Displays only entries with the specified outgoing interface.
next-hop address	(Optional) Displays only entries with the specified neighbor as the next hop.
lsp-tunnel	(Optional) Displays only entries with the specified Label Switched Path (LSP) tunnel, or with all LSP tunnel entries.
tunnel-id	(Optional) Specifies the LSP tunnel for which to display entries.
vrf vrf-name	(Optional) Displays only entries with the specified VPN routing and forwarding (VRF) instance.
detail	(Optional) Displays information in long form (includes length of encapsulation, length of MAC string, maximum transmission unit (MTU), and all labels).

Command Modes

Privileged EXEC (#)

Command History

Release	Modification
11.1CT	This command was introduced.
12.1(3)T	This command was updated with MPLS terminology and command syntax.
12.2(8)T	The command was modified to accommodate use of the MPLS experimental (EXP) level as a selection criterion for packet forwarding. The output display was modified to include a bundle adjacency field and exp (VCD) values when the optional detail keyword is specified.
12.0(22)S	IPv6 MPLS aggregate label and prefix information was added to the display.
12.2(14)S	This command was integrated into Cisco IOS Release 12.2(14)S.
12.0(27)S	The command output was modified to include explicit-null label information.
12.2(25)S	The output was changed in the following ways: •The term "tag" was replaced with the term "label." •The term "untagged" was replaced with the term "no label."
12.0(29)S	This command was integrated into Cisco IOS Release 12.0(29)S.
12.2(28)SB	This command was integrated into Cisco IOS Release 12.2(28)SB and implemented on the Cisco 10000 series routers.
12.2(33)SRA	This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(33)SXH	The command output was modified for the Cisco IOS Software Modularity: MPLS Layer 3 VPNs feature to show the status of local labels in holdown. The status indicator showing that traffic is forwarded through an LSP tunnel is moved to the local label.

Examples

The following is sample output from the show mpls forwarding-table command:

Router# show mpls forwarding-table

Local Outgoing      Prefix            Bytes label Outgoing       Next Hop       

Label Label or VC   or Tunnel Id      switched  interface                     

26    No Label      10.253.0.0/16     0         Et4/0/0       10.27.32.4    

28    1/33          10.15.0.0/16      0         AT0/0.1       point2point    

29    Pop Label     10.91.0.0/16      0         Hs5/0         point2point    

      1/36          10.91.0.0/16      0         AT0/0.1       point2point    

30    32            10.250.0.97/32    0         Et4/0/2       10.92.0.7      

      32            10.250.0.97/32    0         Hs5/0         point2point    

34    26            10.77.0.0/24      0         Et4/0/2       10.92.0.7      

      26            10.77.0.0/24      0         Hs5/0         point2point    

35    No Label[T]   10.100.100.101/32 0         Tu301         point2point    

36    Pop Label     10.1.0.0/16      0         Hs5/0         point2point    

      1/37          10.1.0.0/16      0         AT0/0.1       point2point    

[T]     Forwarding through a TSP tunnel.

        View additional labeling info with the 'detail' option

The following is sample output from the show mpls forwarding-table command when the IPv6 Provider Edge Router over MPLS feature is configured to allow IPv6 traffic to be transported across an IPv4 MPLS backbone. The labels are aggregated because there are several prefixes for one local label, and the prefix column contains "IPv6" instead of a target prefix.

Router# show mpls forwarding-table

Local Outgoing      Prefix            Bytes label Outgoing       Next Hop       

Label Label or VC   or Tunnel Id      switched  interface                     

16    Aggregate     IPv6              0             

17    Aggregate     IPv6              0                 

18    Aggregate     IPv6              0                 

19    Pop Label     192.168.99.64/30  0         Se0/0         point2point    

20    Pop Label     192.168.99.70/32  0         Se0/0         point2point      

21    Pop Label     192.168.99.200/32 0         Se0/0         point2point    

22    Aggregate     IPv6              5424    

23    Aggregate     IPv6              3576 

24    Aggregate     IPv6              2600

The following is sample output from the show mpls forwarding-table command when you specify the detail keyword. If the MPLS EXP level is used as a selection criterion for packet forwarding, a bundle adjacency exp (vcd) field is included in the display. This field includes the EXP value and the corresponding Virtual Circuit Descriptor (VCD) in parentheses. The line in the output that reads "No output feature configured" indicates that the MPLS egress NetFlow accounting feature is not enabled on the outgoing interface for this prefix.

Router# show mpls forwarding-table detail

Local Outgoing      Prefix            Bytes label Outgoing       Next Hop       

label   label or VC     or Tunnel Id      switched  interface                     

16    Pop label       10.0.0.6/32        0         AT1/0.1       point2point 

  Bundle adjacency exp(vcd)

  0(1) 1(1) 2(1) 3(1) 4(1) 5(1) 6(1) 7(1)

  MAC/Encaps=12/12, MTU=4474, label Stack{}

      00010000AAAA030000008847

  No output feature configured

17    18            10.0.0.9/32        0         AT1/0.1       point2point    

  Bundle adjacency exp(vcd)

  0(1) 1(1) 2(1) 3(1) 4(1) 5(1) 6(1) 7(1)

  MAC/Encaps=12/16, MTU=4470, label Stack{18}

      00010000AAAA030000008847 00012000

  No output feature configured

18    19            10.0.0.10/32        0        AT1/0.1       point2point    

  Bundle adjacency exp(vcd)

  0(1) 1(1) 2(1) 3(1) 4(1) 5(1) 6(1) 7(1)

  MAC/Encaps=12/16, MTU=4470, label Stack{19}

      00010000AAAA030000008847 00013000

  No output feature configured

19    17            10.0.0.0/8         0        AT1/0.1       point2point    

  Bundle adjacency exp(vcd)

  0(1) 1(1) 2(1) 3(1) 4(1) 5(1) 6(1) 7(1)

  MAC/Encaps=12/16, MTU=4470, label Stack{17}

      00010000AAAA030000008847 00011000

  No output feature configured

20    20            10.0.0.0/8         0        AT1/0.1       point2point    

  Bundle adjacency exp(vcd)

  0(1) 1(1) 2(1) 3(1) 4(1) 5(1) 6(1) 7(1)

  MAC/Encaps=12/16, MTU=4470, label Stack{20}

      00010000AAAA030000008847 00014000

  No output feature configured

21    Pop label       10.0.0.0/24        0        AT1/0.1       point2point 

  Bundle adjacency exp(vcd)

  0(1) 1(1) 2(1) 3(1) 4(1) 5(1) 6(1) 7(1)

  MAC/Encaps=12/12, MTU=4474, label Stack{}

      00010000AAAA030000008847

  No output feature configured

22    Pop label       10.0.0.4/32         0        Et2/3         10.0.0.4 

  MAC/Encaps=14/14, MTU=1504, label Stack{}

      000427AD10430005DDFE043B8847

  No output feature configured

The following is sample output from the show mpls forwarding-table command when you use the detail keyword. In this example, the MPLS egress NetFlow accounting feature is enabled on the first three prefixes, as indicated by the line in the output that reads "Feature Quick flag set."

Router# show mpls forwarding-table detail

Local  Outgoing    Prefix            Bytes label  Outgoing   Next Hop

label    label or VC   or Tunnel Id      switched   interface

16     Aggregate   10.0.0.0/8[V]     0

        MAC/Encaps=0/0, MTU=0, label Stack{}

        VPN route: vpn1

        Feature Quick flag set

Per-packet load-sharing, slots: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 

17     No label    10.0.0.0/8[V]      0          Et0/0/2    10.0.0.1

        MAC/Encaps=0/0, MTU=1500, label Stack{}

        VPN route: vpn1

        Feature Quick flag set

Per-packet load-sharing, slots: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

18     No label    10.42.42.42/32[V] 4185       Et0/0/2    10.0.0.1

        MAC/Encaps=0/0, MTU=1500, label Stack{}

        VPN route: vpn1

        Feature Quick flag set

Per-packet load-sharing, slots: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

19     2/33        10.41.41.41/32    0          AT1/0/0.1  point2point

        MAC/Encaps=4/8, MTU=4470, label Stack{2/33(vcd=2)}

        00028847 00002000

        No output feature configured

Cisco 10000 Series Examples

The following is sample output from the show mpls forwarding-table command:

Router# show mpls forwarding-table

Local   Outgoing      Prefix            Bytes Label   Outgoing   Next Hop

Label   Label or VC   or Tunnel Id      Switched      interface

16      Pop Label     10.0.0.0/8        0             Fa1/0/0    10.0.0.2

        Pop Label     10.0.0.0/8        0             Fa1/1/0    10.0.0.2

17      Aggregate     10.0.0.0/8[V]     570           vpn2

21      Pop Label     10.11.11.11/32    0             Fa1/0/0    10.0.0.2

22      Pop Label     10.12.12.12/32    0             Fa1/1/0    10.0.0.2

23      No Label      10.3.0.0/16[V]     0             Fa4/1/0   10.0.0.2

The following is Cisco 10000 series sample output from the show mpls forwarding-table command when you specify the detail keyword:

Router# show mpls forwarding-table detail

Local   Outgoing      Prefix            Bytes Label   Outgoing   Next Hop

Label   Label or VC   or Tunnel Id      Switched      interface

16      Pop Label     10.0.0.0/8        0             Fa1/0/0    10.0.0.2

        MAC/Encaps=14/14, MRU=1500, Label Stack{}

        000B45C93889000B45C930218847

        No output feature configured

        Pop Label     10.0.0.0/8        0             Fa1/1/0     10.0.0.2

        MAC/Encaps=14/14, MRU=1500, Label Stack{}

        000B45C92881000B45C930288847

        No output feature configured

17      Aggregate    10.0.0.0/8[V]      570           vpn2

        MAC/Encaps=0/0, MRU=0, Label Stack{}

        VPN route: vpn2

        No output feature configured

21      Pop Label     10.11.11.11/32     0            Fa1/0/0     10.0.0.2

        MAC/Encaps=14/14, MRU=1500, Label Stack{}

       000B45C93889000B45C930218847

       No output feature configured

Table 256 describes the significant fields in the sample output.

