Cisco IOS IPv6 Command Reference
IPv6 Commands: show ipv6 na to show ipv6 pr
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IPv6 Commands: show ipv6 na to show ipv6 pr

Contents

IPv6 Commands: show ipv6 na to show ipv6 pr

show ipv6 nat statistics

To display Network Address Translation--Protocol Translation (NAT-PT) statistics, use the show iv6 nat statisticscommand in user EXEC or privileged EXEC mode.

show ipv6 nat statistics

Syntax Description

This command has no arguments or keywords.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.2(13)T

This command was introduced.

Examples

The following is sample output from the show ipv6 nat statisticscommand:

Router# show ipv6 nat statistics
Total active translations: 4 (2 static, 2 dynamic; 2 extended) 
NAT-PT interfaces: 
  Ethernet3/1, Ethernet3/3 
Hits: 1  Misses: 1 
Expired translations: 0 

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

Table 1 show ipv6 nat statistics Field Descriptions

Field

Description

Total active translations

Number of translations active in the system. This number increments by one each time a translation is created and is decremented each time a translation is cleared or times out. Displays the numbers for each type of translation.

NAT-PT interfaces

The interfaces, by type and number, that are configured to run NAT-PT translations.

Hits

Number of times the software does a translations table lookup and finds an entry.

Misses

Number of times the software does a translations table lookup, fails to find an entry, and must try to create one.

Expired translations

Cumulative count of translations that have expired since the router was booted.

Related Commands

Command

Description

show ipv6 nat translations

Displays active NAT-PT translations.

show ipv6 nat translations

To display active Network Address Translation--Protocol Translation (NAT-PT) translations, use the show ip nat translations command in user EXEC or privileged EXEC mode.

show ipv6 nat translations [ icmp | tcp | udp ] [verbose]

Syntax Description

icmp

(Optional) Displays detailed information about NAT-PT ICMP translation events.

tcp

(Optional) Displays detailed information about NAT-PT TCP translation events.

udp

(Optional) Displays detailed information about NAT-PT User Datagram Protocol (UDP) translation events.

verbose

(Optional) Displays additional information for each translation table entry, including how long ago the entry was created and used.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.2(13)T

This command was introduced.

Examples

The following is sample output from the show ip nat translations command. Two static translations have been configured between an IPv4 source address and an IPv6 destination, and vice versa.

Router# show ipv6 nat translations
Prot  IPv4 source              IPv6 source 
      IPv4 destination         IPv6 destination 
---   ---                      --- 
      192.168.123.2            2001::2 
---   ---                      --- 
      192.168.122.10           2001::10 
tcp   192.168.124.8,11047      3002::8,11047 
      192.168.123.2,23         2001::2,23 
udp   192.168.124.8,52922      3002::8,52922 
      192.168.123.2,69         2001::2,69 
udp   192.168.124.8,52922      3002::8,52922 
      192.168.123.2,52922      2001::2,52922 
---   192.168.124.8            3002::8 
      192.168.123.2            2001::2 
---   192.168.124.8            3002::8 
      ---                      --- 
---   192.168.121.4            5001::4 
      ---                      ---

The following is sample output that includes the verbose keyword:

Router# show ipv6 nat translations verbose
Prot  IPv4 source              IPv6 source 
      IPv4 destination         IPv6 destination 
---   ---                      --- 
      192.168.123.2            2001::2 
      create 00:04:24, use 00:03:24, 
---   ---                      --- 
      192.168.122.10           2001::10 
      create 00:04:24, use 00:04:24, 
tcp   192.168.124.8,11047      3002::8,11047 
      192.168.123.2,23         2001::2,23 
      create 00:03:24, use 00:03:20, left 00:16:39, 
udp   192.168.124.8,52922      3002::8,52922 
      192.168.123.2,69         2001::2,69 
      create 00:02:51, use 00:02:37, left 00:17:22, 
udp   192.168.124.8,52922      3002::8,52922 
      192.168.123.2,52922      2001::2,52922 
      create 00:02:48, use 00:02:30, left 00:17:29, 
---   192.168.124.8            3002::8 
      192.168.123.2            2001::2 
      create 00:03:24, use 00:02:34, left 00:17:25, 
---   192.168.124.8            3002::8 
      ---                      --- 
      create 00:04:24, use 00:03:24, 
---   192.168.121.4            5001::4 
      ---                      --- 
      create 00:04:25, use 00:04:25,

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

Table 2 show ipv6 nat translations Field Descriptions

Field

Description

Prot

Protocol of the port identifying the address.

IPv4 source/IPv6 source

The IPv4 or IPv6 source address to be translated.

IPv4 destination/IPv6 destination

The IPv4 or IPv6 destination address.

create

How long ago the entry was created (in hours:minutes:seconds).

use

How long ago the entry was last used (in hours:minutes:seconds).

left

Time before the entry times out (in hours:minutes:seconds).

Related Commands

Command

Description

clear ipv6 nat translation

Clears dynamic NAT-PT translations from the translation state table.

show ipv6 nd destination

To display information about IPv6 host-mode destination cache entries, use the show ipv6 nd destination command in user EXEC or privileged EXEC mode.

show ipv6 nd destination [ vrf vrf-name] [ interface-type interface-number]

Syntax Description

vrf vrf-name

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

interface- type

(Optional) Specifies the Interface type.

interface- number

(Optional) Specifies the Interface number.

Command Modes


        User EXEC (>)
Privileged EXEC (#)
      

Command History

Release

Modification

15.0(2)SE

This command was introduced.

Usage Guidelines

Use the show ipv6 nd destination command to display information about IPv6 host-mode destination cache entries. If the vrf vrf-name keyword and argument pair is used, then only information about the specified VRF is displayed. If the interface-type and interface-number arguments are used, then only information about the specified interface is displayed.

Examples

Device# show ipv6 nd destination

IPv6 ND destination cache (table: default)
Code: R - Redirect
   2001::1 [8]
    via FE80::A8BB:CCFF:FE00:5B00/Ethernet0/0

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

Table 3 show ipv6 nd destination Field Descriptions

Field

Description

Code: R - Redirect

Destinations learned through redirect.

2001::1 [8]

The value displayed in brackets is the time, in seconds, since the destination cache entry was last used.

Related Commands

Command

Description

ipv6 nd host mode strict

Enables the conformant, or strict, IPv6 host mode.

show ipv6 nd on-link prefix

To display information about on-link prefixes learned through router advertisements (RAs), use the show ipv6 nd on-link prefix command in user EXEC or privileged EXEC mode.

show ipv6 nd on-link prefix [ vrf vrf-name] [ interface-type interface-number]

Syntax Description

vrf vrf-name

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

interface -type

(Optional) Specifies the Interface type.

interface -number

(Optional) Specifies the Interface number.

Command Modes


User EXEC (>)
Privileged EXEC (#)
      

Command History

Release

Modification

15.0(2)SE

This command was introduced.

Usage Guidelines

Use the show ipv6 nd on-link prefix command to display information about on-link prefixes learned through RAs.

Prefixes learned from an RA may be inspected using the show ipv6 nd on-link prefix command. If the vrf vrf-name keyword and argument pair is used, then only information about the specified VRF is displayed. If the interface-type and interface-number arguments are used, then only information about the specified interface is displayed.

Examples

The following example displays information about on-link prefixes learned through RAs:

Device# show ipv6 nd on-link prefix

IPv6 ND on-link Prefix (table: default), 2 prefixes
Code: A - Autonomous Address Config
A  2001::/64  [2591994/604794]
router FE80::A8BB:CCFF:FE00:5A00/Ethernet0/0
2001:1:2::/64  [2591994/604794]
router FE80::A8BB:CCFF:FE00:5A00/Ethernet0/0

Related Commands

Command

Description

ipv6 nd host mode strict

Enables the conformant, or strict, IPv6 host mode.

show ipv6 nd raguard counters

To display information about RA guard counters, use the show ipv6 nd raguard policycommand in privileged EXEC mode.

show ipv6 nd raguard counters [ interface type number ]

Syntax Description

interface type number

(Optional) Displays RA guard policy information for the specified interface type and number.

Command Modes


Privileged EXEC (#)

Command History

Release

Modification

12.2(5th)SXI

This command was introduced.

Usage Guidelines

The show ipv6 nd raguard counters command displays information about RA guard counters, such as packets sent, packets received, and packets droped. This command also provides information on why a packet was dropped.

show ipv6 nd raguard policy

To display a router advertisements (RAs) guard policy on all interfaces configured with the RA guard feature, use the show ipv6 nd raguard policy command in privileged EXEC mode.

show ipv6 nd raguard policy [ policy-name ]

Syntax Description

policy-name

(Optional) RA guard policy name.

Command Modes


Privileged EXEC (#)

Command History

Release

Modification

12.2(50)SY

This command was introduced.

15.2(4)S

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

15.0(2)SE

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

Cisco IOS XE Release 3.2SE

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

Usage Guidelines

The show ipv6 nd raguard policy command displays the options configured for the policy on all interfaces configured with the RA guard feature.

Examples

The following example shows the policy configuration for a policy named raguard1 and all the interfaces where the policy is applied:

Router# show ipv6 nd raguard policy interface raguard1 

Policy raguard1 configuration: 
  device-role host
Policy applied on the following interfaces:
  Et0/0        vlan all 
  Et1/0        vlan all 

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

Table 4 show ipv6 nd raguard policy Field Descriptions

Field

Description

Policy raguard1 configuration:

Configuration of the specified policy.

device-role host

The role of the device attached to the port. This device configuration is that of host.

Policy applied on the following interfaces:

The specified interface on which the RA guard feature is configured.

show ipv6 nd secured certificates

To display active IPv6 Secure Neighbor Discovery (SeND) certificates, use the show ipv6 nd secured certificatescommand in privileged EXEC mode.

show ipv6 nd secured certificates

Syntax Description

This command has no arguments or keywords.

Command Default

No SeND certificates are displayed.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.4(24)T

This command was introduced.

Usage Guidelines

The show ipv6 nd secured certificates command is used on hosts (routers configured in host mode) to display the certifcates received over SeND (via Certificate Path Advertisement) and their state.

Examples

The following example displays active SeND certificates:

Router# show ipv6 nd secured certificates
Total number of entries: 1 / 32
Hash                             id         RA  certcnt certrcv state
DC0102E09FAF422D49ED79A846D2EBC1 0x00000778 no  1       1       CERT_VALIDATED
certificate No 0
subject  hostname=sa14-72a,c=FR,st=fr,l=example,o=cisco,ou=nsstg,cn=72a

issuer c=FR,st=fr,l=example,o=cisco,ou=nsstg,cn=CA0

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

Table 5 show ipv6 nd secured certificates Field Descriptions

Field

Description

certcnt

Number of certificate for this chain.

certrcv

Number of certifciate received in the chain.

Hash

Key hash.

id

Numero of the certifciate.

RA

Displays Yes if an RA is pending for this certifciate.

state

Current state of the certificate.

Related Commands

Command

Description

show ipv6 cga modifier-db

Displays IPv6 CGA modifiers.

show ipv6 cga address-db

Displays IPv6 CGAs.

show ipv6 nd secured counters interface

Displays SeND counters on an interface.

show ipv6 nd secured nonce-db

Displays active SeND nonce entries.

show ipv6 nd secured timestamp-db

Displays active SeND time-stamp entries.

show ipv6 nd secured counters interface

To display IPv6 Secure Neighbor Discovery (SeND) counters on an interface, use the show ipv6 nd secured counters interfacecommand in privileged EXEC mode.

show ipv6 nd secured counters interface interface

Syntax Description

interface

(Optional) Specifies the interface on which SeND counters are located.

Command Default

No SeND counter information is displayed.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.4(24)T

This command was introduced.

Examples

The following example displays SeND counters:

Router# show ipv6 nd secured counters interface ethernet0/0
e0/0 Received ND messages on Ethernet0/0:
rcvd    accept  SLLA    TLLA    PREFIX  MTU     CGA     RSA     TS      NONCE   TA CERT
RA      66      65      63      0       62      63      63      63      63      0       0       0
NS      8       8       8       0       0       0       8       8       8       8       0       0
NA      20      20      0       8       0       0       19      19      19      14      0       0
CPA     1       1       0       0       0       0       0       0       0       0       1       1
Dropped ND messages on Ethernet0/0:
Codes   TIMEOUT: Timed out while waiting for rsp     
        drop    TIMEOUT
RA      1       1
Sent ND messages on Ethernet0/0:
sent    aborted SLLA    CGA     RSA     TS      NONCE   TA
NS      14      0       14      14      14      14      14      0
NA      8       0       0       8       8       8       8       0
CPS     43      0       0       0       0       0       0       43
Router#

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

Table 6 show ipv6 nd secured counters interface Field Descriptions

Field

Description

accept

Number of neighbor discovery (ND) messages accepted (messages that are not dropped).

CERT

Number of messages received with the certificate option.

CGA

Number of messages received with the CGA option.

MTU

Number of messages received with the MTU option.

NA

Number of NDP neighbor advertisements

NONCE

Number of messages received with the NONCE option.

NS

Number of NDP neighbor solicitions.

PREFIX

Number of messages received with the PREFIX option.

rcvd

Number of ND messages received on the interface.

RA

Number of router advertisements.

REDIR

Number of NDP redirect messages.

RS

Router Solicit.

RSA

Number of messages received with the RSA option.

SLLA

Number of messages received with the ND SLLA option.

TA

Number of messages received with the trust anchor option.

TS

Number of messages received with the time stamp option.

Related Commands

Command

Description

show ipv6 cga address-db

Displays IPv6 CGAs.

show ipv6 cga modifier-db

Displays IPv6 CGA modifiers.

show ipv6 nd secured certificates

Displays active SeND certificates.

show ipv6 nd secured nonce-db

Displays active SeND nonce entries.

show ipv6 nd secured timestamp-db

Displays active SeND timestamp entries.

show ipv6 nd secured nonce-db

To display active IPv6 Secure Neighbor Discovery (SeND) nonce database entries, use the show ipv6 nd secured nonce-dbcommand in privileged EXEC mode.

show ipv6 nd secured nonce-db

Syntax Description

This command has no arguments or keywords.

Command Default

No SeND nonce information is displayed.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.4(24)T

This command was introduced.

Usage Guidelines

The show ipv6 nd secured nonce-dbcommand is used to display the pending solicitations. There are rarely any pending solicitations because the solicitations are quickly answered and removed from the database.

Examples

The following example displays active SeND nonce entries. The output is self-explanatory.

Router# show ipv6 nd secured nonce-db
Total number of entries: 0

Related Commands

Command

Description

show ipv6 cga address-db

Displays IPv6 CGAs.

show ipv6 cga modifier-db

Displays IPv6 CGA modifiers.

show ipv6 nd secured certificates

Displays active SeND certificates.

show ipv6 nd secured counters interface

Displays SeND counters on an interface.

show ipv6 nd secured timestamp-db

Displays active SeND time stamp entries.

show ipv6 nd secured solicit-db

To display pending SEcure Neighbor Discovery (SEND) solicitations from peers, use the show ipv6 nd secured solicit-dbcommand in privileged EXEC configuration mode.

show ipv6 nd secured solicit-db

Syntax Description

This command has no arguments or keywords.

Command Default

No pending SEND solicitation information is displayed.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.4(24)T

This command was introduced.

Usage Guidelines

Use this command to display pending SEND solicitations.

Examples

The following example displays pending SEcure Neighbor Discovery (SEND) solicitations from peers:

Router# show ipv6 nd secured solicit-db

show ipv6 nd secured timestamp-db

To display active Secure Neighbor Discovery (SeND) time-stamp database entries, use the show ipv6 nd secured timestamp-dbcommand in privileged EXEC mode.

show ipv6 nd secured timestamp-db

Syntax Description

This command has no arguments or keywords.

Command Default

No pending SeND solicitation information is displayed.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.4(24)T

This command was introduced.

Usage Guidelines

The show ipv6 nd secured timestamp-db command displays the content of the time-stamp databse, which contains last received messages from peers. It also displays the delta and fuzz values.

Examples

The following example displays active SeND time-stamp database entries:

Router# show ipv6 nd secured timestamp-db
Total number of entries: 6 Number of unreached peer entries: 3 / 1024
FE80::289C:3308:4719:87F2 on Ethernet0/0, delta 300s, fuzz 1000ms
        Time to expire: 3h 41m 16s (reached)
        TSlast: 0x4936B97655FF = Wed Dec  3 16:53:10 2008
        RDlast: 0x4936B976438B = Wed Dec  3 16:53:10 2008
FE80::2441:88D1:22FC:3B77 on Ethernet0/0, delta 300s, fuzz 1000ms
        Time to expire: 3h 59m 53s (reached)
        TSlast: 0x4936BDD2E13E = Wed Dec  3 17:11:46 2008
        RDlast: 0x4936BDD2D0D6 = Wed Dec  3 17:11:46 2008
FE80::E2:F012:6F72:9E45 on Ethernet0/0, delta 300s, fuzz 1000ms
        Time to expire: 3h 4m 18s (unreached)
        TSlast: 0x4936B0CBB333 = Wed Dec  3 16:16:11 2008
        RDlast: 0x4936B0CBBD70 = Wed Dec  3 16:16:11 2008 2001:100::38C9:4A1A:2972:794E on Ethernet0/0, delta 300s, fuzz 1000ms
        Time to expire: 3h 4m 19s (unreached)
        TSlast: 0x4936BA254FDA = Wed Dec  3 16:56:05 2008
        RDlast: 0x4936BA253F72 = Wed Dec  3 16:56:05 2008 2001:100::383E:6BD5:397:4A50 on Ethernet0/0, delta 300s, fuzz 1000ms
        Time to expire: 3h 45m 0s (reached)
        TSlast: 0x4936BA55F2AA = Wed Dec  3 16:56:53 2008
        RDlast: 0x4936BA55E036 = Wed Dec  3 16:56:53 2008
2001:100::434:E62D:327D:B1E6 on Ethernet0/0, delta 300s, fuzz 1000ms
        Time to expire: 3h 4m 42s (unreached)
        TSlast: 0x4936B0E422D0 = Wed Dec  3 16:16:36 2008
        RDlast: 0x4936B0E42D0E = Wed Dec  3 16:16:36 2008

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

Table 7 show ipv6 nd secured timestamp-db Field Descriptions

Field

Description

Total number of entries

Number of entries (peers) in the cache.

Time to expire

Remaining time before entry expires.

TSlast

Last peer timestamp value.

RDlast

Time when the last message was received from the peer.

Related Commands

Command

Description

show ipv6 cga address-db

Displays IPv6 CGAs.

show ipv6 cga modifier-db

Displays IPv6 CGA modifiers.

show ipv6 nd secured certificates

Displays active SeND certificates.

show ipv6 nd secured counters interface

Displays SeND counters on an interface.

show ipv6 nd secured nonce-db

Displays active SeND nonce entries.

show ipv6 neighbor binding

To display contents of a binding table, use the show ipv6 neighbor binding command in privileged EXEC mode.

show ipv6 neighbor binding [ vlan vlan-id | interface type number | ipv6 ipv6-address | mac mac-address ]

Syntax Description

vlan vlan-id

(Optional) Displays the binding table entries that match the specified VLAN.

interface type number

(Optional) Displays the binding table entries that match the specified interface type and number.

ipv6 ipv6-address

(Optional) Displays the binding table entries that match the specified IPv6 address.

mac mac-address

(Optional) Displays the binding table entries that match the specified Media Access Control (MAC) address.

Command Modes


Privileged EXEC (#)

Command History

Release

Modification

12.2(50)SY

This command was introduced.

15.0(2)SE

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

15.3(1)S

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

Cisco IOS XE Release 3.2SE.

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

Cisco IOS XE Release 3.9S

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

Usage Guidelines

The show ipv6 neighbor binding command displays the contents of the binding table. The display output can be specified by the specified VLAN, interface, IPv6 address, or MAC address. If no keywords or arguments are entered, all binding table contents are displayed.

The following keyword and argument combinations are allowed:

  • vlan vlan-id: Displays all entries for the specified VLAN.
  • interface type number: Displays all entries for the specified interface.
  • ipv6 ipv6-address + interface type number + vlan vlan-id: Displays a single entry that matches these three keyword and argument combinations.
  • ipv6 ipv6-address + interface type number: Displays all entries for the specified IPv6 address and interface.
  • ipv6 ipv6-address: Displays all entries for the specified IPv6 address.

Examples

The following example displays the contents of a binding table:

Device# show ipv6 neighbor binding

address DB has 4 entries
Codes: L - Local, S - Static, ND - Neighbor Discovery
Preflevel (prlvl) values:
1:Not secure          2:MAC and LLA match   3:Cga authenticated   
4:Dhcp assigned       5:Cert authenticated  6:Cga and Cert auth   
7:Trusted port        8:Statically assigned 
    IPv6 address            Link-Layer addr Interface   vlan  prlvl age state    Time left
ND  FE80::A8BB:CCFF:FE01:F500  AABB.CC01.F500  Et0/0     100  0002    0 REACHABLE  8850
L   FE80::21D:71FF:FE99:4900   001D.7199.4900  Vl100     100  0080 7203 DOWN       N/A
ND  2001:600::1                AABB.CC01.F500  Et0/0     100  0003    0 REACHABLE  3181
ND  2001:300::1                AABB.CC01.F500  Et0/0     100  0007    0 REACHABLE  9559
ND  2001:100::2                AABB.CC01.F600  Et1/0     200  0002    0 REACHABLE  9196
L   2001:400::1                001D.7199.4900  Vl100     100  0080 7188 DOWN       N/A
S   2001:500::1                000A.000B.000C  Fa4/13    300  0080 8676 STALE      N/A

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

Table 8 show ipv6 neighbor binding Field Descriptions

Field

Description

address DB has n entries

Number of entries in the specified database.


Note


On devices that do not supported VLANs, the vlan collumn displays 0.


Related Commands

Command

Description

ipv6 neighbor binding

Changes the defaults of neighbor binding entries in a binding table.

show ipv6 neighbors

To display IPv6 neighbor discovery (ND) cache information, use the show ipv6 neighbors command in user EXEC or privileged EXEC mode.

show ipv6 neighbors [ interface-type interface-number | ipv6-address | ipv6-hostname | statistics ]

Syntax Description

interface-type

(Optional) Specifies the type of the interface from which IPv6 neighbor information is to be displayed.

interface-number

(Optional) Specifies the number of the interface from which IPv6 neighbor information is to be displayed.

ipv6-address

(Optional) Specifies the IPv6 address of the neighbor.

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

ipv6-hostname

(Optional) Specifies the IPv6 hostname of the remote networking device.

statistics

(Optional) Displays ND cache statistics.

Command Default

All IPv6 ND cache entries are listed.

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

12.2(2)T

This command was introduced.

12.2(8)T

This command was modified. Support for static entries in the IPv6 neighbor discovery cache was 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.

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 integrated into Cisco IOS XE Release 2.1 and introduced on Cisco ASR 1000 Series devices.

Cisco IOS XE Release 2.6

This command was modified. This command was updated to display the number and the limit of ND cache entries on a particular interface.

15.1(3)T

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

15.2(2)SNG

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

15.3(1)S

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

Cisco IOS XE Release 3.2SE

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

Usage Guidelines

When the interface-type and interface-number arguments are not specified, cache information for all IPv6 neighbors is displayed. Specifying the interface-type and interface-number arguments displays only cache information about the specified interface.

Specifying the statistics keyword displays ND cache statistics.

Examples

The following is sample output from the show ipv6 neighbors command when entered with an interface type and number:

Device# show ipv6 neighbors ethernet 2
IPv6 Address                              Age Link-layer Addr State Interface
2000:0:0:4::2                               0 0003.a0d6.141e  REACH Ethernet2
FE80::203:A0FF:FED6:141E                    0 0003.a0d6.141e  REACH Ethernet2
3001:1::45a                                 - 0002.7d1a.9472  REACH Ethernet2

The following is sample output from the show ipv6 neighbors command when entered with an IPv6 address:

Device# show ipv6 neighbors 2000:0:0:4::2
IPv6 Address                              Age Link-layer Addr State Interface
2000:0:0:4::2                               0 0003.a0d6.141e  REACH Ethernet2

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

Table 9 show ipv6 neighbors Field Descriptions

Field

Description

IPv6 Address

IPv6 address of neighbor or interface.

Age

Time (in minutes) since the address was confirmed to be reachable. A hyphen (-) indicates a static entry.

Link-layer Addr

MAC address. If the address is unknown, a hyphen (-) is displayed.

State

The state of the neighbor cache entry. Following are the states for dynamic entries in the IPv6 neighbor discovery cache:

  • INCMP (Incomplete)--Address resolution is being performed on the entry. A neighbor solicitation message has been sent to the solicited-node multicast address of the target, but the corresponding neighbor advertisement message has not yet been received.
  • REACH (Reachable)--Positive confirmation was received within the last ReachableTime milliseconds that the forward path to the neighbor was functioning properly. While in REACH state, the device takes no special action as packets are sent.
  • STALE--More than ReachableTime milliseconds have elapsed since the last positive confirmation was received that the forward path was functioning properly. While in STALE state, the device takes no action until a packet is sent.
  • DELAY--More than ReachableTime milliseconds have elapsed since the last positive confirmation was received that the forward path was functioning properly. A packet was sent within the last DELAY_FIRST_PROBE_TIME seconds. If no reachability confirmation is received within DELAY_FIRST_PROBE_TIME seconds of entering the DELAY state, send a neighbor solicitation message and change the state to PROBE.
  • PROBE--A reachability confirmation is actively sought by resending neighbor solicitation messages every RetransTimer milliseconds until a reachability confirmation is received.
  • ????--Unknown state.

Following are the possible states for static entries in the IPv6 neighbor discovery cache:

  • INCMP (Incomplete)--The interface for this entry is down.
  • REACH (Reachable)--The interface for this entry is up.
Note   

Reachability detection is not applied to static entries in the IPv6 neighbor discovery cache; therefore, the descriptions for the INCMP (Incomplete) and REACH (Reachable) states are different for dynamic and static cache entries.

Interface

Interface from which the address was reachable.

The following is sample output from the show ipv6 neighbors command with the statistics keyword:

Device# show ipv6 neighbor statistics
 
IPv6 ND Statistics
 Entries 2, High-water 2, Gleaned 1, Scavenged 0
 Entry States
   INCMP 0  REACH 0  STALE 2  GLEAN 0  DELAY 0  PROBE 0
 Resolutions (INCMP)
   Requested 1, timeouts 0, resolved 1, failed 0
   In-progress 0, High-water 1, Throttled 0, Data discards 0
 Resolutions (PROBE)
   Requested 3, timeouts 0, resolved 3, failed 0

The table below describes the significant fields shown in this display:

Table 10 show ipv6 neighbors statistics Field Descriptions

Field

Description

Entries

Total number of ND neighbor entries in the ND cache.

High-Water

Maximum amount (so far) of ND neighbor entries in ND cache.

Gleaned

Number of ND neighbor entries gleaned (that is, learned from a neighbor NA or other ND packet).

Scavenged

Number of stale ND neighbor entries that have timed out and been removed from the cache.

Entry States

Number of ND neighbor entries in each state.

Resolutions (INCMP)

Statistics for neighbor resolutions attempted in INCMP state (that is, resolutions prompted by a data packet). Details about the resolutions attempted in INCMP state are follows:

  • Requested--Total number of resolutions requested.
  • Timeouts--Number of timeouts during resolutions.
  • Resolved--Number of successful resolutions.
  • Failed--Number of unsuccessful resolutions.
  • In-progress--Number of resolutions in progress.
  • High-water--Maximum number (so far) of resolutions in progress.
  • Throttled--Number of times resolution request was ignored due to maximum number of resolutions in progress limit.
  • Data discards--Number of data packets discarded that are awaiting neighbor resolution.