Table 256 show mpls forwarding-table Field Descriptions 

Field	Description
Local label	Label assigned by this router.
Outgoing Label or VC Note This field is not supported on the Cisco 10000 series routers.	Label assigned by the next hop or Virtual Path Identifier (VPI)/Virtual Channel Identifier (VCI) used to get to next hop. The entries in this column are the following: •[T]—Means forwarding through an LSP tunnel. •No Label—Means that there is no label for the destination from the next hop or that label switching is not enabled on the outgoing interface. •Pop Label—Means that the next hop advertised an implicit NULL label for the destination and that the router removed the top label. •Aggregate—Means there are several prefixes for one local label. This entry is used when IPv6 is configured on edge routers to transport IPv6 traffic over an IPv4 MPLS network.
Prefix or Tunnel Id	Address or tunnel to which packets with this label are sent. Note If IPv6 is configured on edge routers to transport IPv6 traffic over an IPv4 MPLS network, "IPv6" is displayed here. [V]—means that the corresponding prefix is in a VRF.
Bytes label switched	Number of bytes switched with this incoming label. This includes the outgoing label and Layer 2 header.
Outgoing interface	Interface through which packets with this label are sent.
Next Hop	IP address of the neighbor that assigned the outgoing label.
Bundle adjacency exp(vcd)	Bundle adjacency information. Includes the MPLS EXP value and the corresponding VCD.
MAC/Encaps	Length in bytes of the Layer 2 header and length in bytes of the packet encapsulation, including the Layer 2 header and label header.
MTU	MTU of the labeled packet.
label Stack	All the outgoing labels. If the outgoing interface is transmission convergence (TC)-ATM, the VCD is also shown. Note TC-ATM is not supported on Cisco 10000 series routers.
00010000AAAA030000008847 00013000	The actual encapsulation in hexadecimal form. A space is shown between Layer 2 and the label header.

Explicit-Null Label Example

The following example shows output, including the explicit-null label = 0 (commented in bold), from the show mpls forwarding-table command on a CSC-PE router:

Router# show mpls forwarding-table 

Local  Outgoing      Prefix            Bytes label  Outgoing   Next Hop    

label  label or VC   or Tunnel Id      switched     interface              

17     Pop label     10.10.0.0/32      0            Et2/0      10.10.0.1      

18     Pop label     10.10.10.0/24     0            Et2/0      10.10.0.1      

19     Aggregate     10.10.20.0/24[V]  0                                  

20     Pop label     10.10.200.1/32[V] 0            Et2/1      10.10.10.1      

21     Aggregate     10.10.1.1/32[V]   0                                  

22     0             192.168.101.101/32[V]   \

                                       0            Et2/1      192.168.101.101      

23     0             192.168.101.100/32[V]   \

                                       0            Et2/1      192.168.101.100      

25     0             192.168.102.125/32[V] 0        Et2/1      192.168.102.125 !outlabel 
value 0

Table 257 describes the significant fields in the sample output.

Table 257 show mpls forwarding-table Field Descriptions 

Field	Description
Local label	Label assigned by this router.
Outgoing label or VC	Label assigned by the next hop or VPI/VCI used to get to next hop. The entries this column are the following: •[T]—Means forwarding through an LSP tunnel. •No label—Means that there is no label for the destination from the next hop or that label switching is not enabled on the outgoing interface. •Pop label—Means that the next hop advertised an implicit NULL label for the destination and that this router popped the top label. •Aggregate—Means there are several prefixes for one local label. This entry is used when IPv6 is configured on edge routers to transport IPv6 traffic over an IPv4 MPLS network. •0—Means the explicit null label value = 0.
Prefix or Tunnel Id	Address or tunnel to which packets with this label are going. Note If IPv6 is configured on edge routers to transport IPv6 traffic over an IPv4 MPLS network, IPv6 is displayed here. [V]—means that the corresponding prefix is in a VRF.
Bytes label switched	Number of bytes switched with this incoming label. This includes the outgoing label and Layer 2 header.
Outgoing interface	Interface through which packets with this label are sent.
Next Hop	IP address of the neighbor that assigned the outgoing label.

Cisco IOS Software Modularity: MPLS Layer 3 VPNs Example

The following is sample output from the show mpls forwarding-table command.

Router# show mpls forwarding-table

Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop

Label      Label      or Tunnel Id     Switched      interface

16         Pop Label  IPv4 VRF[V]      62951000      aggregate/v1 

17    [H]  No Label   10.1.1.0/24      0             AT1/0/0.1 point2point 

           No Label   10.1.1.0/24      0             PO3/1/0 point2point 

      [T]  No Label   10.1.1.0/24      0             Tu1 point2point 

18    [HT] Pop Label  10.0.0.3/32      0             Tu1 point2point 

19    [H]  No Label   10.0.0.0/8       0             AT1/0/0.1 point2point 

           No Label   10.0.0.0/8       0             PO3/1/0 point2point 

20    [H]  No Label   10.0.0.0/8       0             AT1/0/0.1 point2point 

           No Label   10.0.0.0/8       0             PO3/1/0 point2point 

21    [H]  No Label   10.0.0.1/32      812           AT1/0/0.1 point2point 

           No Label   10.0.0.1/32      0             PO3/1/0 point2point 

22    [H]  No Label   10.1.14.0/24     0             AT1/0/0.1 point2point 

           No Label   10.1.14.0/24     0             PO3/1/0 point2point 

23    [HT] 16         172.1.1.0/24[V]  0             Tu1 point2point 

24    [HT] 24         10.0.0.1/32[V]   0             Tu1 point2point 

25    [H]  No Label   10.0.0.0/8[V]    0             AT1/1/0.1 point2point 

26    [HT] 16         10.0.0.3/32[V]   0             Tu1 point2point 

27         No Label   10.0.0.1/32[V]   0             AT1/1/0.1 point2point 

[T]     Forwarding through a TSP tunnel.

        View additional labelling info with the 'detail' option

[H]     Local label is being held down temporarily.

Table 258 describes the field relating to the Cisco IOS Software Modularity: MPLS Layer 3 VPNs feature as shown in the sample output.

Table 258 show mpls forwarding-table Field Descriptions

Field

Description

Local label

Label assigned by this router. •[H]—Local labels are in holddown, which means that the application that requested the labels no longer needs them and stops advertising them to its labeling peers. The label's forwarding-table entry is deleted after a short, application-specific time. If any application starts advertising a held-down label to its labeling peers, the label could come out of holddown. Note [H] is not shown if labels are held down globally. A label enters global holddown after a stateful switchover or a restart of certain processes in a Cisco IOS modularity environment. •[T]—The label is forwarded through an LSP tunnel. Note Although [T] is still a property of the outgoing interface, it is shown in the Local label column. •[HT]—Both conditions apply.

Related Commands

Command	Description
neighbor send-label	Enables a BGP router to send MPLS labels with BGP routes to a neighboring BGP router.
neighbor send-label explicit-null	Enables a BGP router to send MPLS labels with explicit-null information for a CSC-CE router and BGP routes to a neighboring CSC-PE router.

show ntp associations

To show the status of Network Time Protocol (NTP) associations, use the show ntp associations command in user EXEC or privileged EXEC mode.

show ntp associations [detail]

Syntax Description

detail

(Optional) Displays detailed information about each NTP association.

Command Modes

User EXEC
Privileged EXEC

Command History

Release	Modification
10.0	This command was introduced.
12.2(33)SRA	This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX	This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.
12.4(20)T	Support for IPv6 was added.

Examples

Detailed descriptions of the information displayed by this command can be found in the NTP specification (RFC 1305).

The following is sample output from the show ntp associations command:

Router> show ntp associations

     address         ref clock     st  when  poll  reach  delay  offset    disp

 ~172.31.32.2      172.31.32.1       5    29  1024  377     4.2   -8.59     1.6

+~192.168.13.33    192.168.1.111     3    69   128  377     4.1    3.48     2.3

*~192.168.13.57    192.168.1.111     3    32   128  377     7.9   11.18     3.6

* master (synced), # master (unsynced), + selected, - candidate, ~ configured

Table 259 describes the significant fields shown in the display.