Resolutions (PROBE)

Statistics for neighbor resolutions attempted in PROBE state (that is, re-resolutions of existing entries prompted by a data packet):

  • Requested--Total number of resolutions requested.
  • Timeouts--Number of timeouts during resolutions.
  • Resolved--Number of successful resolutions.
  • Failed--Number of unsuccessful resolutions.

show ipv6 nhrp

To display Next Hop Resolution Protocol (NHRP) mapping information, use the show ipv6 nhrp command in user EXEC or privileged EXEC mode.

show ipv6 nhrp [ dynamic [ipv6-address] | incomplete | static ] [ address | interface ] [ brief | detail ] [purge]

Syntax Description

dynamic

(Optional) Displays dynamic (learned) IPv6-to-nonbroadcast multiaccess address (NBMA) mapping entries. Dynamic NHRP mapping entries are obtained from NHRP resolution/registration exchanges. See the table below for types, number ranges, and descriptions.

ipv6-address

(Optional) The IPv6 address of the cache entry.

incomplete

(Optional) Displays information about NHRP mapping entries for which the IPv6-to-NBMA is not resolved. See the table below for types, number ranges, and descriptions.

static

(Optional) Displays static IPv6-to-NBMA address mapping entries. Static NHRP mapping entries are configured using the ipv6 nhrp map command. See the table below for types, number ranges, and descriptions.

address

(Optional) NHRP mapping entry for specified protocol addresses.

interface

(Optional) NHRP mapping entry for the specified interface. See the table below for types, number ranges, and descriptions.

brief

(Optional) Displays a short output of the NHRP mapping.

detail

(Optional) Displays detailed information about NHRP mapping.

purge

(Optional) Displays NHRP purge information.

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

12.4(20)T

This command was introduced.

Usage Guidelines

The table below lists the valid types, number ranges, and descriptions for the optional interface argument.


Note


The valid types can vary according to the platform and interfaces on the platform.


Table 11 Valid Types, Number Ranges, and Interface Description

Valid Types

Number Ranges

Interface Descriptions

async

1

Async

atm

0 to 6

ATM

bvi

1 to 255

Bridge-Group Virtual Interface

cdma-ix

1

CDMA Ix

ctunnel

0 to 2147483647

C-Tunnel

dialer

0 to 20049

Dialer

ethernet

0 to 4294967295

Ethernet

fastethernet

0 to 6

FastEthernet IEEE 802.3

lex

0 to 2147483647

Lex

loopback

0 to 2147483647

Loopback

mfr

0 to 2147483647

Multilink Frame Relay bundle

multilink

0 to 2147483647

Multilink-group

null

0

Null

port-channel

1 to 64

Port channel

tunnel

0 to 2147483647

Tunnel

vif

1

PGM multicast host

virtual-ppp

0 to 2147483647

Virtual PPP

virtual-template

1 to 1000

Virtual template

virtual-tokenring

0 to 2147483647

Virtual Token Ring

xtagatm

0 to 2147483647

Extended tag ATM

Examples

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

Router# show ipv6 nhrp
2001:0db8:3c4d:0015::1a2f:3d2c/48  via 
2001:0db8:3c4d:0015::1a2f:3d2c
Tunnel0 created 6d05h, never expire

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

Table 12 show ipv6 nhrp Field Descriptions

Field

Description

2001:0db8:3c4d:0015::1a2f: 3d2c/48

Target network.

2001:0db8:3c4d:0015::1a2f:3d2c

Next hop to reach the target network.

Tunnel0

Interface through which the target network is reached.

created 6d05h

Length of time since the entry was created (dayshours).

never expire

Indicates that static entries never expire.

The following is sample output from the show ipv6 nhrpcommand using the brief keyword:

Router# show ipv6 nhrp brief
2001:0db8:3c4d:0015:0000:0000:1a2f:3d2c/48 
 via 2001:0db8:3c4d:0015:0000:0000:1a2f:3d2c
Interface: Tunnel0 Type: static 
NBMA address: 10.11.11.99 

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

Table 13 show ipv6 nhrp brief Field Descriptions

Field

Description

2001:0db8:3c4d:0015:0000:0000: 1a2f:3d2c/48

Target network.

via 2001:0db8:3c4d:0015:0000:0000: 1a2f:3d2c

Next Hop to reach the target network.

Interface: Tunnel0

Interface through which the target network is reached.

Type: static

Type of tunnel. The types can be one of the following:

  • dynamic--NHRP mapping is obtained dynamically. The mapping entry is created using information from the NHRP resolution and registrations.
  • static--NHRP mapping is configured statically. Entries configured by the ipv6 nhrp map command are marked static.
  • incomplete--The NBMA address is not known for the target network.

Related Commands

Command

Description

ipv6 nhrp map

Statically configures the IPv6-to-NBMA address mapping of IP destinations connected to an NBMA network.

show ipv6 nhrp multicast

To display Next Hop Resolution Protocol (NHRP) multicast mapping information, use the show ipv6 nhrp multicastcommand in user EXEC or privileged EXEC mode.

show ipv6 nhrp multicast [ ipv4-address | interface | ipv6-address ]

Syntax Description

ipv4-address

(Optional) The IPv4 address of the multicast mapping entry.

interface

(Optional) All multicast mapping entries of the NHRP network for the interface. See the table below for interface types, number ranges, and descriptions.

ipv6-address

(Optional) The IPv6 address of the multicast mapping entry.

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

12.4(20)T

This command was introduced.

15.2(1)T

This command was modified. The ipv4-address argument was added.

Usage Guidelines

The table below lists valid interface types, number ranges, and descriptions for the optional interface argument.


Note


The valid types can vary according to the platform and interfaces on the platform.


Table 14 Valid Types, Number Ranges, and Interface Descriptions

Valid Types

Number Ranges

Interface Descriptions

async

1

Async

atm

0 to 6

ATM

bvi

1 to 255

Bridge-Group Virtual Interface

cdma-ix

1

CDMA Ix

ctunnel

0 to 2147483647

C-Tunnel

dialer

0 to 20049

Dialer

ethernet

0 to 4294967295

Ethernet

fastethernet

0 to 6

FastEthernet IEEE 802.3

lex

0 to 2147483647

Lex

loopback

0 to 2147483647

Loopback

mfr

0 to 2147483647

Multilink Frame Relay bundle

multilink

0 to 2147483647

Multilink-group

null

0

Null

port-channel

1 to 64

Port channel

tunnel

0 to 2147483647

Tunnel

vif

1

PGM multicast host

virtual-ppp

0 to 2147483647

Virtual PPP

virtual-template

1 to 1000

Virtual template

virtual-tokenring

0 to 2147483647

Virtual Token Ring

xtagatm

0 to 2147483647

Extended tag ATM

Examples

The following is sample output from the show ipv6 nhrp multicast command. Fields in the display are self-explanatory.

Router# show ipv6 nhrp multicast
  I/F     NBMA address  
Tunnel1    192.169.2.10    Flags: dynamic
Tunnel1    192.169.2.11    Flags: dynamic

Related Commands

Command

Description

ipv6 nhrp map

Statically configures the IPv6-to-NBMA address mapping of IPv6 destinations connected to an NBMA network.

show ipv6 nhrp nhs

To display Next Hop Resolution Protocol (NHRP) next hop server (NHS) information, use the show ipv6 nhrp nhs command in user EXEC or privileged EXEC mode.

show ipv6 nhrp nhs [interface-type interface-number] [ detail | redundancy ] [ cluster number | preempted | running | waiting ]

Syntax Description

interface-type

(Optional) Type of interface for which NHS information should be displayed. See the table below for types, number ranges, and descriptions.

interface-number

(Optional) Interface or subinterface number. For more information about the numbering syntax for your networking device, use the question mark (?) online help function.

detail

(Optional) Displays detailed NHS information.

redundancy

(Optional) Displays NHS recovery information.

cluster number

(Optional) Displays NHS recovery cluster information. The range is from 0 to 10.

preempted

(Optional) Displays NHSs that come up and are preempted.

running

(Optional) Displays NHSs that are responding or expecting replies.

waiting

(Optional) Displays NHSs that are waiting to be scheduled.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.4(20)T

This command was introduced.

15.1(2)T

This command was modified. The redundancy, cluster number, preempted, running, and waiting keywords and argument were added.

Usage Guidelines

The table below lists the valid types, number ranges, and descriptions for the optional interface-interfaceargument.


Note


The valid types can vary according to the platform and interfaces on the platform.


Table 15 Valid Types, Number Ranges, and Interface Descriptions

Valid Types

Number Ranges

Interface Descriptions

async

1

Async

atm

0 to 6

ATM

bvi

1 to 255

Bridge-Group Virtual Interface

cdma-ix

1

CDMA Ix

ctunnel

0 to 2147483647

C-Tunnel

dialer

0 to 20049

Dialer

ethernet

0 to 4294967295

Ethernet

fastethernet

0 to 6

Fast Ethernet IEEE 802.3

lex

0 to 2147483647

Lex

loopback

0 to 2147483647

Loopback

mfr

0 to 2147483647

Multilink Frame Relay bundle

multilink

0 to 2147483647

Multilink group

null

0

Null

port-channel

1 to 64

Port channel

tunnel

0 to 2147483647

Tunnel

vif

1

PGM multicast host

virtual-ppp

0 to 2147483647

Virtual PPP

virtual-template

1 to 1000

Virtual template

virtual-tokenring

0 to 2147483647

Virtual Token Ring

xtagatm

0 to 2147483647

Extended tag ATM

Examples

The following is sample output from the show ipv6 nhrp nhs command:

Router# show ipv6 nhrp nhs
Legend: E=Expecting replies, R=Responding, W=Waiting
Tunnel0:
192.0.2.1  W priority = 2 cluster = 0
192.0.2.2  RE priority = 0 cluster = 0
192.0.2.3  RE priority = 1 cluster = 0

The following is sample output from the show ipv6 nhrp nhs redundancy command:

Router# show ipv6 nhrp nhs redundancy
Legend: E=Expecting replies, R=Responding, W=Waiting
No.  Interface  Cluster  NHS         Priority  Cur-State  Cur-Queue  Prev-State Prev-Queue
1    Tunnel0    5        2001::101   1         E          Running     RE        Running
No.  Interface  Cluster  Status  Max-Con  Total-NHS Responding Expecting Waiting Fallback
1    Tunnel0    5        Disable Not Set  1         0          1         0       0

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

Table 16 show ipv6 nhrp nhs Field Descriptions

Field

Description

Tunnel0

Interface through which the target network is reached.

priority

Priority value assigned to the NHS.

cluster

Group to which the NHS belong.

E=Expecting replies

NHSs that are active and expecting replies.

R=Responding

NHSs that are active and responding.

W=Waiting

NHSs that are preempted and are not in the active probe list.

Related Commands

Command

Description

ip nhrp map

Statically configures the IP-to-NBMA address mapping of IP destinations connected to an NBMA network.

show ip nhrp

Displays NHRP mapping information.

show ip nhrp multicast

Displays NHRP multicast mapping information.

show ip nhrp summary

Displays NHRP mapping summary information.

show ip nhrp traffic

Displays NHRP traffic statistics.

show ipv6 nhrp summary

To display Next Hop Resolution Protocol (NHRP) mapping summary information, use the show ipv6 nhrp summarycommand in user EXEC or privileged EXEC mode.

show ipv6 nhrp summary

Syntax Description

This command has no arguments or keywords.

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

12.4(20)T

This command was introduced.

Usage Guidelines

Use this command to monitor NHRP.

Examples

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

Router# show ipv6 nhrp summary
IPV6 NHRP cache 1 entry, 256 bytes
    1 static  0 dynamic  0 incomplete

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

Table 17 show ipv6 nhrp summary Field Descriptions

Field Output

Description

static

NHRP mapping is configured statically. Entries configured by the ipv6 nhrp map command are marked static.

dynamic

NHRP mapping is obtained dynamically. The mapping entry is created using information from the NHRP resolution and registrations

incomplete

The nonbroadcast multiaccess (NBMA) address is not known for the target network.

Related Commands

Command

Description

ip nhrp map

Statically configures the IPv6-to-NBMA address mapping of IP destinations connected to an NBMA network.

show ipv6 nhrp

Displays NHRP mapping information.

show ipv6 nhrp traffic

To display Next Hop Resolution Protocol (NHRP) traffic statistics, use the show ipv6 nhrp trafficcommand in privileged EXEC mode.

show ipv6 nhrp traffic [ interface tunnel number ]

Syntax Description

interface

(Optional) Displays NHRP traffic information for a given interface.

tunnel number

(Optional) Specifies the tunnel interface number.

Command Modes


Privileged EXEC (#)

Command History

Release

Modification

12.4(20)T

This command was introduced.

Usage Guidelines

Use this command to monitor NHRP traffic information.

Examples

The following example provides output for IPv6 NHRP traffic statistics:

Router# show ipv6 nhrp traffic
Tunnel0: Max-send limit:100Pkts/10Sec, Usage:0%
Sent: Total 8
1 Resolution Request 1 Resolution Reply 6 Registration Request
0 Registration Reply 0 Purge Request 0 Purge Reply
0 Error Indication 0 Traffic Indication
Rcvd: Total 5
1 Resolution Request 1 Resolution Reply 0 Registration Request
2 Registration Reply 0 Purge Request 0 Purge Reply
0 Error Indication 1 Traffic Indication

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

Table 18 show ipv6 nhrp traffic Field Descriptions

Field Output

Description

tunnel0:

Displays information about a specified tunnel; in thhis case, Tunnel0.

Max-send limit: 100Pkts/10Sec, Usage: 0%

The maximum number of packets allowed to be sent in a specified time, and the current usage.