Table 259 show ntp associations Field Descriptions 

Field	Description
(leading characters in display lines)	The first characters in a display line can be one or more of the following characters: * —Synchronized to this peer # —Almost synchronized to this peer + —Peer selected for possible synchronization - —Peer is a candidate for selection ~ —Peer is statically configured
address	Address of peer.
ref clock	Address of reference clock of peer.
st	Stratum of peer.
when	Time since last NTP packet was received from peer.
poll	Polling interval (in seconds).
reach	Peer reachability (bit string, in octal).
delay	Round-trip delay to peer (in milliseconds).
offset	Relative time of peer clock to local clock (in milliseconds).
disp	Dispersion

The following is sample output of the show ntp associations detail command:

Router> show ntp associations detail

172.31.32.2 configured, insane, invalid, stratum 5

ref ID 172.31.32.1, time AFE252C1.6DBDDFF2 (00:12:01.428 PDT Mon Jul 5 1993)

our mode active, peer mode active, our poll intvl 1024, peer poll intvl 64

root delay 137.77 msec, root disp 142.75, reach 376, sync dist 215.363

delay 4.23 msec, offset -8.587 msec, dispersion 1.62

precision 2**19, version 3

org time AFE252E2.3AC0E887 (00:12:34.229 PDT Mon Jul 5 1993)

rcv time AFE252E2.3D7E464D (00:12:34.240 PDT Mon Jul 5 1993)

xmt time AFE25301.6F83E753 (00:13:05.435 PDT Mon Jul 5 1993)

filtdelay =     4.23    4.14    2.41    5.95    2.37    2.33    4.26    4.33

filtoffset =   -8.59   -8.82   -9.91   -8.42  -10.51  -10.77  -10.13  -10.11

filterror =     0.50    1.48    2.46    3.43    4.41    5.39    6.36    7.34

192.168.13.33 configured, selected, sane, valid, stratum 3

ref ID 192.168.1.111, time AFE24F0E.14283000 (23:56:14.078 PDT Sun Jul 4 1993)

our mode client, peer mode server, our poll intvl 128, peer poll intvl 128

root delay 83.72 msec, root disp 217.77, reach 377, sync dist 264.633

delay 4.07 msec, offset 3.483 msec, dispersion 2.33

precision 2**6, version 3

org time AFE252B9.713E9000 (00:11:53.442 PDT Mon Jul 5 1993)

rcv time AFE252B9.7124E14A (00:11:53.441 PDT Mon Jul 5 1993)

xmt time AFE252B9.6F625195 (00:11:53.435 PDT Mon Jul 5 1993)

filtdelay =     6.47    4.07    3.94    3.86    7.31    7.20    9.52    8.71

filtoffset =    3.63    3.48    3.06    2.82    4.51    4.57    4.28    4.59

filterror =     0.00    1.95    3.91    4.88    5.84    6.82    7.80    8.77

192.168.13.57 configured, our_master, sane, valid, stratum 3

ref ID 192.168.1.111, time AFE252DC.1F2B3000 (00:12:28.121 PDT Mon Jul 5 1993)

our mode client, peer mode server, our poll intvl 128, peer poll intvl 128

root delay 125.50 msec, root disp 115.80, reach 377, sync dist 186.157

delay 7.86 msec, offset 11.176 msec, dispersion 3.62

precision 2**6, version 2

org time AFE252DE.77C29000 (00:12:30.467 PDT Mon Jul 5 1993)

rcv time AFE252DE.7B2AE40B (00:12:30.481 PDT Mon Jul 5 1993)

xmt time AFE252DE.6E6D12E4 (00:12:30.431 PDT Mon Jul 5 1993)

filtdelay =    49.21    7.86    8.18    8.80    4.30    4.24    7.58    6.42

filtoffset =   11.30   11.18   11.13   11.28    8.91    9.09    9.27    9.57

filterror =     0.00    1.95    3.91    4.88    5.78    6.76    7.74    8.71   

Table 260 describes the significant fields shown in the display.

Table 260 show ntp associations detail Field Descriptions 

Field	Descriptions
configured	Peer was statically configured.
dynamic	Peer was dynamically discovered.
our_master	Local machine is synchronized to this peer.
selected	Peer is selected for possible synchronization.
candidate	Peer is a candidate for selection.
sane	Peer passes basic sanity checks.
insane	Peer fails basic sanity checks.
valid	Peer time is believed to be valid.
invalid	Peer time is believed to be invalid.
leap_add	Peer is signalling that a leap second will be added.
leap-sub	Peer is signalling that a leap second will be subtracted.
unsynced	Peer is not synchronized to any other machine.
ref ID	Address of machine peer is synchronized to.
time	Last time stamp peer received from its master.
our mode	Our mode relative to peer (active/passive/client/server/bdcast/bdcast client).
peer mode	Peer's mode relative to us.
our poll intvl	Our poll interval to peer.
peer poll intvl	Peer's poll interval to us.
root delay	Delay along path to root (ultimate stratum 1 time source).
root disp	Dispersion of path to root.
reach	Peer reachability (bit string in octal).
sync dist	Peer synchronization distance.
delay	Round-trip delay to peer.
offset	Offset of peer clock relative to our clock.
dispersion	Dispersion of peer clock.
precision	Precision of peer clock in Hertz.
version	NTP version number that peer is using.
org time	Originate time stamp.
rcv time	Receive time stamp.
xmt time	Transmit time stamp.
filtdelay	Round-trip delay (in milliseconds) of each sample.
filtoffset	Clock offset (in milliseconds) of each sample.
filterror	Approximate error of each sample.

Related Commands

Command	Description
show ntp status	Displays the status of the NTP.

show ntp status

To show the status of the Network Time Protocol (NTP), use the show ntp status command in user EXEC or privileged EXEC mode.

show ntp status

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC
Privileged EXEC

Command History

Release	Modification
10.0	This command was introduced.
12.2(33)SRA	This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX	This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.
12.4(20)T	Support for IPv6 was added.

Examples

The following is sample output from the show ntp status command:

Router> show ntp status

Clock is synchronized, stratum 4, reference is 192.168.13.57

nominal freq is 250.0000 Hz, actual freq is 249.9990 Hz, precision is 2**19

reference time is AFE2525E.70597B34 (00:10:22.438 PDT Mon Jul 5 1993)

clock offset is 7.33 msec, root delay is 133.36 msec

root dispersion is 126.28 msec, peer dispersion is 5.98 msec

Table 261 describes the significant fields shown in the display.

Table 261 show ntp status Field Descriptions 

Field	Description
synchronized	System is synchronized to an NTP peer.
unsynchronized	System is not synchronized to any NTP peer.
stratum	NTP stratum of this system.
reference	Address of peer the system is synchronized to.
nominal freq	Nominal frequency of system hardware clock.
actual freq	Measured frequency of system hardware clock.
precision	Precision of the clock of this system (in Hertz).
reference time	Reference time stamp.
clock offset	Offset of the system clock to synchronized peer.
root delay	Total delay along path to root clock.
root dispersion	Dispersion of root path.
peer dispersion	Dispersion of synchronized peer.

Related Commands

Command	Description
show ntp associations	Displays the status of the NTP associations.

show platform software ipv6-multicast

To display information about the platform software for IPv6 multicast, use the show platform software ipv6-multicast command 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 statistics keywords 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 sccp

To display Skinny Client Control Protocol (SCCP) information such as administrative and operational status, use the show sccp command in privileged EXEC mode.

show sccp [all | connections | statistics]

Syntax Description

all	(Optional) Specifies all SCCP global information.
connections	(Optional) Specifies information about the connections controlled by the SCCP transcoding and conferencing applications.
statistics	(Optional) Specifies statistical information for SCCP transcoding and conferencing applications.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(5)YH	This command was introduced on the Cisco VG200.
12.2(13)T	This command was implemented on the Cisco 2600 series, Cisco 3620, Cisco 3640, Cisco 3660, and Cisco 3700 series.
12.4(11)XW1	The stype field was modified to show whether a connection is encrypted.
12.4(22)T	Command output was updated to show IPv6 information.

Usage Guidelines

The router on which you use this command must be equipped with one or more digital T1/E1 packet voice trunk network modules (NM-HDVs) or high-density voice (HDV) transcoding/conferencing DSP farms (NM-HDV-FARMs) to provide digital signal processor (DSP) resources.

Examples

In the following example output, the gateway IP address can be an IPv4 or IPv6 address when it operates on an IPv4/IPv6 dual stack:

Router# show sccp

SCCP Admin State: UP 

Gateway Local Interface: GigabitEthernet0/0 

        IPv6 Address: 2001:DB8:C18:1::3 

        IPv4 Address: 10.4.34.100 

        Port Number: 2000 

IP Precedence: 5 

User Masked Codec list: None 

Call Manager: 172.19.242.27, Port Number: 2000 

                Priority: N/A, Version: 5.0.1, Identifier: 4 

                Trustpoint: N/A 

Call Manager: 2001:DB8:C18:1::100, Port Number: 2000 

                Priority: N/A, Version: 7.0, Identifier: 1 

                Trustpoint: N/A 

The following is sample output from this command for IPv4 only:

Router# show sccp

SCCP Admin State: UP

Gateway IP Address: 10.10.10.11, Port Number: 0

Switchover Method: IMMEDIATE, Switchback Method: GUARD_TIMER

Switchback Guard Timer: 1200 sec, IP Precedence: 5

Max Supported MTP sessions: 100

Transcoding Oper State: ACTIVE - Cause Code: NONE

Active CallManager: 10.10.10.35, Port Number: 2000

TCP Link Status: CONNECTED

Conferencing Oper State: DOWN - Cause Code: DSPFARM_DOWN

Active CallManager: NONE

TCP Link Status: NOT_CONNECTED

CallManager: 10.10.10.37, Port Number: 2000

Priority: 3, Version: 3.1

CallManager: 10.10.10.35, Port Number: 2000

Priority: 2, Version: 3.0

The following sample output from this command shows statistical information for SCCP transcoding and conferencing applications:

Router# show sccp statistics

SCCP Transcoding Application Statistics:

TCP packets rx 548, tx 559

Unsupported pkts rx 3, Unrecognized pkts rx 0

Register tx 3, successful 3, rejected 0, failed 0

KeepAlive tx 543, successful 540, failed 2

OpenReceiveChannel rx 2, successful 2, failed 0

CloseReceiveChannel rx 0, successful 0, failed 0

StartMediaTransmission rx 2, successful 2, failed 0

StopMediaTransmission rx 0, successful 0, failed 0

MediaStreamingFailure rx 0

Switchover 1, Switchback 1

SCCP Conferencing Application Statistics:

TCP packets rx 0, tx 0

Unsupported pkts rx 0, Unrecognized pkts rx 0

Register tx 0, successful 0, rejected 0, failed 0

KeepAlive tx 0, successful 0, failed 0

OpenReceiveChannel rx 0, successful 0, failed 0

CloseReceiveChannel rx 0, successful 0, failed 0

StartMediaTransmission rx 0, successful 0, failed 0

StopMediaTransmission rx 0, successful 0, failed 0

MediaStreamingFailure rx 0

Switchover 0, Switchback 0

In the following example, the secure value of the stype field indicates that the conection is encrypted:

Router# show sccp connections

sess_id    conn_id    stype        mode codec   ripaddr       rport sport

16777222   16777409   secure-xcode sendrecv g729b   10.3.56.120   16772 19534

16777222   16777393   secure-xcode sendrecv g711u   10.3.56.50    17030 18464

Total number of active session(s) 1, and connection(s) 2

The following example shows the remote IP addresses of active RTP sessions, each of which shows either an IPv4 or an IPv6 address:

Router# show sccp connections 

sess_id  conn_id  stype  mode    codec sport rport ripaddr

 
16777219 16777245 conf  sendrecv g711u 16516 27814 10.3.43.46 

16777219 16777242 conf  sendrecv g711u 17712 18028 10.3.43.2

16777219 16777232 conf  sendrecv g711u 16890 19440 10.3.43.2

16777219 16777228 conf  sendrecv g711u 19452 17464 10.3.43.2

16777220 16777229 xcode sendrecv g711u 17464 19452 10.3.43.2

16777220 16777227 xcode sendrecv g729b 19466 19434 2001:0DB8:C18:1:212:79FF:FED7:B254

16777221 16777233 mtp   sendrecv g711u 19440 16890 10.3.43.2

16777221 16777231 mtp   sendrecv g711u 17698 17426 2001:0DB8:C18:1:212:79FF:FED7:B254

16777223 16777243 mtp   sendrecv g711u 18028 17712 10.3.43.2

16777223 16777241 mtp   sendrecv g711u 16588 19446 2001:0DB8:C18:1:212:79FF:FED7:B254

Related Commands

Command	Description
dspfarm (DSP farm)	Enables DSP-farm service.
sccp	Enables SCCP and its associated transcoding and conferencing applications.
show dspfarm	Displays summary information about DSP resources.

show sip-ua calls

To display active user agent client (UAC) and user agent server (UAS) information on Session Initiation Protocol (SIP) calls, use the show sip-ua calls command in privileged EXEC mode.

show sip-ua calls

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(15)T	This command was introduced.
12.4(22)T	Command output was updated to show IPv6 information and to display Resource Reservation Protocol (RSVP) quality of service (QoS) preconditions information.

Usage Guidelines

The show sip-ua calls command displays active UAC and UAS information for SIP calls on a Cisco IOS device. The output includes information about IPv6, RSVP, and media forking for each call on the device and for all media streams associated with the calls. There can be any number of media streams associated with a call, of which typically only one is active. However, a call can include up to three active media streams if the call is media-forked. Use this command when debugging multiple media streams to determine if an active call on the device is forked.

Examples

The following is sample output from the show sip-ua calls command for a forked call with four associated media streams, three of which are currently active:

Router# show sip-ua calls

SIP UAC CALL INFO

Call 1 

SIP Call ID : 515205D4-20B711D6-8015FF77-1973C402@172.18.195.49 

 State of the call : STATE_ACTIVE (6) 

 Substate of the call : SUBSTATE_NONE (0) 

 Calling Number : 5550200 

 Called Number : 5551101 

 Bit Flags : 0x12120030 0x220000 

 Source IP Address (Sig ): 172.18.195.49 

 Destn SIP Req Addr:Port : 172.18.207.18:5063 

 Destn SIP Resp Addr:Port: 172.18.207.18:5063 

 Destination Name : 172.18.207.18 

 Number of Media Streams : 4 

 Number of Active Streams: 3 

 RTP Fork Object : 0x637C7B60 

 Media Stream 1 

  State of the stream : STREAM_ACTIVE 

  Stream Call ID : 28 

  Stream Type : voice-only (0) 

  Negotiated Codec : g711ulaw (160 bytes) 

  Codec Payload Type : 0 

  Negotiated Dtmf-relay : inband-voice 

  Dtmf-relay Payload Type : 0 

  Media Source IP Addr:Port: 172.18.195.49:19444 

  Media Dest IP Addr:Port : 172.18.193.190:16890 

 Media Stream 2 

  State of the stream : STREAM_ACTIVE 

  Stream Call ID : 33 

  Stream Type : voice+dtmf (1) 

  Negotiated Codec : g711ulaw (160 bytes) 

  Codec Payload Type : 0 

  Negotiated Dtmf-relay : rtp-nte 

  Dtmf-relay Payload Type : 101 

  Media Source IP Addr:Port: 172.18.195.49:18928 

  Media Dest IP Addr:Port : 172.18.195.73:18246 

 Media Stream 3 

  State of the stream : STREAM_ACTIVE 

  Stream Call ID : 34 

  Stream Type : dtmf-only (2) 

  Negotiated Codec : No Codec (0 bytes) 

  Codec Payload Type : -1 (None) 

  Negotiated Dtmf-relay : rtp-nte 

  Dtmf-relay Payload Type : 101 

  Media Source IP Addr:Port: 172.18.195.49:18428 

  Media Dest IP Addr:Port : 172.16.123.99:34463 

 Media Stream 4 

  State of the stream : STREAM_DEAD 

  Stream Call ID : -1 

  Stream Type : dtmf-only (2) 

  Negotiated Codec : No Codec (0 bytes) 

  Codec Payload Type : -1 (None) 

  Negotiated Dtmf-relay : rtp-nte 

  Dtmf-relay Payload Type : 101 

  Media Source IP Addr:Port: 172.18.195.49:0 

  Media Dest IP Addr:Port : 172.16.123.99:0

 Number of UAC calls: 1

SIP UAS CALL INFO

 Number of UAS calls: 0

The following is sample output from the show sip-ua calls command showing IPv6 information:

Router# show sip-ua calls

SIP UAC CALL INFO 

Call 1 

SIP Call ID                : 8368ED08-1C2A11DD-80078908-BA2972D0@2001::21B:D4FF:FED7:B000 

   State of the call       : STATE_ACTIVE (7) 

   Substate of the call    : SUBSTATE_NONE (0) 

   Calling Number          : 2000 

   Called Number           : 1000 

   Bit Flags               : 0xC04018 0x100 0x0 

   CC Call ID              : 2 

   Source IP Address (Sig ): 2001::21B:D4FF:FED7:B000 

   Destn SIP Req Addr:Port : [2001::21B:D5FF:FE1D:6C00]:5060 

   Destn SIP Resp Addr:Port: [2001::21B:D5FF:FE1D:6C00]:5060 

   Destination Name        : 2001::21B:D5FF:FE1D:6C00 

   Number of Media Streams : 1 

   Number of Active Streams: 1 

   RTP Fork Object         : 0x0 

   Media Mode              : flow-through 

   Media Stream 1 

     State of the stream      : STREAM_ACTIVE 

     Stream Call ID           : 2 

     Stream Type              : voice-only (0) 

     Stream Media Addr Type   : 1709707780 

     Negotiated Codec         :  (20 bytes) 

     Codec Payload Type       : 18

     Negotiated Dtmf-relay    : inband-voice 

     Dtmf-relay Payload Type  : 0 

     Media Source IP Addr:Port: [2001::21B:D4FF:FED7:B000]:16504 

     Media Dest IP Addr:Port  : [2001::21B:D5FF:FE1D:6C00]:19548 

Options-Ping    ENABLED:NO    ACTIVE:NO 

   Number of SIP User Agent Client(UAC) calls: 1 

SIP UAS CALL INFO 

   Number of SIP User Agent Server(UAS) calls: 0 

The following is sample output from the show sip-ua calls command when mandatory QoS is configured at both endpoints and RSVP has succeeded:

Router# show sip-ua calls

SIP UAC CALL INFO

  Number of SIP User Agent Client(UAC) calls: 0

SIP UAS CALL INFO

Call 1

SIP Call ID              : F31FEA20-CFF411DC-8068DDB4-22C622B8@172.18.19.73

 State of the call       : STATE_ACTIVE (7)