Sent: Total 8

Number of packets sent.

1 Resolution Request 1 Resolution Reply 6 Registration Request 0 Registration Reply 0 Purge Request 0 Purge Reply

Description and breakdown of of the types of packets sent.

0 Error Indication 0 Traffic Indication

Number of errors in the sent packets.

Rcvd: Total 5

Number of packets received.

1 Resolution Request 1 Resolution Reply 0 Registration Request 2 Registration Reply 0 Purge Request 0 Purge Reply

Description and breakdown of the types of packets received.

0 Error Indication 1 Traffic Indication

Number of errors in the sent packets.


 
	 

show ipv6 ospf

To display general information about Open Shortest Path First ( OSPF) routing processes, use the show ipv6 ospf command in user EXEC or privileged EXEC mode.

show ipv6 ospf [process-id] [area-id] [rate-limit]

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

area-id

(Optional) Area ID. This argument displays information about a specified area only.

rate-limit

(Optional) Rate-limited link-state advertisements (LSAs). This keyword displays LSAs that are currently being rate limited, together with the remaining time to the next generation.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)S.

12.3(4)T

Command output is changed when authentication is enabled.

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.

12.4(9)T

Command output was updated to display OSPF for IPv6 encryption information.

12.4(15)XF

Command output was modified to include VMI PPPoE process-level values.

12.4(15)T

This command was integrated into Cisco IOS Release 12.4(15)T

12.2(33)SXH

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

12.2(33)SRC

The rate-limit keyword was added. Command output was modified to include the configuration values for SPF and LSA throttling timers.

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 integrated into Cisco IOS XE Release 2.1.

15.0(1)M

This command was integrated into Cisco IOS Release 12.5(1)M.

15.1(2)T

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

12.2(50)SY

This command was integrated into Cisco IOS Release 12.2(50)SY.

15.1(1)SG

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

15.0(1)SY

This command was integrated into Cisco IOS Release 15.0(1)SY.

15.2(2)SNG

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

Examples

Examples

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

Device# show ipv6 ospf
Routing Process "ospfv3 1" with ID 10.10.10.1
 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
 Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs
 LSA group pacing timer 240 secs
 Interface flood pacing timer 33 msecs
 Retransmission pacing timer 66 msecs
 Number of external LSA 0. Checksum Sum 0x000000
 Number of areas in this device is 1. 1 normal 0 stub 0 nssa
    Area BACKBONE(0)
        Number of interfaces in this area is 1
        MD5 Authentication, SPI 1000
        SPF algorithm executed 2 times
        Number of LSA 5. Checksum Sum 0x02A005
        Number of DCbitless LSA 0
        Number of indication LSA 0
        Number of DoNotAge LSA 0
        Flood list length 0

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

Table 19 show ipv6 ospf Field Descriptions

Field

Description

Routing process "ospfv3 1" with ID 10.10.10.1

Process ID and OSPF device ID.

LSA group pacing timer

Configured LSA group pacing timer (in seconds).

Interface flood pacing timer

Configured LSA flood pacing timer (in milliseconds).

Retransmission pacing timer

Configured LSA retransmission pacing timer (in milliseconds).

Number of areas

Number of areas in device, area addresses, and so on.

Examples

The following sample output shows the show ipv6 ospf command with area encryption information:

Device# show ipv6 ospf 
Routing Process "ospfv3 1" with ID 10.0.0.1 
It is an area border device 
SPF schedule delay 5 secs, Hold time between two SPFs 10 secs 
Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs 
LSA group pacing timer 240 secs 
Interface flood pacing timer 33 msecs 
Retransmission pacing timer 66 msecs 
Number of external LSA 0. Checksum Sum 0x000000 
Number of areas in this device is 2. 2 normal 0 stub 0 nssa 
Reference bandwidth unit is 100 mbps 
    Area BACKBONE(0) 
        Number of interfaces in this area is 2 
        SPF algorithm executed 3 times 
        Number of LSA 31. Checksum Sum 0x107493 
        Number of DCbitless LSA 0 
        Number of indication LSA 0 
        Number of DoNotAge LSA 20 
        Flood list length 0 
    Area 1 
        Number of interfaces in this area is 2 
        NULL Encryption SHA-1 Auth, SPI 1001 
        SPF algorithm executed 7 times 
        Number of LSA 20. Checksum Sum 0x095E6A 
        Number of DCbitless LSA 0 
        Number of indication LSA 0 
        Number of DoNotAge LSA 0 
        Flood list length 0 

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

Table 20 show ipv6 ospf with Area Encryption Information Field Descriptions

Field

Description

Area 1

Subsequent fields describe area 1.

NULL Encryption SHA-1 Auth, SPI 1001

Displays the encryption algorithm (in this case, null, meaning no encryption algorithm is used), the authentication algorithm (SHA-1), and the security policy index (SPI) value (1001).

The following example displays the configuration values for SPF and LSA throttling timers:

Device# show ipv6 ospf
 Routing Process "ospfv3 1" with ID 10.9.4.1
 Event-log enabled, Maximum number of events: 1000, Mode: cyclic
 It is an autonomous system boundary device
 Redistributing External Routes from,
    ospf 2
 Initial SPF schedule delay 5000 msecs
 Minimum hold time between two consecutive SPFs 10000 msecs
 Maximum wait time between two consecutive SPFs 10000 msecs
 Minimum LSA interval 5 secs
 Minimum LSA arrival 1000 msecs

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

Table 21 show ipv6 ospf with SPF and LSA Throttling Timer Field Descriptions

Field

Description

Initial SPF schedule delay

Delay time of SPF calculations.

Minimum hold time between two consecutive SPFs

Minimum hold time between consecutive SPF calculations.

Maximum wait time between two consecutive SPFs 10000 msecs

Maximum hold time between consecutive SPF calculations.

Minimum LSA interval 5 secs

Minimum time interval (in seconds) between link-state advertisements.

Minimum LSA arrival 1000 msecs

Maximum arrival time (in milliseconds) of link-state advertisements.

The following example shows information about LSAs that are currently being rate limited:

Device# show ipv6 ospf rate-limit
List of LSAs that are in rate limit Queue
    LSAID: 0.0.0.0 Type: 0x2001 Adv Rtr: 10.55.55.55 Due in: 00:00:00.500
    LSAID: 0.0.0.0 Type: 0x2009 Adv Rtr: 10.55.55.55 Due in: 00:00:00.500

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

Table 22 show ipv6 ospf rate-limit Field Descriptions

Field

Description

LSAID

Link-state ID of the LSA.

Type

Description of the LSA.

Adv Rtr

ID of the advertising device.

Due in:

Remaining time until the generation of the next event.


 
	 

show ipv6 ospf border-routers

To display the internal Open Shortest Path First (OSPF) routing table entries to an Area Border Router (ABR) and Autonomous System Boundary Router (ASBR), use the show ipv6 ospf border-routers command in user EXEC or privileged EXEC mode.

show ip ospf [process-id] border-routers

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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.

Examples

The following is sample output from the show ipv6 ospf border-routers command:

Router# show ipv6 ospf border-routers
 
OSPFv3 Process 1 internal Routing Table
Codes: i - Intra-area route, I - Inter-area route
i 172.16.4.4 [2] via FE80::205:5FFF:FED3:5808, FastEthernet0/0, ABR, Area 1, SPF 13
i 172.16.4.4 [1] via FE80::205:5FFF:FED3:5406, POS4/0, ABR, Area 0, SPF 8
i 172.16.3.3 [1] via FE80::205:5FFF:FED3:5808, FastEthernet0/0, ASBR, Area 1, SPF 3

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

Table 23 show ipv6 ospf border-routers Field Descriptions

Field

Description

i - Intra-area route, I - Inter-area route

The type of this route.

172.16.4.4, 172.16.3.3

Router ID of the destination router.

[2], [1]

Metric used to reach the destination router.

FE80::205:5FFF:FED3:5808, FE80::205:5FFF:FED3:5406, FE80::205:5FFF:FED3:5808

Link-local routers.

FastEthernet0/0, POS4/0

The interface on which the IPv6 OSPF protocol is configured.

ABR

Area border router.

ASBR

Autonomous system boundary router.

Area 0, Area 1

The area ID of the area from which this route is learned.

SPF 13, SPF 8, SPF 3

The internal number of the shortest path first (SPF) calculation that installs this route.

show ipv6 ospf database

To display lists of information related to the Open Shortest Path First (OSPF) database for a specific router, use the show ipv6 ospf database command in user EXEC or privileged EXEC mode. The various forms of this command deliver information about different OSPF link-state advertisements (LSAs).

show ipv6 ospf [ process-id [area-id] ] database [ adv-router router-id | self-originate ] [internal]

show ipv6 ospf [ process-id [area-id] ] database [database-summary]

{ show ipv6 ospf [ process-id [area-id] ] database [ external [ipv6-prefix] [link-state-id] ] | [ adv-router router-id | self-originate ] [internal] }

show ipv6 ospf [ process-id [area-id] ] database [grace]

{ show ipv6 ospf [ process-id [area-id] ] database [ inter-area prefix [ipv6-prefix] [link-state-id] ] | [ adv-router router-id | self-originate ] [internal] }

{ show ipv6 ospf [ process-id [area-id] ] database [ inter-area router [destination-router-id] [link-state-id] ] | [ adv-router router-id | self-originate ] [internal] }

show ipv6 ospf [ process-id [area-id] ] database [ link [ interface interface-name ] [link-state-id] ] [ adv-router router-id | self-originate ] [internal]

show ipv6 ospf [ process-id [area-id] ] database [ network [link-state-id] ] [ adv-router router-id | self-originate ] [internal]

show ipv6 ospf [ process-id [area-id] ] database [ nssa-external [ipv6-prefix] [link-state-id] ] [ adv-router router-id | self-originate ] [internal]

show ipv6 ospf [ process-id [area-id] ] database [ prefix [ ref-lsa { router | network } ] [link-state-id] ] [ adv-router router-id | self-originate ] [internal]

show ipv6 ospf [ process-id [area-id] ] database [ router [link-state-id] ] [ adv-router router-id | self-originate ] [internal]

show ipv6 ospf [ process-id [area-id] ] database [ [ router | network | [ external ipv6-prefix | nssa-external ipv6-prefix | inter-area { prefix ipv6-prefix | router } ] | link | prefix ] | database-summary ] [ adv-router router-id | self-originate ] [internal]

show ipv6 ospf [ process-id [area-id] ] database [ unknown [ { area | as | link } [link-state-id] ] ] [ adv-router router-id | self-originate ] [internal]

Syntax Description

process-id

(Optional) Displays information only about a specified process.

area-id

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

adv-router router-id

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

self-originate

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

internal

(Optional) Internal LSA information.

database-summary

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

external

(Optional) Displays information only about the external LSAs.

ipv6-prefix

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

link-state-id

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

inter-area prefix

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

inter-area router

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

destination-router-id

(Optional) The specified destination router ID.

link

(Optional) Displays information about the link LSAs.

interface

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

interface-name

(Optional) Specifies the LSA interface.

network

(Optional) Displays information only about the network LSAs.

nssa-external

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

prefix

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

ref-lsa {router | network

(Optional) Further filters the prefix LSA type.

router

(Optional) Displays information only about the router LSAs.

unknown

(Optional) Displays all LSAs with unknown types.

area

(Optional) Filters unknown area LSAs.

as

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

link

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

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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

The grace keyword was added to show information about OSPFv3 graceful restart.

Usage Guidelines

The adv-router keyword requires a router ID. The self-originate keyword displays only those LSAs that originated from the local router. Both of these keywords can be appended to all other keywords used with the show ipv6 ospf database command to provide more detailed information.

Examples

The following is sample output from the show ipv6 ospf database command when no arguments or keywords are used:

Router# show ipv6 ospf database 
            OSPFv3 Router with ID (172.16.4.4) (Process ID 1)
                Router Link States (Area 0)
ADV Router         Age         Seq#        Fragment ID   Link count  Bits
172.16.4.4         239         0x80000003  0             1           B
172.16.6.6         239         0x80000003  0             1           B
            Inter Area Prefix Link States (Area 0)
ADV Router         Age         Seq#        Prefix
172.16.4.4         249         0x80000001  FEC0:3344::/32
172.16.4.4         219         0x80000001  FEC0:3366::/32
172.16.6.6         247         0x80000001  FEC0:3366::/32
172.16.6.6         193         0x80000001  FEC0:3344::/32
172.16.6.6         82          0x80000001  FEC0::/32
            Inter Area Router Link States (Area 0)
ADV Router         Age         Seq#        Link ID    Dest RtrID
172.16.4.4         219         0x80000001  50529027   172.16.3.3
172.16.6.6         193         0x80000001  50529027   172.16.3.3
          
            Link (Type-8) Link States (Area 0)
ADV Router         Age         Seq#        Link ID    Interface
172.16.4.4         242         0x80000002  14         PO4/0
172.16.6.6         252         0x80000002  14         PO4/0
            Intra Area Prefix Link States (Area 0)
ADV Router         Age         Seq#        Link ID    Ref-lstype  Ref-LSID
172.16.4.4         242         0x80000002  0          0x2001      0
172.16.6.6         252         0x80000002  0          0x2001      0

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

Table 24 show ipv6 ospf database Field Descriptions

Field

Description

ADV Router

Advertising router ID.

Age

Link-state age.

Seq#

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

Link ID

Interface ID number.

Ref-lstype

Referenced link-state type.

Ref-LSID

Referenced link-state ID.