 Substate of the call    : SUBSTATE_NONE (0)

 Calling Number          : 6001

 Called Number           : 1001

 Bit Flags               : 0x8C4401E 0x100 0x4

 CC Call ID              : 30

 Source IP Address (Sig ): 172.18.19.72

 Destn SIP Req Addr:Port : 172.18.19.73:5060

 Destn SIP Resp Addr:Port: 172.18.19.73:64440

 Destination Name        : 172.18.19.73

 Number of Media Streams : 1

 Number of Active Streams: 1

 RTP Fork Object         : 0x0

 Media Mode              : flow-through

 Media Stream 1

  State of the stream      : STREAM_ACTIVE

  Stream Call ID           : 30

  Stream Type              : voice-only (0)

  Negotiated Codec         : g711ulaw (160 bytes)

  Codec Payload Type       : 0 

  Negotiated Dtmf-relay    : inband-voice

  Dtmf-relay Payload Type  : 0

  Media Source IP Addr:Port: 172.18.19.72:18542

  Media Dest IP Addr:Port  : 172.18.19.73:16912

  Orig Media Dest IP Addr:Port : 0.0.0.0:0

  QoS ID                   : -2

  Local QoS Strength       : Mandatory

  Negotiated QoS Strength  : Mandatory

  Negotiated QoS Direction : SendRecv

  Local QoS Status         : Success

Options-Ping    ENABLED:NO     ACTIVE:NO

 Number of SIP User Agent Server(UAS) calls: 1

The following is sample output from the show sip-ua calls command when optional QoS is configured at both endpoints and RSVP has succeeded:

Router# show sip-ua calls

SIP UAC CALL INFO

   Number of SIP User Agent Client(UAC) calls: 0

SIP UAS CALL INFO

Call 1

SIP Call ID              : 867EA226-D01311DC-8041CA97-F9A5F4F1@172.18.19.73

 State of the call       : STATE_ACTIVE (7)

 Substate of the call    : SUBSTATE_NONE (0)

 Calling Number          : 6001

 Called Number           : 1001

 Bit Flags               : 0x8C4401E 0x100 0x4

 CC Call ID              : 30

 Source IP Address (Sig ): 172.18.19.72

 Destn SIP Req Addr:Port : 172.18.19.73:5060

 Destn SIP Resp Addr:Port: 172.18.19.73:25055

 Destination Name        : 172.18.19.73

 Number of Media Streams : 1

 Number of Active Streams: 1

 RTP Fork Object         : 0x0

 Media Mode              : flow-through

 Media Stream 1

  State of the stream      : STREAM_ACTIVE

  Stream Call ID           : 30

  Stream Type              : voice-only (0)

  Negotiated Codec         : g711ulaw (160 bytes)

  Codec Payload Type       : 0 

  Negotiated Dtmf-relay    : inband-voice

  Dtmf-relay Payload Type  : 0

  Media Source IP Addr:Port: 172.18.19.72:17556

  Media Dest IP Addr:Port  : 172.18.19.73:17966

  Orig Media Dest IP Addr:Port : 0.0.0.0:0

  QoS ID                   : -2

  Local QoS Strength       : Optional

  Negotiated QoS Strength  : Optional

  Negotiated QoS Direction : SendRecv

  Local QoS Status         : Success

Options-Ping    ENABLED:NO    ACTIVE:NO

   Number of SIP User Agent Server(UAS) calls: 1

The following is sample output from the show sip-ua calls command when optional QoS is configured at both endpoints and RSVP has failed:

Router# show sip-ua calls

SIP UAC CALL INFO

   Number of SIP User Agent Client(UAC) calls: 0

SIP UAS CALL INFO

Call 1

SIP Call ID              : 867EA226-D01311DC-8041CA97-F9A5F4F1@172.18.19.73

 State of the call       : STATE_ACTIVE (7)

 Substate of the call    : SUBSTATE_NONE (0)

 Calling Number          : 6001

 Called Number           : 1001

 Bit Flags               : 0x8C4401E 0x100 0x4

 CC Call ID              : 30

 Source IP Address (Sig ): 172.18.19.72

 Destn SIP Req Addr:Port : 172.18.19.73:5060

 Destn SIP Resp Addr:Port: 172.18.19.73:25055

 Destination Name        : 172.18.19.73

 Number of Media Streams : 1

 Number of Active Streams: 1

 RTP Fork Object         : 0x0

 Media Mode              : flow-through

 Media Stream 1

  State of the stream      : STREAM_ACTIVE

  Stream Call ID           : 30

  Stream Type              : voice-only (0)

  Negotiated Codec         : g711ulaw (160 bytes)

  Codec Payload Type       : 0 

  Negotiated Dtmf-relay    : inband-voice

  Dtmf-relay Payload Type  : 0

  Media Source IP Addr:Port: 172.18.19.72:17556

  Media Dest IP Addr:Port  : 172.18.19.73:17966

  Orig Media Dest IP Addr:Port : 0.0.0.0:0

  QoS ID                   : -2

  Local QoS Strength       : Optional

  Negotiated QoS Strength  : Optional

  Negotiated QoS Direction : SendRecv

  Local QoS Status         : Fail

Options-Ping    ENABLED:NO    ACTIVE:NO

   Number of SIP User Agent Server(UAS) calls: 1

The following is sample output from the show sip-ua calls command when the command is used on the originating gateway (OGW) while optional QoS is configured on the OGW, mandatory QoS is configured on the terminating gateway (TGW), and RSVP has succeeded:

Router# show sip-ua calls

SIP UAC CALL INFO

   Number of SIP User Agent Client(UAC) calls: 0

SIP UAS CALL INFO

Call 1

SIP Call ID              : 867EA226-D01311DC-8041CA97-F9A5F4F1@172.18.19.73

 State of the call       : STATE_ACTIVE (7)

 Substate of the call    : SUBSTATE_NONE (0)

 Calling Number          : 6001

 Called Number           : 1001

 Bit Flags               : 0x8C4401E 0x100 0x4

 CC Call ID              : 30

 Source IP Address (Sig ): 172.18.19.72

 Destn SIP Req Addr:Port : 172.18.19.73:5060

 Destn SIP Resp Addr:Port: 172.18.19.73:25055

 Destination Name        : 172.18.19.73

 Number of Media Streams : 1

 Number of Active Streams: 1

 RTP Fork Object         : 0x0

 Media Mode              : flow-through

 Media Stream 1

  State of the stream      : STREAM_ACTIVE

  Stream Call ID           : 30

  Stream Type              : voice-only (0)

  Negotiated Codec         : g711ulaw (160 bytes)

  Codec Payload Type       : 0 

  Negotiated Dtmf-relay    : inband-voice

  Dtmf-relay Payload Type  : 0

  Media Source IP Addr:Port: 172.18.19.72:17556

  Media Dest IP Addr:Port  : 172.18.19.73:17966

  Orig Media Dest IP Addr:Port : 0.0.0.0:0

  QoS ID                   : -2

  Local QoS Strength       : Optional

  Negotiated QoS Strength  : Mandatory

  Negotiated QoS Direction : SendRecv

  Local QoS Status         : Success

Options-Ping    ENABLED:NO    ACTIVE:NO

   Number of SIP User Agent Server(UAS) calls: 1

Table 262 describes the significant fields shown in the displays.

.

Table 262 show sip-ua calls Field Descriptions 

Field	Description
SIP UAC CALL INFO	Field header that indicates that the following information pertains to the SIP UAC.
Call 1	Field header.
SIP Call ID	UAC call identification number.
State of the call	Indicates the state of the call. This field is used for debugging purposes. The state is variable and may be different from one Cisco IOS release to another.
Substate of the call	Indicates the substate of the call. This field is used for debugging purposes. The state is variable and may be different from one Cisco IOS release to another.
Calling Number	Indicates the calling number.
Called Number	Indicates the called number.
Bit Flags	Indicates the bit flags used for debugging.
Source IP Address (Sig )	Indicates the signaling source IPv4 or IPv6 address.
Destn SIP Req Addr: Port:	Indicates the signaling destination Request IPv4 or IPv6 address and port number.
Destn SIP Resp Addr: Port:	Indicates the signaling destination Response IPv4 or IPv6 address and port number.
Destination Name	Indicates the signaling destination hostname, IPv4 address, or IPv6 address.
Number of Media Streams	Indicates the total number of media streams for this UAC call.
Number of Active Streams:	Indicates the total number of active media streams.
RTP Fork Object	Pointer address of the internal RTP Fork data structure.
Media Stream	Statistics about each active media stream are reported. The Media Stream header indicates the number of the media stream, and its statistics immediately follow this header.
State of the stream	State of the media stream indicated by the Media Stream header. Can be STREAM_ACTIVE, STREAM_ADDING, STREAM_CHANGING, STREAM_DEAD, STREAM_DELETING, STREAM_IDLE, or Invalid Stream State.
Stream Call ID	Identification of the stream call indicated by the Media Stream header.
Stream Type	Type of stream indicated by the Media Stream header. It can be dtmf-only, dtmf-relay, voice-only, or voice+dtmf-relay.
Negotiated Codec	Codec selected for the media stream. It can be g711ulaw, <G.729>, <G.726>, or No Codec.
Codec Payload Type	Payload type of the Negotiated Codec.
Negotiated Dtmf-relay	DTMF relay selected for the media stream indicated by the Media Stream header. It can be inband-voice or rtp-nte.
Dtmf-relay Payload Type	Payload type of the negotiated DTMF relay.
Media Source IP Addr: Port	The source IPv4 or IPv6 address and port number of the media stream indicated by the Media Stream header.
Media Dest IP Addr: Port	The destination IPv4 or IPv6 address and port number of the media stream indicated by the Media Stream header.
Local QoS Strength	The QoS strength (mandatory or optional) configured for this device.
Negotiated QoS Strength	The QoS strength (mandatory or optional) that has been negotiated.
Negotiated QoS Direction	Displays the direction in which RSVP was negotiated. For example, sendrecv indicates that RSVP was negotiated in both directions.
Local QoS Status	Displays the success or failure of RSVP reservation.
Number of UAC calls	Final SIP UAC CALL INFO field. Indicates the number of UAC calls.
SIP UAS CALL INFO	Field header that indicates that the following information pertains to the SIP UAS.
Number of UAS calls	Final SIP UAS CALL INFO field. Indicates the number of UAS calls.