The following is sample output from the show ipv6 ospf database command with the router self-originate keywords:

Router# show ipv6 ospf database router self-originate
 
            OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
            Router Link States (Area 0)
  LS age: 383
  Options: (V6-Bit E-Bit R-bit DC-Bit)
  LS Type: Router Links
  Link State ID: 0
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000003
  Checksum: 0x7543
  Length: 40
  Area Border Router
  Number of Links: 1
    Link connected to: another Router (point-to-point)
      Link Metric: 1
      Local Interface ID: 14
      Neighbor Interface ID: 14
      Neighbor Router ID: 172.16.4.4

The following is sample output from the show ipv6 ospf database command with the networkkeyword:

Router# show ipv6 ospf database network
 
            OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
            Net Link States (Area 1)
  LS age: 419
  Options: (V6-Bit E-Bit R-bit DC-Bit)
  LS Type: Network Links
  Link State ID: 3 (Interface ID of Designated Router)
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000001
  Checksum: 0x8148
  Length: 32
        Attached Router: 172.16.6.6
        Attached Router: 172.16.3.3

The following is sample output from the show ipv6 ospf database command with the link self-originatekeywords:

Router# show ipv6 ospf database link self-originate
 
            OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
            Link (Type-8) Link States (Area 0)
  LS age: 505
  Options: (V6-Bit E-Bit R-bit DC-Bit)
  LS Type: Link-LSA (Interface: POS4/0)
  Link State ID: 14 (Interface ID)
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000002
  Checksum: 0xABF6
  Length: 60
  Router Priority: 1
  Link Local Address: FE80::205:5FFF:FED3:6408
  Number of Prefixes: 2
  Prefix Address: FEC0:4466::
  Prefix Length: 32, Options: None
  Prefix Address: FEC0:4466::
  Prefix Length: 32, Options: None

The following is sample output from the show ipv6 ospf database command with the prefix self-originatekeywords:

Router# show ipv6 ospf database prefix self-originate
 
            OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
            Intra Area Prefix Link States (Area 0)
  Routing Bit Set on this LSA
  LS age: 552
  LS Type: Intra-Area-Prefix-LSA
  Link State ID: 0
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000002
  Checksum: 0xA910
  Length: 48
  Referenced LSA Type: 2001
  Referenced Link State ID: 0
  Referenced Advertising Router: 172.16.6.6
  Number of Prefixes: 2
  Prefix Address: FEC0:4466::
  Prefix Length: 32, Options: None, Metric: 1
  Prefix Address: FEC0:4466::
  Prefix Length: 32, Options: None, Metric: 1

The following is sample output from the show ipv6 ospf database command with the inter-area prefix self-originatekeywords:

Router# show ipv6 ospf database inter-area prefix self-originate
 
            OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
            Inter Area Prefix Link States (Area 0)
  LS age: 587
  LS Type: Inter Area Prefix Links
  Link State ID: 0
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000001
  Checksum: 0x1395
  Length: 32
  Metric: 1 
  Prefix Address: FEC0:3366::
  Prefix Length: 32, Options: None
  LS age: 532
  LS Type: Inter Area Prefix Links
  Link State ID: 1
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000001
  Checksum: 0x3197
  Length: 32
  Metric: 2 
  Prefix Address: FEC0:3344::
  Prefix Length: 32, Options: None
  LS age: 422
  LS Type: Inter Area Prefix Links
  Link State ID: 2
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000001
  Checksum: 0xCB74
  Length: 32
  Metric: 1 
  Prefix Address: FEC0::
  Prefix Length: 32, Options: None

The following is sample output from the show ipv6 ospf database command with the inter-area router self-originatekeywords:

Router# show ipv6 ospf database inter-area router self-originate
 
           OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
           Inter Area Router Link States (Area 0)
  LS age: 578
  Options: (V6-Bit E-Bit R-bit DC-Bit)
  LS Type: Inter Area Router Links
  Link State ID: 50529027
  Advertising Router: 172.16.6.6
  LS Seq Number: 80000001
  Checksum: 0x369F
  Length: 32
  Metric: 1 
  Destination Router ID: 172.16.3.3

The following is sample output from the show ipv6 ospf database command with the externalkeyword:

Router# show ipv6 ospf database external 
           OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
           Type-5 AS External Link States
  Routing Bit Set on this LSA
  LS age: 654
  LS Type: AS External Link
  Link State ID: 0
  Advertising Router: 172.16.3.3
  LS Seq Number: 80000001
  Checksum: 0x218D
  Length: 32
  Prefix Address: FEC0:3333::
  Prefix Length: 32, Options: None
  Metric Type: 2 (Larger than any link state path)
  Metric: 20 

The following is sample output from the show ipv6 ospf database command for a graceful-restart-capable router:

Router# show ipv6 ospf 1 database
            OSPFv3 Router with ID (10.2.2.2) (Process ID 1)
            Router Link States (Area 0)
ADV Router      Age         Seq#             Fragment ID  Link count  Bits
10.1.1.1         1949       0x8000000e          0            1        None 
10.2.2.2         2007       0x80000011          0            1        None 
            Link (Type-8) Link States (Area 0) 
ADV Router      Age         Seq#              Link ID    Interface 
10.1.1.1         180         0x80000006         1         PO0/2/0/0 
10.2.2.2        2007         0x80000006         1         PO0/2/0/0 
            Intra Area Prefix Link States (Area 0) 
ADV Router      Age         Seq#              Link ID    Ref-lstype  Ref-LSID 
10.1.1.1        180         0x80000006          0        0x2001          0 
10.2.2.2        2007        0x80000006          0        0x2001          0 
            Grace (Type-11) Link States (Area 0)
ADV Router      Age         Seq#                Link ID    Interface
10.2.2.2        2007        0x80000005            1        PO0/2/0/0

The following is sample outpet from the show ipv6 ospf database command with the grace keyword:

Router# show ipv6 ospf database grace
 
OSPFv3 Router with ID (10.3.33.3) (Process ID 1) 
Grace (Type-11) Link States (Area 0) 
  LS age: 2 
  LS Type: Grace Links (Interface: Ethernet0/0) 
  Link State ID: 3 (Interface ID) 
  Advertising Router: 10.2.2.2 
  LS Seq Number: 80000001 
  Checksum: 0xE3DD 
  Length: 36 
  Grace Period : 120 
        Graceful Restart Reason : Software reload/upgrade 

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

Table 25 show ipv6 ospf database Field Descriptions

Field

Description

Grace (Type-11)

Type 11 indicates that this router is graceful-restart capable.

LS Type: Grace Links (Interfece: Ethernet 0/0)

The link state type and interface used.

Grace Period : 120

The graceful-restart interval, in seconds.

Graceful Restart Reason: Software reload/upgrade

The reason graceful restart was activated .

Related Commands

Command

Description

show ipv6 ospf

Displays general information about OSPFv3 routing processes.

show ipv6 ospf graceful-restart

Displays OSPFv3 graceful restart information.

show ipv6 ospf interface

Displays OSPFv3-related interface information.


 
	 

show ipv6 ospf event

To display detailed information about IPv6 Open Shortest Path First (OSPF) events, use the show ipv6 ospf eventcommand in privileged EXEC mode.

show ipv6 ospf [process-id] event [ generic | interface | lsa | neighbor | reverse | rib | spf ]

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

generic

(Optional) Generic information regarding OSPF for IPv6 events.

interface

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

lsa

(Optional) LSA arrival and LSA generation events.

neighbor

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

reverse

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

rib

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

spf

(Optional) Scheduling and SPF run events.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.2(33)SRC

This command was introduced.

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.

12.2(33)XNE

This command was modified. It was integrated into Cisco IOS Release 12.2(33)XNE.

Usage Guidelines

An OSPF event log is kept for every OSPF instance. If you enter no keywords with the show ipv6 ospf event command, all information in the OSPF event log is displayed. Use the keywords to filter specific information.

Examples

The following example shows scheduling and SPF run events, LSA arrival and LSA generation events, in order from the oldest events to the latest generated events:

Router# show ipv6 ospf event spf lsa reverse
 
OSPFv3 Router with ID (10.0.0.1) (Process ID 1) 
1 *Sep 29 11:59:18.367: Rcv Changed Type-0x2009 LSA, LSID 10.0.0.0, Adv-Rtr 192.168.0.1, Seq# 80007699, Age 3600 
3 *Sep 29 11:59:18.367: Schedule SPF, Area 0, Change in LSID 10.0.0.0, LSA type P 
4 *Sep 29 11:59:18.367: Rcv Changed Type-0x2001 LSA, LSID 10.0.0.0, Adv-Rtr 192.168.0.1, Seq# 80007699, Age 2 
5 *Sep 29 11:59:18.367: Schedule SPF, Area 0, Change in LSID 10.0.0.0, LSA type R 
6 *Sep 29 11:59:18.367: Rcv Changed Type-0x2002 LSA, LSID 10.1.0.1, Adv-Rtr 192.168.0.1, Seq# 80007699, Age 3600 
8 *Sep 29 11:59:18.367: Schedule SPF, Area 0, Change in LSID 10.1.0.1, LSA type N 
9 *Sep 29 11:59:18.367: Rcv Changed Type-0x2001 LSA, LSID 10.0.0.0, Adv-Rtr 1.1.1.1, Seq# 80007699, Age 2 
10 *Sep 29 11:59:18.367: Schedule SPF, Area 0, Change in LSID 10.0.0.0, LSA type R 
11 *Sep 29 11:59:18.867: Starting SPF 
12 *Sep 29 11:59:18.867: Starting Intra-Area SPF in Area 0 
16 *Sep 29 11:59:18.867: Starting Inter-Area SPF in area 0 
17 *Sep 29 11:59:18.867: Starting External processing 
18 *Sep 29 11:59:18.867: Starting External processing in area 0 
19 *Sep 29 11:59:18.867: Starting External processing in area 1 
20 *Sep 29 11:59:18.867: End of SPF 
21 *Sep 29 11:59:19.367: Generate Changed Type-0x2003 LSA, LSID 10.0.0.4, Seq# 80000002, Age 3600, Area 1, Prefix 3000:11:22::/64 
23 *Sep 29 11:59:20.367: Rcv Changed Type-0x2009 LSA, LSID 10.0.0.0, Adv-Rtr 192.168.0.1, Seq# 8000769A, Age 2 
24 *Sep 29 11:59:20.367: Schedule SPF, Area 0, Change in LSID 10.0.0.0, LSA type P 
25 *Sep 29 11:59:20.367: Rcv Changed Type-0x2001 LSA, LSID 10.0.0.0, Adv-Rtr 192.168.0.1, Seq# 8000769A, Age 2 
26 *Sep 29 11:59:20.367: Schedule SPF, Area 0, Change in LSID 10.0.0.0, LSA type R 
27 *Sep 29 11:59:20.367: Rcv Changed Type-0x2002 LSA, LSID 10.1.0.1, Adv-Rtr 192.168.0.1, Seq# 8000769A, Age 2 
28 *Sep 29 11:59:20.367: Schedule SPF, Area 0, Change in LSID 10.1.0.1, LSA type N 
29 *Sep 29 11:59:20.367: Rcv Changed Type-0x2001 LSA, LSID 10.0.0.0, Adv-Rtr 1.1.1.1, Seq# 8000769A, Age 2 
30 *Sep 29 11:59:20.367: Schedule SPF, Area 0, Change in LSID 10.0.0.0, LSA type R 
31 *Sep 29 11:59:20.867: Starting SPF 
32 *Sep 29 11:59:20.867: Starting Intra-Area SPF in Area 0 
36 *Sep 29 11:59:20.867: Starting Inter-Area SPF in area 0 
37 *Sep 29 11:59:20.867: Starting External processing 
38 *Sep 29 11:59:20.867: Starting External processing in area 0 
39 *Sep 29 11:59:20.867: Starting External processing in area 1 
40 *Sep 29 11:59:20.867: End of SPF 

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

Table 26 show ip ospf Field Descriptions

Field

Description

OSPFv3 Router with ID (10.0.0.1) (Process ID 1)

Process ID and OSPF router ID.

Rcv Changed Type-0x2009 LSA

Description of newly arrived LSA.

LSID

Link-state ID of the LSA.

Adv-Rtr

ID of the advertising router.

Seq#

Link state sequence number (detects old or duplicate link state advertisements).

Age

Link state age (in seconds).

Schedule SPF

Enables SPF to run.

Area

OSPF area ID.

Change in LSID

Changed link-state ID of the LSA.

LSA type

LSA type.


 
	 

show ipv6 ospf flood-list

To display a list of Open Shortest Path First (OSPF) link-state advertisements (LSAs) waiting to be flooded over an interface, use the s how ipv6 ospf flood-listcommand in user EXEC or privileged EXEC mode.

show ipv6 ospf [process-id] [area-id] flood-list interface-type interface-number

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

area-id

(Optional) Displays information only about a specified area.

interface-type

Interface type over which the LSAs will be flooded.

interface-number

Interface number over which the LSAs will be flooded.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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.

Usage Guidelines

Use this command to display OSPF packet pacing.

Examples

The following is sample output from the show ipv6 ospf flood-list command:

Router# show ipv6 ospf flood-list 
OSPFv3 Router with ID (172.16.6.6) (Process ID 1)
 Interface POS4/0, Queue length 1
 Link state retransmission due in 14 msec
 Type    LS ID           ADV RTR         Seq NO      Age    Checksum
 0x2001  0               172.16.6.6      0x80000031  0      0x1971  
 Interface FastEthernet0/0, Queue length 0
 Interface ATM3/0, Queue length 0

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

Table 27 show ipv6 ospf flood-list Field Descriptions

Field

Description

OSPFv3 Router with ID (172.16.6.6) (Process ID 1)

Identification of the router for which information is displayed.

Interface POS4/0

Interface for which information is displayed.

Queue length

Number of LSAs waiting to be flooded.

Link state retransmission due in

Length of time before next link-state transmission.

Type

Type of LSA.

LS ID

Link-state ID of the LSA.

ADV RTR

IP address of advertising router.

Seq NO

Sequence number of LSA.

Age

Age of LSA (in seconds).

Checksum

Checksum of LSA.

show ipv6 ospf graceful-restart

To display Open Shortest Path First for IPv6 (OSPFv3) graceful restart information, use the show ipv6 ospf graceful-restart command in privileged EXEC mode.

show ipv6 ospf graceful-restart

Syntax Description

This command has no arguments or keywords.

Command Modes


Privileged EXEC

Command History

Release

Modification

Cisco IOS XE Release 2.1

This command was introduced.

15.0(1)M

This command was integrated into Cisco IOS Release 12.5(1)M.

12.2(33)SRE

This command was modified. It was integrated into Cisco IOS Release 12.2(33)SRE.

12.2(33)XNE

This command was modified. It was integrated into Cisco IOS Release 12.2(33)XNE.

15.1(1)SY

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

Usage Guidelines

Use the show ipv6 ospf graceful-restart command to discover information about the OSPFv3 graceful restart feature.

Examples

The following example displays OSPFv3 graceful restart information:

Router# show ipv6 ospf graceful-restart
Routing Process "ospf 1"
 Graceful Restart enabled
    restart-interval limit: 120 sec, last restart 00:00:15 ago (took 36 secs)
  Graceful Restart helper support enabled
  Router status : Active
  Router is running in SSO mode
  OSPF restart state : NO_RESTART 
  Router ID 10.1.1.1, checkpoint Router ID 10.0.0.0

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

Table 28 show ipv6 ospf graceful-restart Field Descriptions

Field

Description

Routing Process "ospf 1"

The OSPFv3 routing process ID.

Graceful Restart enabled

The graceful restart feature is enabled on this router.

restart-interval limit: 120 sec

The restart-interval limit.

last restart 00:00:15 ago (took 36 secs)

How long ago the last graceful restart occurred, and how long it took to occur.

Graceful Restart helper support enabled

Graceful restart helper mode is enabled. Because graceful restart mode is also enabled on this router, you can identify this router as being graceful-restart capable. A router that is graceful-restart-aware cannot be configured in graceful-restart mode.

Router status : Active

This router is in active, as opposed to standby, mode.

Router is running in SSO mode

The router is in stateful switchover mode.

OSPF restart state : NO_RESTART

The current OSPFv3 restart state.

Router ID 10.1.1.1, checkpoint Router ID 10.0.0.0

The IPv6 addresses of the current router and the checkpoint router.

Related Commands

Command

Description

show ipv6 ospf interface

Displays OSPFv3-related interface information.

show ipv6 ospf interface

To display Open Shortest Path First (OSPF)-related interface information, use the showipv6ospfinterface command in user EXEC or privileged mode.

show ipv6 ospf [process-id] [area-id] interface [ type number ] [brief]

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

area-id

(Optional) Displays information about a specified area only.

type number

(Optional) Interface type and number.

brief

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

Command Modes

User EXEC Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)S.

12.3(4)T

Command output is changed when authentication is enabled.

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.

12.4(9)T

Command output is changed when encryption is enabled.

12.2(33)SRB

The brief keyword was added.

12.4(15)XF

Output displays were modified so that VMI PPPoE interface-based local state values are displayed in the command output when a VMI interface is specified.

12.4(15)T

This command was integrated into Cisco IOS Release 12.4(15)T

12.2(33)SXH

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

Cisco IOS XE Release 2.1

Command output was updated to display graceful restart information.

12.2(33)SRE

This command was modified. It was integrated into Cisco IOS Release 12.2(33)SRE.

15.1(1)SY

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

Examples

Examples

The following is sample output from the showipv6ospfinterface command:

Router# show ipv6 ospf interface
ATM3/0 is up, line protocol is up 
  Link Local Address 2001:0DB1:205:5FFF:FED3:5808, Interface ID 13
  Area 1, Process ID 1, Instance ID 0, Router ID 172.16.3.3
  Network Type POINT_TO_POINT, Cost: 1
  Transmit Delay is 1 sec, State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:06
  Index 1/2/2, flood queue length 0
  Next 0x0(0)/0x0(0)/0x0(0)
  Last flood scan length is 12, maximum is 12
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1 
    Adjacent with neighbor 172.16.4.4
  Suppress hello for 0 neighbor(s)
FastEthernet0/0 is up, line protocol is up 
  Link Local Address 2001:0DB1:205:5FFF:FED3:5808, Interface ID 3
  Area 1, Process ID 1, Instance ID 0, Router ID 172.16.3.3
  Network Type BROADCAST, Cost: 1
  Transmit Delay is 1 sec, State BDR, Priority 1 
  Designated Router (ID) 172.16.6.6, local address 2001:0DB1:205:5FFF:FED3:6408
  Backup Designated router (ID) 172.16.3.3, local address 2001:0DB1:205:5FFF:FED3:5808
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:05
  Index 1/1/1, flood queue length 0
  Next 0x0(0)/0x0(0)/0x0(0)
  Last flood scan length is 12, maximum is 12
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1 
    Adjacent with neighbor 172.16.6.6  (Designated Router)
  Suppress hello for 0 neighbor(s)

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

Table 29 show ipv6 ospf interface Field Descriptions

Field

Description

ATM3/0

Status of the physical link and operational status of protocol.

Link Local Address

Interface IPv6 address.

Area 1, Process ID 1, Instance ID 0, Router ID 172.16.3.3

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

Network Type POINT_TO_POINT, Cost: 1

Network type and link-state cost.

Transmit Delay

Transmit delay, interface state, and router priority.

Designated Router

Designated router ID and respective interface IP address.

Backup Designated router

Backup designated router ID and respective interface IP address.

Timer intervals configured

Configuration of timer intervals.

Hello

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

Neighbor Count

Count of network neighbors and list of adjacent neighbors.

Examples

The following is sample output of the showipv6ospfinterface command when the brief keyword is entered.

Router# show ipv6 ospf interface brief
 
Interface    PID   Area            Intf ID    Cost  State Nbrs F/C
VL0          6     0               21         65535 DOWN  0/0
Se3/0        6     0               14         64    P2P   0/0
Lo1          6     0               20         1     LOOP  0/0
Se2/0        6     6               10         62    P2P   0/0
Tu0          1000  0               19         11111 DOWN  0/0

Examples

The following is sample output from the showipv6ospfinterface command with authentication enabled on the interface:

Router# show ipv6 ospf interface
Ethernet0/0 is up, line protocol is up
  Link Local Address 2001:0DB1:A8BB:CCFF:FE00:6E00, Interface ID 2
  Area 0, Process ID 1, Instance ID 0, Router ID 10.10.10.1
  Network Type BROADCAST, Cost:10
  MD5 Authentication SPI 500, secure socket state UP (errors:0)
  Transmit Delay is 1 sec, State BDR, Priority 1
  Designated Router (ID) 10.11.11.1, local address 2001:0DB1:A8BB:CCFF:FE00:6F00
  Backup Designated router (ID) 10.10.10.1, local address
2001:0DB1:A8BB:CCFF:FE00:6E00
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:01
  Index 1/1/1, flood queue length 0
  Next 0x0(0)/0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 1
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 10.11.11.1  (Designated Router)
  Suppress hello for 0 neighbor(s)

Examples

The following is sample output from the showipv6ospfinterface command with null authentication configured on the interface:

Router# show ipv6 ospf interface
Ethernet0/0 is up, line protocol is up
  Link Local Address 2001:0DB1:A8BB:CCFF:FE00:6E00, Interface ID 2
  Area 0, Process ID 1, Instance ID 0, Router ID 10.10.10.1
  Network Type BROADCAST, Cost:10
  Authentication NULL
  Transmit Delay is 1 sec, State BDR, Priority 1
  Designated Router (ID) 10.11.11.1, local address 2001:0DB1:A8BB:CCFF:FE00:6F00
  Backup Designated router (ID) 10.10.10.1, local address
2001:0DB1:A8BB:CCFF:FE00:6E00
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:03
  Index 1/1/1, flood queue length 0
  Next 0x0(0)/0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 1
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 10.11.11.1  (Designated Router)
  Suppress hello for 0 neighbor(s)

Examples

The following is sample output from the showipv6ospfinterface command with authentication configured for the area:

Router# show ipv6 ospf interface
Ethernet0/0 is up, line protocol is up
  Link Local Address 2001:0DB1:A8BB:CCFF:FE00:6E00, Interface ID 2
  Area 0, Process ID 1, Instance ID 0, Router ID 10.10.10.1
  Network Type BROADCAST, Cost:10
  MD5 Authentication (Area) SPI 1000, secure socket state UP (errors:0)
  Transmit Delay is 1 sec, State BDR, Priority 1
  Designated Router (ID) 10.11.11.1, local address 2001:0DB1:A8BB:CCFF:FE00:6F00
  Backup Designated router (ID) 10.10.10.1, local address
FE80::A8BB:CCFF:FE00:6E00
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:03
  Index 1/1/1, flood queue length 0
  Next 0x0(0)/0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 1
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 10.11.11.1  (Designated Router)
  Suppress hello for 0 neighbor(s)

Examples

The following display shows sample output from the showipv6ospfinterface command when the OSPF cost dynamic is configured.

Router1# show ipv6 ospf interface serial 2/0
Serial2/0 is up, line protocol is up
   Link Local Address 2001:0DB1:A8BB:CCFF:FE00:100, Interface ID 10
   Area 1, Process ID 1, Instance ID 0, Router ID 172.1.1.1
   Network Type POINT_TO_MULTIPOINT, Cost: 64 (dynamic), Cost Hysteresis: 200
   Cost Weights: Throughput 100, Resources 20, Latency 80, L2-factor 100
   Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT,
   Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
     Hello due in 00:00:19
   Index 1/2/3, flood queue length 0
   Next 0x0(0)/0x0(0)/0x0(0)
   Last flood scan length is 0, maximum is 0
   Last flood scan time is 0 msec, maximum is 0 msec
   Neighbor Count is 0, Adjacent neighbor count is 0
   Suppress hello for 0 neighbor(s)

Examples

The following display shows sample output from the showipv6ospfinterface command when the OSPF graceful restart feature is configured:

Router# show ipv6 ospf interface 
Ethernet0/0 is up, line protocol is up 
  Link Local Address FE80::A8BB:CCFF:FE00:300, Interface ID 2
  Area 0, Process ID 1, Instance ID 0, Router ID 10.3.3.3
  Network Type POINT_TO_POINT, Cost: 10
  Transmit Delay is 1 sec, State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
   Graceful Restart p2p timeout in 00:00:19
    Hello due in 00:00:02
  Graceful Restart helper support enabled
  Index 1/1/1, flood queue length 0
  Next 0x0(0)/0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 1
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1 
    Adjacent with neighbor 10.1.1.1
  Suppress hello for 0 neighbor(s)

Examples

The following display shows that the OSPF interface is enabled for Bidirectional Forwarding Detection (BFD):

Router# show ipv6 ospf interface 
Serial10/0 is up, line protocol is up 
  Link Local Address FE80::A8BB:CCFF:FE00:6500, Interface ID 42 
  Area 1, Process ID 1, Instance ID 0, Router ID 10.0.0.1 
  Network Type POINT_TO_POINT, Cost: 64 
  Transmit Delay is 1 sec, State POINT_TO_POINT, BFD enabled 
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 
    Hello due in 00:00:07 
  Index 1/1/1, flood queue length 0 
  Next 0x0(0)/0x0(0)/0x0(0) 
  Last flood scan length is 1, maximum is 1 
  Last flood scan time is 0 msec, maximum is 0 msec 
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 10.1.0.1
  Suppress hello for 0 neighbor(s)

Related Commands

Command

Description

show ipv6 ospf graceful-restart

Displays OSPFv3 graceful restart information.


 
	 

show ipv6 ospf neighbor

To display Open Shortest Path First (OSPF) neighbor information on a per-interface basis, use the show ipv6 ospf neighbor command in user EXEC or privileged EXEC mode.

show ipv6 ospf [process-id] [area-id] neighbor [ interface-type interface-number ] [neighbor-id] [detail]

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

area-id

(Optional) Displays information only about a specified area.

interface-type interface-number

(Optional) Interface type and number.

neighbor-id

(Optional) Neighbor ID.

detail

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

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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

Command output for the detail keyword was updated to display graceful-restart information.

15.1(1)SY

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

Examples

The following is sample output from the show ipv6 ospf neighbor command:

Router# show ipv6 ospf neighbor
 
Neighbor ID     Pri   State           Dead Time   Interface ID    Interface
172.16.4.4       1    FULL/  -        00:00:31    14              POS4/0
172.16.3.3       1    FULL/BDR        00:00:30    3               FastEthernet00
172.16.5.5       1    FULL/  -        00:00:33    13              ATM3/0

The following is sample output from the show ipv6 ospf neighbor command with the detail keyword:

Router# show ipv6 ospf neighbor detail
 Neighbor 172.16.4.4
    In the area 0 via interface POS4/0 
    Neighbor: interface-id 14, link-local address FE80::205:5FFF:FED3:5406
    Neighbor priority is 1, State is FULL, 6 state changes
    Options is 0x63AD1B0D
    Dead timer due in 00:00:33
    Neighbor is up for 00:48:56
    Index 1/1/1, retransmission queue length 0, number of retransmission 1
    First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0)
    Last retransmission scan length is 1, maximum is 1
    Last retransmission scan time is 0 msec, maximum is 0 msec
 Neighbor 172.16.3.3
    In the area 1 via interface FastEthernet0/0 
    Neighbor: interface-id 3, link-local address FE80::205:5FFF:FED3:5808
    Neighbor priority is 1, State is FULL, 6 state changes
    DR is 172.16.6.6 BDR is 172.16.3.3
    Options is 0x63F813E9
    Dead timer due in 00:00:33
    Neighbor is up for 00:09:00
    Index 1/1/2, retransmission queue length 0, number of retransmission 2
    First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0)
    Last retransmission scan length is 1, maximum is 2
    Last retransmission scan time is 0 msec, maximum is 0 msec
 Neighbor 172.16.5.5
    In the area 2 via interface ATM3/0 
    Neighbor: interface-id 13, link-local address FE80::205:5FFF:FED3:6006
    Neighbor priority is 1, State is FULL, 6 state changes
    Options is 0x63F7D249
    Dead timer due in 00:00:38
    Neighbor is up for 00:10:01
    Index 1/1/3, retransmission queue length 0, number of retransmission 0
    First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0)
    Last retransmission scan length is 0, maximum is 0
    Last retransmission scan time is 0 msec, maximum is 0 msec

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

Table 30 show ipv6 ospf neighbor Field Descriptions

Field

Description

Neighbor ID; Neighbor

Neighbor router ID.