Related Commands

Command	Description
debug ccsip all	Enables all SIP-related debugging.
debug ccsip events	Enablestracing of events that are specific to SIP SPI.
debug ccsip info	Enables tracing of general SIP SPI information.
debug ccsip media	Enables tracing of SIP call media streams.
debug ccsip messages	Enables tracing of SIP Service Provider Interface (SPI) messages.

show sip-ua connections

To display Session Initiation Protocol (SIP) user-agent (UA) transport connection tables, use the show sip-ua connections command in privileged EXEC mode.

show sip-ua connections {tcp [tls] | udp} {brief | detail}

Syntax Description

tcp	Displays all TCP connection information.
tls	(Optional) Displays all Transport Layer Security (TLS) over TCP connection information.
udp	Displays all User Datagram Protocol (UDP) connection information.
brief	Displays a summary of connections.
detail	Displays detailed connection information.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.3(8)T	This command was introduced
12.4(6)T	The optional tls keyword was added.
12.4(22)T	Command output was updated to show IPv6 information.

Usage Guidelines

The show sip-ua connections command should be executed only after a call is made. Use this command to learn the connection details.

Examples

The following sample output from this command shows multiple calls to multiple destinations. Although this example shows UDP details, the command output looks identical for TCP calls.

Router# show sip-ua connections udp detail 

Total active connections : 2 

No. of send failures : 0 

No. of remote closures : 0 

No. of conn. failures : 0 

No. of inactive conn. ageouts : 0

---------Printing Detailed Connection Report--------- 

Note: 

** Tuples with no matching socket entry 

- Do 'clear sip <tcp/udp> conn t ipv4:<addr>:<port>' 

to overcome this error condition 

++ Tuples with mismatched address/port entry 

- Do 'clear sip <tcp/udp> conn t ipv4:<addr>:<port> id <connid>' 

to overcome this error condition

Remote-Agent:172.18.194.183, Connections-Count:1 

Remote-Port Conn-Id Conn-State WriteQ-Size 

=========== ======= =========== =========== 

5060 1 Established 0

Remote-Agent:172.19.154.18, Connections-Count:1 

Remote-Port Conn-Id Conn-State WriteQ-Size 

=========== ======= =========== =========== 

5060        2       Established   0

Router# show sip-ua connections udp brief

Total active connections      : 0

No. of send failures          : 2

No. of remote closures        : 0

No. of conn. failures         : 0

No. of inactive conn. ageouts : 5

Router# show sip-ua connections tcp detail

Total active connections      : 0

No. of send failures          : 0

No. of remote closures        : 0

No. of conn. failures         : 0

No. of inactive conn. ageouts : 0

Max. tcp send msg queue size of 0, recorded for 0.0.0.0:0

---------Printing Detailed Connection Report---------

Note:

 ** Tuples with no matching socket entry

    - Do 'clear sip <tcp/udp> conn t ipv4:<addr>:<port>'

      to overcome this error condition

 ++ Tuples with mismatched address/port entry

    - Do 'clear sip <tcp/udp> conn t ipv4:<addr>:<port> id <connid>'

      to overcome this error condition

Remote-Agent:172.18.194.183, Connections-Count:1

Remote-Port Conn-Id Conn-State WriteQ-Size

=========== ======= =========== ===========

5060         1      Established   0

Router# show sip-ua connections tcp brief

Total active connections      : 0

No. of send failures          : 0

No. of remote closures        : 0

No. of conn. failures         : 0

No. of inactive conn. ageouts : 0

Max. tcp send msg queue size of 0, recorded for 0.0.0.0:0

Router# show sip-ua connections tcp tls brief

Total active connections      : 0

No. of send failures          : 0

No. of remote closures        : 0

No. of conn. failures         : 0

No. of inactive conn. ageouts : 0

No. of handshake errors       : 0

Max. tls send msg queue size of 0, recorded for 0.0.0.0:0

The following is sample output from the show sip-ua connections command showing IPv6 information:

Router# show sip-ua connections udp brief

Total active connections      : 1 

No. of send failures          : 0 

No. of remote closures        : 0 

No. of conn. failures         : 0 

No. of inactive conn. ageouts : 0 

Router# show sip-ua connections udp detail 

Total active connections      : 1 

No. of send failures          : 0 

No. of remote closures        : 0 

No. of conn. failures         : 0 

No. of inactive conn. ageouts : 0 

---------Printing Detailed Connection Report--------- 

Note: 

 ** Tuples with no matching socket entry 

    - Do 'clear sip <tcp[tls]/udp> conn t ipv4:<addr>:<port>' 

      to overcome this error condition 

 ++ Tuples with mismatched address/port entry 

    - Do 'clear sip <tcp[tls]/udp> conn t ipv4:<addr>:<port> id <connid>' 

      to overcome this error condition 

Remote-Agent:2001::21B:D5FF:FE1D:6C00, Connections-Count:1 

  Remote-Port Conn-Id Conn-State  WriteQ-Size 

  =========== ======= =========== =========== 

         5060       2 Established           0 

Table 263 describes the significant fields shown in the display.

Table 263 show sip-ua connections Field Descriptions 

Field	Description
Total active connections	Indicates all the connections that the gateway holds for various targets. Statistics are broken down within individual fields.
No. of send failures	Indicates the number of TCP or UDP messages dropped by the transport layer. Messages are dropped if there were network issues, and the connection was frequently ended.
No. of remote closures	Indicates the number of times a remote gateway ended the connection. A higher value indicates a problem with the network or that the remote gateway does not support reusing the connections (thus it is not RFC 3261-compliant). The remote closure number can also contribute to the number of send failures.
No. of conn. failures	Indicates the number of times that the transport layer was unsuccessful in establishing the connection to the remote agent. The field can also indicate that the address or port configured under the dial peer might be incorrect or that the remote gateway does not support that mode of transport.
No. of inactive conn. ageouts	Indicates the number of times that the connections were ended or timed out because of signaling inactivity. During call traffic, this number should be zero. If it is not zero, we recommend that the inactivity timer be tuned to optimize performance by using the timers command.
Max. tcp send msg queue size of 0, recorded for 0.0.0.0:0	Indicates the number of messages waiting in the queue to be sent out on the TCP connection when the congestion was at its peak. A higher queue number indicates that more messages are waiting to be sent on the network. The growth of this queue size cannot be controlled directly by the administrator.
Tuples with no matching socket entry	Any tuples for the connection entry that are marked with "**" at the end of the line indicate an upper transport layer error condition; specifically, that the upper transport layer is out of sync with the lower connection layer. Cisco IOS software should automatically overcome this condition. If the error persists, execute the clear sip-ua udp connection or clear sip-ua tcp connection command and report the problem to your support team.
Tuples with mismatched address/port entry	Any tuples for the connection entry that are marked with "++" at the end of the line indicate an upper transport layer error condition, where the socket is probably readable, but is not being used. If the error persists, execute the clear sip-ua udp connection or clear sip-ua tcp connection command and report the problem to your support team.
Remote-Agent Connections-Count	Connections to the same target address. This field indicates how many connections are established to the same host.
Remote-Port Conn-Id Conn-State WriteQ-Size	Connections to the same target address. This field indicates how many connections are established to the same host. The WriteQ-Size field is relevant only to TCP connections and is a good indicator of network congestion and if there is a need to tune the TCP parameters.