In the area

Area and interface through which the OSPF neighbor is known.

Pri; Neighbor priority

Router priority of the neighbor, neighbor state.

State

OSPF state.

State changes

Number of state changes since the neighbor was created.

Options

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

Dead timer due in

Expected time before Cisco IOS software will declare the neighbor dead.

Neighbor is up for

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

Index

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

retransmission queue length

Number of elements in the retransmission queue.

number of retransmission

Number of times update packets have been re-sent during flooding.

First

Memory location of the flooding details.

Next

Memory location of the flooding details.

Last retransmission scan length

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

maximum

Maximum number of LSAs sent in any retransmission packet.

Last retransmission scan time

Time taken to build last retransmission packet.

maximum

Maximum time taken to build any retransmission packet.

The following is sample output from the show ipv6 ospf neighbor command with the detail keyword, displaying graceful-restart information:

Router# show ipv6 ospf neighbor detail
 Neighbor 10.1.1.1 
    In the area 0 via interface Ethernet0/0
    Neighbor: interface-id 3, link-local address FE80::A8BB:CCFF:FE00:200
    Neighbor priority is 1, State is FULL, 6 state changes
    DR is 10.1.1.1 BDR is 10.3.3.3 
    Options is 0x1C9AD11
    Neighbor graceful restart timer due in 00:01:44
    Last neighbor graceful restart 01:00:19 ago
    Dead timer due in 00:00:36
    Neighbor is up for 00:00:16
    Index 1/1/1, retransmission queue length 0, number of retransmission 0
    First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0)
    Last retransmission scan length is 0, maximum is 0
    Last retransmission scan time is 0 msec, maximum is 0 msec

show ipv6 ospf request-list

To display a list of all link-state advertisements (LSAs) requested by a router, use the s how ipv6 ospf request-listcommand in user EXEC or privileged EXEC mode.

show ipv6 ospf [process-id] [area-id] request-list [neighbor] [interface] [interface-neighbor]

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the Open Shortest Path First (OSPF) routing process is enabled.

area-id

(Optional) Displays information only about a specified area.

neighbor

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

interface

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

interface-neighbor

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

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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.

Usage Guidelines

The information displayed by the show ipv6 ospf request-list command is useful in debugging OSPF routing operations.

Examples

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

Router# show ipv6 ospf request-list
 
            OSPFv3 Router with ID (192.168.255.5) (Process ID 1)
 Neighbor 192.168.255.2, interface Ethernet0/0 address
FE80::A8BB:CCFF:FE00:6600
 Type    LS ID           ADV RTR         Seq NO      Age    Checksum
  1      0.0.0.0         192.168.255.3   0x800000C2  1      0x0014C5
  1      0.0.0.0         192.168.255.2   0x800000C8  0      0x000BCA
  1      0.0.0.0         192.168.255.1   0x800000C5  1      0x008CD1
  2      0.0.0.3         192.168.255.3   0x800000A9  774    0x0058C0
  2      0.0.0.2         192.168.255.3   0x800000B7  1      0x003A63

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

Table 31 show ipv6 ospf request-list Field Descriptions

Field

Description

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

Identification of the router for which information is displayed.

Interface Ethernet0/0

Interface for which information is displayed.

Type

Type of LSA.

LS ID

Link-state ID of the LSA.

ADV RTR

IP address of advertising router.

Seq NO

Sequence number of LSA.

Age

Age of LSA (in seconds).

Checksum

Checksum of LSA.

show ipv6 ospf retransmission-list

To display a list of all link-state advertisements (LSAs) waiting to be re-sent, use the s how ipv6 ospf retransmission-listcommand in user EXEC or privileged EXEC mode.

show ipv6 ospf [process-id] [area-id] retransmission-list [neighbor] [interface] [interface-neighbor]

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

area-id

(Optional) Displays information only about a specified area.

neighbor

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

interface

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

interface neighbor

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

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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.

Usage Guidelines

The information displayed by the show ipv6 ospf retransmission-list command is useful in debugging Open Shortest Path First (OSPF) routing operations.

Examples

The following is sample output from the show ipv6 ospf retransmission-list command:

Router# show ipv6 ospf retransmission-list
 
        OSPFv3 Router with ID (192.168.255.2) (Process ID 1)
 Neighbor 192.168.255.1, interface Ethernet0/0
 Link state retransmission due in 3759 msec, Queue length 1
 Type    LS ID           ADV RTR         Seq NO      Age    Checksum
 0x2001  0               192.168.255.2   0x80000222  1      0x00AE52

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

Table 32 show ipv6 ospf retransmission-list Field Descriptions

Field

Description

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

Identification of the router for which information is displayed.

Interface Ethernet0/0

Interface for which information is displayed.

Link state retransmission due in

Length of time before next link-state transmission.

Queue length

Number of elements in the retransmission queue.

Type

Type of LSA.

LS ID

Link-state ID of the LSA.

ADV RTR

IP address of advertising router.

Seq NO

Sequence number of the LSA.

Age

Age of LSA (in seconds).

Checksum

Checksum of LSA.

show ipv6 ospf statistics

To display Open Shortest Path First for IPv6 (OSPFv6) shortest path first (SPF) calculation statistics, use the show ipv6 ospf statistics command in user EXEC or privileged EXEC mode.

show ipv6 ospf statistics [detail]

Syntax Description

detail

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

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

12.2(33)SRC

This command was introduced.

Usage Guidelines

The show ipv6 ospf statistics command provides important information about SPF calculations and the events that trigger them. This information can be meaningful for both OSPF network maintenance and troubleshooting. For example, entering the show ipv6 ospf statistics command is recommended as the first troubleshooting step for link-state advertisement (LSA) flapping.

Examples

The following example provides detailed statistics for each OSPFv6 area:

Router# show ipv6 ospf statistics detail
  Area 0: SPF algorithm executed 3 times
SPF 1 executed 00:06:57 ago, SPF type Full
  SPF calculation time (in msec):
  SPT    Prefix D-Int  Sum    D-Sum  Ext    D-Ext  Total
  0      0      0      0      0      0      0      0
  RIB manipulation time (in msec):
  RIB Update    RIB Delete
  0             0             
  LSIDs processed R:1 N:0 Prefix:0 SN:0 SA:0 X7:0
  Change record R N SN SA L
  LSAs changed 1
  Changed LSAs. Recorded is Advertising Router, LSID and LS type:
  10.2.2.2/0(R)
SPF 2 executed 00:06:47 ago, SPF type Full
  SPF calculation time (in msec):
  SPT    Prefix D-Int  Sum    D-Sum  Ext    D-Ext  Total
  0      0      0      0      0      0      0      0
  RIB manipulation time (in msec):
  RIB Update    RIB Delete
  0             0             
  LSIDs processed R:1 N:0 Prefix:1 SN:0 SA:0 X7:0
  Change record R L P
  LSAs changed 4
  Changed LSAs. Recorded is Advertising Router, LSID and LS type:
  10.2.2.2/2(L) 10.2.2.2/0(R) 10.2.2.2/2(L) 10.2.2.2/0(P)

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

Table 33 show ipv6 ospf statistics Field Descriptions

Field

Description

Area

OSPF area ID.

SPF

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

Executed ago

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

SPF type

SPF type can be Full or Incremental.

SPT

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

Ext

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

Total

Total duration time in milliseconds for the SPF algorithm process.

LSIDs processed

Number of LSAs processed during the SPF calculation:

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

 
	 

show ipv6 ospf summary-prefix

To display a list of all summary address redistribution information configured under an OSPF process, use the s how ipv6 ospf summary-prefixcommand in user EXEC or privileged EXEC mode.

show ipv6 ospf [process-id] summary-prefix

Syntax Description

process-id

(Optional) Internal identification. It is locally assigned and can be any positive integer. The number used here is the number assigned administratively when the OSPF routing process is enabled.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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.

Usage Guidelines

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

Examples

The following is sample output from the show ipv6 ospf summary-prefix command:

Router# show ipv6 ospf summary-prefix
 
OSPFv3 Process 1, Summary-prefix
FEC0::/24 Metric 16777215, Type 0, Tag 0

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

Table 34 show ipv6 ospf summary-prefix Field Descriptions

Field

Description

OSPFv3 Process

Process ID of the router for which information is displayed.

Metric

Metric used to reach the destination router.

Type

Type of link-state advertisement (LSA).

Tag

LSA tag.

show ipv6 ospf timers rate-limit

To display all of the link-state advertisements (LSAs) in the rate limit queue, use the show ipv6 ospf timers rate-limitcommand in privileged EXEC mode.

show ipv6 ospf timers rate-limit

Syntax Description

This command has no arguments or keywords.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.2(33)SRC

This command was introduced.

12.2(33)SB

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

Usage Guidelines

Use the show ipv6 ospf timers rate-limit command to discover when LSAs in the queue will be sent.

Examples

Examples

The following is sample output from the show ipv6 ospf timers rate-limitcommand:

Router# show ipv6 ospf timers rate-limit
List of LSAs that are in rate limit Queue
    LSAID: 0.0.0.0 Type: 0x2001 Adv Rtr: 55.55.55.55 Due in: 00:00:00.500
    LSAID: 0.0.0.0 Type: 0x2009 Adv Rtr: 55.55.55.55 Due in: 00:00:00.500

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

Table 35 show ipv6 ospf timers rate-limit Field Descriptions

Field

Description

LSAID

ID of the LSA.

Type

Type of LSA.

Adv Rtr

ID of the advertising router.

Due in:

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

show ipv6 ospf traffic

To display IPv6 Open Shortest Path First Version 3 (OSPFv3) traffic statistics, use the showipv6ospftrafficcommand in privileged EXEC mode.

show ipv6 ospf [process-id] traffic [ interface-type interface-number ]

Syntax Description

process-id

(Optional) OSPF process ID for which you want traffic statistics (for example, queue statistics, statistics for each interface under the OSPF process, and per OSPF process statistics).

interface-type interface-number

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

Command Default

When the showipv6ospftraffic command is entered without any arguments, global OSPF traffic statistics are displayed, including queue statistics for each OSPF process, statistics for each interface, and per OSPF process statistics.

Command Modes

Privileged EXEC

Command History

Release

Modification

12.4(6)T

This command was introduced.

12.2(31)SB2

This command was integrated into Cisco IOS Release 12.2(31)SB2.

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.

Usage Guidelines

You can limit the displayed traffic statistics to those for a specific OSPF process by entering a value for the process-id argument, or you can limit output to traffic statistics for a specific interface associated with an OSPF process by entering values for the interface-type and interface-number arguments. To reset counters and clear statistics, use the clearipv6ospftraffic command.

Examples

The following example shows the display output for the showipv6ospftraffic command for OSPFv3:

Router# show ipv6 ospf traffic 
OSPFv3 statistics:
  Rcvd: 32 total, 0 checksum errors
        10 hello, 7 database desc, 2 link state req
        9 link state updates, 4 link state acks
        0 LSA ignored
  Sent: 45 total, 0 failed
        17 hello, 12 database desc, 2 link state req
        8 link state updates, 6 link state acks
        OSPFv3 Router with ID (10.1.1.4) (Process ID 6)
OSPFv3 queues statistic for process ID 6
  Hello queue size 0, no limit, max size 2
  Router queue size 0, limit 200, drops 0, max size 2
Interface statistics:
    Interface Serial2/0
OSPFv3 packets received/sent
  Type          Packets              Bytes
  RX Invalid    0                    0
  RX Hello      5                    196
  RX DB des     4                    172
  RX LS req     1                    52
  RX LS upd     4                    320
  RX LS ack     2                    112
  RX Total      16                   852
  TX Failed     0                    0
  TX Hello      8                    304
  TX DB des     3                    144
  TX LS req     1                    52
  TX LS upd     3                    252
  TX LS ack     3                    148
  TX Total      18                   900
OSPFv3 header errors
  Length 0, Checksum 0, Version 0, No Virtual Link 0, 
  Area Mismatch 0, Self Originated 0, Duplicate ID 0, 
  Instance ID 0, Hello 0, MTU Mismatch 0, 
  Nbr Ignored 0, Authentication 0, 
OSPFv3 LSA errors
  Type 0, Length 0, Data 0, Checksum 0, 
    Interface Ethernet0/0
OSPFv3 packets received/sent
  Type          Packets              Bytes
  RX Invalid    0                    0
  RX Hello      6                    240
  RX DB des     3                    144
  RX LS req     1                    52
  RX LS upd     5                    372
  RX LS ack     2                    152
  RX Total      17                   960
  TX Failed     0                    0
  TX Hello      11                   420
  TX DB des     9                    312
  TX LS req     1                    52
  TX LS upd     5                    376
  TX LS ack     3                    148
  TX Total      29                   1308
OSPFv3 header errors
  Length 0, Checksum 0, Version 0, No Virtual Link 0, 
  Area Mismatch 0, Self Originated 0, Duplicate ID 0, 
  Instance ID 0, Hello 0, MTU Mismatch 0, 
  Nbr Ignored 0, Authentication 0, 
OSPFv3 LSA errors
  Type 0, Length 0, Data 0, Checksum 0, 
Summary traffic statistics for process ID 6:
OSPFv3 packets received/sent
  Type          Packets              Bytes
  RX Invalid    0                    0
  RX Hello      11                   436
  RX DB des     7                    316
  RX LS req     2                    104
  RX LS upd     9                    692
  RX LS ack     4                    264
  RX Total      33                   1812
  TX Failed     0                    0
  TX Hello      19                   724
  TX DB des     12                   456
  TX LS req     2                    104
  TX LS upd     8                    628
  TX LS ack     6                    296
  TX Total      47                   2208
OSPFv3 header errors
  Length 0, Checksum 0, Version 0, No Virtual Link 0, 
  Area Mismatch 0, Self Originated 0, Duplicate ID 0, 
  Instance ID 0, Hello 0, MTU Mismatch 0, 
  Nbr Ignored 0, Authentication 0, 
OSPFv3 LSA errors
  Type 0, Length 0, Data 0, Checksum 0, 

The network administrator wants to start collecting new statistics, resetting the counters and clearing the traffic statistics by entering the clearipv6ospftraffic command as follows:

Router# clear ipv6 ospf traffic

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

Table 36 show ipv6 ospf traffic Field Descriptions

Field

Description

OSPFv3 statistics

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

OSPFv3 queues statistic for process ID

Queue statistics specific to Cisco IOS software.