Related Commands

Command	Description
clear sip-ua tcp connection	Clears a SIP TCP connection.
clear sip-ua udp connection	Clears a SIP UDP connection.
show sip-ua retry	Displays SIP retry statistics.
show sip-ua statistics	Displays response, traffic, and retry SIP statistics.
show sip-ua status	Displays SIP user agent status.
show sip-ua timers	Displays the current settings for the SIP UA timers.
sip-ua	Enables the SIP user-agent configuration commands.
timers	Configures the SIP signaling timers.

show sip-ua status

To display status for the Session Initiation Protocol (SIP) user agent (UA), use the show sip-ua status command in privileged EXEC mode.

show sip-ua status

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(1)T	This command was introduced on the Cisco 2600 series, Cisco 3600 series, and Cisco AS5300.
12.1(3)T	The statistics portion of the output was removed and included in the show sip-ua statistics command.
12.2(2)XA	This command was implemented on the Cisco AS5350 and Cisco AS5400.
12.2(2)XB	Command output was enhanced to display if media or signaling binding is enabled, and the style of the DNS SRV query (1 for RFC 2052; 2 for RFC 2782).
12.2(2)XB1	This command was implemented on the Cisco AS5850.
12.2(8)T	This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, and Cisco AS5400 was not included in this release. For the purposes of display, this command was separated from the generic show sip-ua command.
12.2(11)T	Command output was enhanced to display information on Session Description Protocol (SDP) application configuration. This command was supported on the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 in this release.
12.2(13)T	Command output was enhanced to display the following: •Information on redirection message handling. •Information on handling of 180 responses with SDP.
12.2(15)T	Command output was enhanced to display Suspend and Resume support.
12.2(15)ZJ	Command output was enhanced to display information on the duration of dual-tone multifrequency (DTMF) events.
12.3(4)T	This command was integrated into Cisco IOS Release 12.3(4)T.
12.3(8)T	Command output was enhanced to display Reason Header support.
12.4(22)T	Command output was updated to show IPv6 information.

Usage Guidelines

Use this command to verify SIP configurations.

Examples

The following is sample output from the show sip-ua status command:

Router# show sip-ua status

SIP User Agent Status

SIP User Agent for UDP : ENABLED

SIP User Agent for TCP : ENABLED

SIP User Agent bind status(signaling): DISABLED

SIP User Agent bind status(media): DISABLED 

SIP early-media for 180 responses with SDP: ENABLED

SIP max-forwards : 70

SIP DNS SRV version: 2 (rfc 2782)

NAT Settings for the SIP-UA

Role in SDP: NONE

Check media source packets: DISABLED

Maximum duration for a telephone-event in NOTIFYs: 2000 ms

SIP support for ISDN SUSPEND/RESUME: ENABLED

Redirection (3xx) message handling: ENABLED

Reason Header will override Response/Request Codes: ENABLED

 SDP application configuration:

 Version line (v=) required

 Owner line (o=) required

 Session name line (s=) required

 Timespec line (t=) required

 Media supported: audio image 

 Network types supported: IN 

 Address types supported: IP4 

 Transport types supported: RTP/AVP udptl 

The following is sample output from the show sip-ua status command showing IPv6 information:

Router# show sip-ua status 

SIP User Agent Status 

SIP User Agent for UDP : ENABLED 

SIP User Agent for TCP : ENABLED 

SIP User Agent for TLS over TCP : ENABLED 

SIP User Agent bind status(signaling): DISABLED

SIP User Agent bind status(media): DISABLED

SIP early-media for 180 responses with SDP: ENABLED 

SIP max-forwards : 70 

SIP DNS SRV version: 2 (rfc 2782)

NAT Settings for the SIP-UA 

Role in SDP: NONE 

Check media source packets: DISABLED 

Maximum duration for a telephone-event in NOTIFYs: 2000 ms 

SIP support for ISDN SUSPEND/RESUME: ENABLED 

Redirection (3xx) message handling: ENABLED 

Reason Header will override Response/Request Codes: DISABLED 

Out-of-dialog Refer: DISABLED 

Presence support is DISABLED 

protocol mode is ipv6 

SDP application configuration: 

 Version line (v=) required 

Owner line (o=) required 

 Timespec line (t=) required 

 Media supported: audio video image

 Network types supported: IN

 Address types supported: IP4 IP6

 Transport types supported: RTP/AVP udptl

Table 264 describes the significant fields shown in the display.

Table 264 show sip-ua status Field Descriptions 

Field	Description
SIP User Agent Status	UA status.
SIP User Agent for UDP	User Datagram Protocol (UDP) is enabled or disabled.
SIP User Agent for TCP	TCP is enabled or disabled.
SIP User Agent bind status (signaling)	Binding for signaling is enabled or disabled.
SIP User Agent bind status (media)	Binding for media is enabled or disabled.
SIP early-media for 180 responses with SDP	Early media cut-through treatment for 180 responses with SDP can be enabled (the default treatment) or disabled, with local ringback provided.
SIP max-forwards	Value of max-forwards of SIP messages.
SIP DNS SRV version	Style of the DNS SRV query: 1 for RFC 2052 or 2 for RFC 2782.
NAT Settings for the SIP-UA	Symmetric Network Address Translation (NAT) settings when the feature is enabled.
Role in SDP	Identifies the endpoint function in the connection setup procedure during symmetric NAT traversal. The endpoint role may be set to active, meaning that it initiates a connection, or to passive, meaning that it accepts a connection. A value of none in this field means that the feature is disabled.
Check media source packets	Media source packet checking is enabled or disabled.
Maximum duration for a telephone-event in NOTIFYs	Shows the time interval, in milliseconds (ms), between consecutive NOTIFY messages for a telephone event.
SIP support for ISDN SUSPEND/RESUME	Suspend and Resume support is enabled or disabled.
Redirection (3xx) message handling	Redirection can be enabled, which is the default status, according to RFC 2543. Or handling of redirection 3xx messages can be disabled, allowing the gateway to treat 3xx redirect messages as 4xx error messages.
Reason Header will override Response/Request Codes	Reason header is enabled or disabled.
protocol mode is ipv6	States whether the protocol being used is IPv6 or IPv4.
Version line (v=)	Indicates if the SDP version is required.
Owner line (o=)	Indicates if the session originator is required.
Session name line (s=)	Indicates if the session name is required.
Timespec line (t=)	Indicates if the session start and stop times are required.
Media supported	Media information.
Network types supported	Always IN for Internet.
Address types supported	Identifies the Internet Protocol version.
Transport types supported	Identifies the transport protocols supported.

Related Commands

Command	Description
show sip-ua retry	Displays SIP retry statistics.
show sip-ua statistics	Displays response, traffic, and retry SIP statistics.
show sip-ua timers	Displays the current settings for SIP UA timers.
sip-ua	Enables the SIP user-agent configuration commands.

show standby

To display Hot Standby Router Protocol (HSRP) information, use the show standby command in user EXEC or privileged EXEC mode.

show standby [type number [group]] [all | brief]

Syntax Description

type number	(Optional) Interface type and number for which output is displayed.
group	(Optional) Group number on the interface for which output is displayed.
all	(Optional) Displays information for groups that are learned or do not have the standby ip command configured.
brief	(Optional) A single line of output summarizes each standby group.

Command Modes

User EXEC (>)
Privileged EXEC (#)

Command History

Release	Modification
10.0	This command was introduced.
12.2(8)T	The output for the command was made clearer and easier to understand.
12.3(2)T	The output was enhanced to display information about Message Digest 5 (MD5) authentication.
12.3(4)T	The output was enhanced to display information about HSRP version 2.
12.2(25)S	This command was integrated into Cisco IOS Release 12.2(25)S.
12.4(4)T	IPv6 support was added.
12.4(6)T	The output for this command was enhanced to display information about HSRP master and client groups.
12.4(9)T	The output for this command was enhanced to display information about HSRP group shutdown configuration.
12.4(11)T	The output for this command was enhanced to display information about HSRP Bidirectional Forwarding Detection (BFD) peering.
12.2(33)SRB	This command was integrated into Cisco IOS Release 12.2(33)SRB.
12.2(33)SXH	This command was integrated into Cisco IOS Release 12.2(33)SXH.
12.2(33)SXI	The output for this command was enhanced to display information about gratuitous ARP packets.
12.4(24)T	This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
12.2(33)SXI1	This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
Cisco IOS XE Release 2.1	This command was integrated into Cisco IOS XE Release 2.1.
Cisco IOS XE Release 2.4	This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.

Usage Guidelines

To specify a group, you must specify an interface type and number.

Examples

The following is sample output from the show standby command:

Router# show standby

Ethernet0/1 - Group 1

  State is Active

   2 state changes, last state change 00:30:59

  Virtual IP address is 10.1.0.20

   Secondary virtual IP address 10.1.0.21

  Active virtual MAC address is 0004.4d82.7981

   Local virtual MAC address is 0004.4d82.7981 (bia)

  Hello time 4 sec, hold time 12 sec

   Next hello sent in 1.412 secs

  Gratuitous ARP 14 sent, next in 7.412 secs

  Preemption enabled, min delay 50 sec, sync delay 40 sec

  Active router is local

  Standby router is 10.1.0.6, priority 75 (expires in 9.184 sec)

  Priority 95 (configured 120)

   Tracking 2 objects, 0 up

      Down Interface Ethernet0/2, pri 15

      Down Interface Ethernet0/3

Group name is "HSRP1" (cfgd)

Follow by groups:

    Et1/0.3 Grp 2 Active 10.0.0.254 0000.0c07.ac02 refresh 30 secs (next 19.666)

    Et1/0.4 Grp 2 Active 10.0.0.254 0000.0c07.ac02 refresh 30 secs (next 19.491)

  Group name is "HSRP1", advertisement interval is 34 sec

The following is sample output from the show standby command when HSRP version 2 is configured:

Router# show standby

Ethernet0/1 - Group 1 (version 2)

  State is Speak

  Virtual IP address is 10.21.0.10

  Active virtual MAC address is unknown

   Local virtual MAC address is 0000.0c9f.f001 (v2 default)

  Hello time 3 sec, hold time 10 sec

   Next hello sent in 1.804 secs

  Preemption enabled

  Active router is unknown

  Standby router is unknown

  Priority 20 (configured 20)

  Group name is "hsrp-Et0/1-1" (default)

Ethernet0/2 - Group 1

  State is Speak

  Virtual IP address is 10.22.0.10

  Active virtual MAC address is unknown

    Local virtual MAC address is 0000.0c07.ac01 (v1 default)

  Hello time 3 sec, hold time 10 sec

    Next hello sent in 1.804 secs

  Preemption disabled

  Active router is unknown

  Standby router is unknown

  Priority 90 (default 100)

    Track interface Serial2/0 state Down decrement 10

  Group name is "hsrp-Et0/2-1" (default)

The following is sample output from the show standby command with the brief keyword specified:

Router# show standby brief

Interface   Grp Prio P State    Active addr     Standby addr    Group addr     

Et0         0   120    Init     10.0.0.1        unknown         10.0.0.12 

The following is sample output from the show standby command when HSRP MD5 authentication is configured:

Router# show standby

Ethernet0/1 - Group 1

  State is Active

    5 state changes, last state change 00:17:27

  Virtual IP address is 10.21.0.10

  Active virtual MAC address is 0000.0c07.ac01

    Local virtual MAC address is 0000.0c07.ac01 (default)

  Hello time 3 sec, hold time 10 sec

    Next hello sent in 2.276 secs

  Authentication MD5, key-string, timeout 30 secs

  Preemption enabled

  Active router is local

  Standby router is unknown

  Priority 110 (configured 110)

  Group name is "hsrp-Et0/1-1" (default)

The following is sample output from the show standby command when HSRP group shutdown is configured:

Router# show standby

Ethernet0/0 - Group 1

State is Init (tracking shutdown)

3 state changes, last state change 00:30:59

Track object 100 state Up

Track object 101 state Down

Track object 103 state Up

The following is sample output from the show standby command when HSRP BFD peering is enabled:

Router# show standby

Ethernet0/0 - Group 2

  State is Listen

    2 state changes, last state change 01:18:18

  Virtual IP address is 10.0.0.1

  Active virtual MAC address is 0000.0c07.ac02

    Local virtual MAC address is 0000.0c07.ac02 (v1 default)

  Hello time 3 sec, hold time 10 sec

  Preemption enabled

  Active router is 10.0.0.250, priority 120 (expires in 9.396 sec)

  Standby router is 10.0.0.251, priority 110 (expires in 8.672 sec)

    BFD enabled

  Priority 90 (configured 90)

  Group name is "hsrp-Et0/0-1" (default)

The following is sample output from the show standby command used to display the state of the standby RP:

Router# show standby

GigabitEthernet3/25 - Group 1

State is Init (standby RP, peer state is Active)

Virtual IP address is 10.0.0.1

Active virtual MAC address is unknown

Local virtual MAC address is 0000.0c07.ac01 (v1 default)

Hello time 3 sec, hold time 10 sec

Preemption disabled

Active router is unknown

Standby router is unknown

Priority 100 (default 100)

Group name is "hsrp-Gi3/25-1" (default)

Table 265 describes the significant fields shown in the displays.

Table 265 show standby Field Descriptions 

Field	Description
Ethernet - Group	Interface type and number and Hot Standby group number for the interface.
State is	State of local router; can be one of the following: •Active—Indicates the current Hot Standby router. •Standby—Indicates the router next in line to be the Hot Standby router. •Speak—Router is sending packets to claim the active or standby role. •Listen—Router is neither in the active nor standby state, but if no messages are received from the active or standby router, it will start to speak. •Init or Disabled—Router is not yet ready or able to participate in HSRP, possibly because the associated interface is not up. HSRP groups configured on other routers on the network that are learned via snooping are displayed as being in the Init state. Locally configured groups with an interface that is down or groups without a specified interface IP address appear in the Init state. For these cases, the Active addr and Standby addr fields will show "unknown." The state is listed as disabled in the fields when the standby ip command has not been specified. •Init (tracking shutdown)—HSRP groups appear in the Init state when HSRP group shutdown has been configured and a tracked object goes down.
Virtual IP address is, Secondary virtual IP addresses	All secondary virtual IP addresses are listed on separate lines. If one of the virtual IP addresses is a duplicate of an address configured for another device, it will be marked as "duplicate." A duplicate address indicates that the router has failed to defend its ARP (Address Resolution Protocol) cache entry.
Active virtual MAC address	Virtual MAC address being used by the current active router.
Local virtual MAC address	Virtual MAC address that would be used if this router became the active router. The origin of this address (displayed in parentheses) can be "default," "bia," (burned-in address) or "confgd" (configured).
Hello time, hold time	The hello time is the time between hello packets (in seconds) based on the command. The holdtime is the time (in seconds) before other routers declare the active or standby router to be down, based on the standby timers command. All routers in an HSRP group use the hello and hold- time values of the current active router. If the locally configured values are different, the variance appears in parentheses after the hello time and hold-time values.
Next hello sent in	Time in which the Cisco IOS software will send the next hello packet (in hours:minutes:seconds).
Gratuitous ARP 14 sent, next in 7.412 secs	Number of the gratuitous ARP packet HSRP has sent and the time in seconds when HSRP will send the next gratuitous ARP packet. This output appears only when HSRP sends gratuitous ARP packets.
Authentication	Authentication type configured based on the standby authentication command.
key-string	Indicates a key string is used for authentication. Configured key chains are not displayed.
timeout	Duration (in seconds) that HSRP will accept message digests based on both the old and new keys.
Preemption enabled, sync delay	Indicates whether preemption is enabled. If enabled, the minimum delay is the time a higher-priority nonactive router will wait before preempting the lower-priority active router. The sync delay is the maximum time a group will wait to synchronize with the IP redundancy clients.
Active router is	Value can be "local," "unknown," or an IP address. Address (and the expiration date of the address) of the current active Hot Standby router.
Standby router is	Value can be "local," "unknown," or an IP address. Address (and the expiration date of the address) of the "standby" router (the router that is next in line to be the Hot Standby router).
BFD enabled	Indicates that BFD peering is enabled on the router.
expires in	Time (in hours:minutes:seconds) in which the standby router will no longer be the standby router if the local router receives no hello packets from it.
Tracking	List of interfaces that are being tracked and their corresponding states. Based on the standby track command.
Group name is	The name of the HSRP group.
Follow by groups:	Indicates the client HSRP groups that have been configured to follow this HSRP group.
P	Indicates that the router is configured to preempt.

Related Commands

Command	Description
standby authentication	Configures an authentication string for the HSRP.
standby ip	Activates the HSRP.
standby mac-address	Specifies the virtual MAC address for the virtual router.
standby mac-refresh	Refreshes the MAC cache on the switch by periodically sending packets from the virtual MAC address.
standby preempt	Configures HSRP preemption and preemption delay.
standby priority	Configures Hot Standby priority of potential standby routers.
standby timers	Configures the time between hello messages and the time before other routers declare the active Hot Standby or standby router to be down.
standby track	Configures an interface so that the Hot Standby priority changes based on the availability of other interfaces.
standby use-bias	Configures HSRP to use the BIA of the interface as its virtual MAC address, instead of the preassigned MAC address (on Ethernet and FDDI) or the functional address (on Token Ring).

show stcapp device

To display configuration information about SCCP Telephony Control Application (STCAPP) analog voice ports, use the show stcapp device command in privileged EXEC mode.

show stcapp device {name device-name | summary | voice-port port}

Syntax Description

name device-name	Displays information for the analog voice port with the specified device name. The device name is the unique device ID that is assigned to the port when it registers with the call-control system.
summary	Displays a summary of all voice ports.
voice-port port	Displays information for the specified analog voice port. Note The port syntax is platform-dependent; type ? to determine appropriate port numbering.

Command Modes

Privileged EXEC (#)

Command History

Release	Modification
12.3(14)T	This command was introduced.
12.4(2)T	This command was modified. Command output was enhanced to display call control block (CCB) and call-control device information.
12.4(4)T	This command was modified. Command output was enhanced to display supported modem transport capability.
12.4(6)XE	This command was modified. Command output was enhanced to display visual message waiting indicator (VMWI) and information for Dial Tone After Remote Onhook feature.
12.4(11)T	This command was integrated into Cisco IOS Release 12.4(11)T.
12.4(22)T	This command was modified. Command output was updated to show IPv6 information.
15.0(1)XA	This command was modified. Cancel Call Waiting information was added to the command output.

Usage Guidelines

Use this command to display configuration and voice interface card (VIC)-specific port information. The Active Call Info field is populated only if a call is active on the voice port.

Examples

The following is sample output showing IPv6 addresses for the local and remote sites:

Router# show stcapp device voice-port 2/0

Port Identifier: 2/0 

Device Type: ALG 

Device Id: 1

Device Name: AN1AE2853624400

Device Security Mode : None

Modem Capability: None

Device State: IS 

Diagnostic: None

Directory Number: 1000

Dial Peer(s): 1000 

Dialtone after remote onhook feature: activated

Busytone after remote onhook feature: not activated

Last Event: STCAPP_DC_EV_DEVICE_CALL_INFO

Line State: ACTIVE

Hook State: OFFHOOK

mwi: DISABLE

vmwi: OFF

PLAR: DISABLE

Number of CCBs: 1

Global call info:

Total CCB count = 2

Total call leg count = 4 

Call State for C