Hello queue

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

Router queue

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

queue size

Actual size of the queue.

queue limit

Maximum allowed size of the queue.

queue max size

Maximum recorded size of the queue.

Interface statistics

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

OSPFv3 packets received/sent

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

OSPFv3 header errors

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

OSPFv3 LSA errors

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

Summary traffic statistics for process ID

Summary traffic statistics accumulated for an OSPFv3 process.

Note   

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

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

Related Commands

Command

Description

clear ip ospf traffic

Clears OSPFv2 traffic statistics.

clear ipv6 ospf traffic

Clears OSPFv3 traffic statistics.

show ip ospf traffic

Displays OSPFv2 traffic statistics.

show ipv6 ospf virtual-links

To display parameters and the current state of Open Shortest Path First (OSPF) virtual links, use the s how ipv6 ospf virtual-links command in user EXEC or privileged EXEC mode.

show ipv6 ospf virtual-links

Syntax Description

This command has no arguments or keywords.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)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.

12.4(9)T

Command output was updated to display OSPF for IPv6 encryption information.

12.2(33)SXH

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

Usage Guidelines

The information displayed by the show ipv6 ospf virtual-links command is useful in debugging OSPF routing operations.

Examples

The following is sample output from the show ipv6 ospf virtual-links command:

Router# show ipv6 ospf virtual-links 
Virtual Link OSPF_VL0 to router 172.16.6.6 is up
  Interface ID 27, IPv6 address FEC0:6666:6666::
  Run as demand circuit
  DoNotAge LSA allowed.
  Transit area 2, via interface ATM3/0, Cost of using 1
  Transmit Delay is 1 sec, State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:06

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

Table 37 show ipv6 ospf virtual-links Field Descriptions

Field

Description

Virtual Link OSPF_VL0 to router 172.16.6.6 is up

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

Interface ID

Interface ID and IPv6 address of the router.

Transit area 2

The transit area through which the virtual link is formed.

via interface ATM3/0

The interface through which the virtual link is formed.

Cost of using 1

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

Transmit Delay is 1 sec

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

State POINT_TO_POINT

The state of the OSPF neighbor.

Timer intervals...

The various timer intervals configured for the link.

Hello due in 0:00:06

When the next hello is expected from the neighbor.

The following sample output from the show ipv6 ospf virtual-links command has two virtual links. One is protected by authentication, and the other is protected by encryption.

Router# show ipv6 ospf virtual-links 
Virtual Link OSPFv3_VL1 to router 10.2.0.1 is up
   Interface ID 69, IPv6 address 2001:0DB8:11:0:A8BB:CCFF:FE00:6A00
   Run as demand circuit 
   DoNotAge LSA allowed. 
   Transit area 1, via interface Serial12/0, Cost of using 64 
   NULL encryption SHA-1 auth SPI 3944, secure socket UP (errors: 0) 
   Transmit Delay is 1 sec, State POINT_TO_POINT, 
   Timer intervals configured, Hello 2, Dead 10, Wait 40, Retransmit 5 
     Adjacency State FULL (Hello suppressed) 
     Index 1/2/4, retransmission queue length 0, number of retransmission 1 
     First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0) 
     Last retransmission scan length is 1, maximum is 1 
     Last retransmission scan time is 0 msec, maximum is 0 msec 
Virtual Link OSPFv3_VL0 to router 10.1.0.1 is up 
   Interface ID 67, IPv6 address 2001:0DB8:13:0:A8BB:CCFF:FE00:6700 
   Run as demand circuit 
   DoNotAge LSA allowed. 
   Transit area 1, via interface Serial11/0, Cost of using 128 
   MD5 authentication SPI 940, secure socket UP (errors: 0) 
   Transmit Delay is 1 sec, State POINT_TO_POINT, 
   Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 
     Adjacency State FULL (Hello suppressed) 
     Index 1/1/3, retransmission queue length 0, number of retransmission 1 
First 0x0(0)/0x0(0)/0x0(0) Next 0x0(0)/0x0(0)/0x0(0) 
     Last retransmission scan length is 1, maximum is 1 
     Last retransmission scan time is 0 msec, maximum is 0 msec 

show ipv6 pim anycast-RP

To verify IPv6 PIM anycast RP operation, use the show ipv6 pim anycast-RP command in user EXEC or privileged EXEC mode.

show ipv6 pim anycast-RP rp-address

Syntax Description

rp-address

RP address to be verified.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

15.1(3)S

This command was introduced.

Cisco IOS XE Release 3.4S

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

Cisco IOS Release 15.2(3)T

This command was integrated into Cisco IOS Release 15.2(3)T.

Cisco IOS Release 15.1(1)SY

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

Usage Guidelines

Examples

Router# show ipv6 pim anycast-rp 110::1:1:1 

Anycast RP Peers For 110::1:1:1   Last Register/Register-Stop received
  20::1:1:1 00:00:00/00:00:00

      

Related Commands

Command

Description

ipv6 pim anycast-RP

Configures the address of the PIM RP for an anycast group range.

show ipv6 pim bsr

To display information related to Protocol Independent Multicast (PIM) bootstrap router (BSR) protocol processing, use the show ipv6 pim bsr command in user EXEC or privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] bsr { election | rp-cache | candidate-rp }

Syntax Description

vrf vrf-name

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

election

Displays BSR state, BSR election, and bootstrap message (BSM)-related timers.

rp-cache

Displays candidate rendezvous point (C-RP) cache learned from unicast C-RP announcements on the elected BSR.

candidate-rp

Displays C-RP state on devices that are configured as C-RPs.

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.

12.0(28)S

The election, rp-cache, and candidate-rp keywords were added.

12.2(25)S

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

12.3(11)T

The election, rp-cache, and candidate-rp keywords were added.

12.2(28)SB

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

12.2(25)SG

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

12.2(33)SRA

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

12.2(33)SXH

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

Cisco IOS XE Release 2.1

This command was introduced on Cisco ASR 1000 Series Routers.

15.1(4)M

The vrf vrf-name keyword and argument were added.

Cisco IOS XE Release 3.7S

Command output when using the election keyword was modified.

Usage Guidelines

Use the show ipv6 pim bsr command to display details of the BSR election-state machine, C-RP advertisement state machine, and the C-RP cache. Information on the C-RP cache is displayed only on the elected BSR device, and information on the C-RP state machine is displayed only on a device configured as a C-RP.

Examples

The following example displays BSM election information:

device# show ipv6 pim bsr election
PIMv2 BSR information
BSR Election Information
Scope Range List: ff00::/8
This system is the Bootstrap Router (BSR)
BSR Address: 60::1:1:4
Uptime: 00:11:55, BSR Priority: 0, Hash mask length: 126
RPF: FE80::A8BB:CCFF:FE03:C400,Ethernet0/0
BS Timer: 00:00:07
This system is candidate BSR
Candidate BSR address: 60::1:1:4, priority: 0, hash mask length: 126

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

Table 38 show ipv6 pim bsr election Field Descriptions

Field

Description

Scope Range List

Scope to which this BSR information applies.

This system is the Bootstrap Router (BSR)

Indicates this device is the BSR and provides information on the parameters associated with it.

BS Timer

On the elected BSR, the BS timer shows the time in which the next BSM will be originated.

On all other devices in the domain, the BS timer shows the time at which the elected BSR expires.

This system is candidate BSR

Indicates this device is the candidate BSR and provides information on the parameters associated with it.

The following example displays information that has been learned from various C-RPs at the BSR. In this example, two candidate RPs have sent advertisements for the FF00::/8 or the default IPv6 multicast range:

Device# show ipv6 pim bsr rp-cache
PIMv2 BSR C-RP Cache
BSR Candidate RP Cache
Group(s) FF00::/8, RP count 2
  RP 10::1:1:3
    Priority 192, Holdtime 150
    Uptime: 00:12:36, expires: 00:01:55
  RP 20::1:1:1
    Priority 192, Holdtime 150
    Uptime: 00:12:36, expires: 00:01:5

The following example displays information about the C-RP. This RP has been configured without a specific scope value, so the RP will send C-RP advertisements to all BSRs about which it has learned through BSMs it has received.

Device# show ipv6 pim bsr candidate-rp
PIMv2 C-RP information
    Candidate RP: 10::1:1:3
      All Learnt Scoped Zones, Priority 192, Holdtime 150
      Advertisement interval 60 seconds
      Next advertisement in 00:00:33

The following example confirms that the IPv6 C-BSR is PIM-enabled. If PIM is disabled on an IPv6 C-BSR interface, or if a C-BSR or C-RP is configured with the address of an interface that does not have PIM enabled, the show ipv6 pim bsr command used with the election keyword would display that information instead.

Device# show ipv6 pim bsr election

PIMv2 BSR information

BSR Election Information
  Scope Range List: ff00::/8
     BSR Address: 2001:DB8:1:1:2
     Uptime: 00:02:42, BSR Priority: 34, Hash mask length: 28
     RPF: FE80::20:1:2,Ethernet1/0
     BS Timer: 00:01:27

show ipv6 pim df

To display the designated forwarder (DF)-election state of each interface for each rendezvous point (RP), use the show ipv6 pim dfcommand in user EXEC or privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] df [ interface-type interface-number ] [rp-address]

Syntax Description

vrf vrf-name

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

interface-type interface-number

(Optional) Interface type and number. For more information, use the question mark (?) online help function.

rp-address

(Optional) RP IPv6 address.

Command Default

If no interface or RP address is specified, all DFs are displayed.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.3(7)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

This command was introduced on Cisco ASR 1000 Series Routers.

15.1(4)M

The vrf vrf-name keyword and argument were added.

Usage Guidelines

Use the show ipv6 pim df command to display the state of the DF election for each RP on each Protocol Independent Multicast (PIM)-enabled interface if the bidirectional multicast traffic is not flowing as expected.

Examples

The following example displays the DF-election states:

Router# show ipv6 pim df
Interface          DF State     Timer         Metrics
Ethernet0/0        Winner       4s 8ms        [120/2]
    RP :200::1
Ethernet1/0        Lose         0s 0ms        [inf/inf]
    RP :200::1

The following example shows information on the RP:

Router# show ipv6 pim df
Interface          DF State     Timer         Metrics
Ethernet0/0        None:RP LAN 0s 0ms        [inf/inf]
    RP :200::1
Ethernet1/0        Winner       7s 600ms      [0/0]
    RP :200::1
Ethernet2/0        Winner       9s 8ms        [0/0]
    RP :200::1

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

Table 39 show ipv6 pim df Field Descriptions

Field

Description

Interface

Interface type and number that is configured to run PIM.

DF State

The state of the DF election on the interface. The state can be:

  • Offer
  • Winner
  • Backoff
  • Lose
  • None:RP LAN

The None:RP LAN state indicates that no DF election is taking place on this LAN because the RP is directly connected to this LAN.

Timer

DF election timer.

Metrics

Routing metrics to the RP announced by the DF.

RP

The IPv6 address of the RP.

Related Commands

Command

Description

debug ipv6 pim df-election

Displays debug messages for PIM bidirectional DF-election message processing.

ipv6 pim rp-address

Configures the address of a PIM RP for a particular group range.

show ipv6 pim df winner

Displays the DF-election winner on each interface for each RP.

show ipv6 pim df winner

To display the designated forwarder (DF)-election winner on each interface for each rendezvous point (RP), use the show ipv6 pim df winnercommand in user EXEC or privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] df winner [ interface-type interface-number ] [rp-address]

Syntax Description

vrf vrf-name

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

interface-type interface-number

(Optional) Interface type and number. For more information, use the question mark (?) online help function.

rp-address

(Optional) RP IPv6 address.

Command Default

If no interface or RP address is specified, all DFs are displayed.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.3(7)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

This command was introduced on Cisco ASR 1000 Series Routers.

15.1(4)M

The vrf vrf-name keyword and argument were added.

Usage Guidelines

Use the show ipv6 pim df winner command to display the DF election winner for each RP on each Protocol Independent Multicast ( PIM)-enabled interface if the bidirectional multicast traffic is not flowing as expected.

Examples

The following example shows the DF winner for the IPv6 address 200::1:

Router# show ipv6 pim df winner ethernet 1/0 200::1
Interface          Metrics
Ethernet1/0        [120/2]
RP        : 200::1
DF Winner : FE80::A8BB:CCFF:FE00:601

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

Table 40 show ipv6 pim df winner Field Descriptions

Field

Description

Interface

Interface type and number that is configured to run PIM.

Metrics

Routing metrics to the RP announced by the DF.

RP

The IPv6 address of the RP.

DF Winner

The IPv6 address of the DF election winner.

Related Commands

Command

Description

debug ipv6 pim df-election

Displays debug messages for PIM bidirectional DF-election message processing.

ipv6 pim rp-address

Configures the address of a PIM RP for a particular group range.

show ipv6 pim df

Displays the DF -election state of each interface for each RP.

show ipv6 pim group-map

To display an IPv6 Protocol Independent Multicast (PIM) group mapping table, use the show ipv6 pim group-map command in user EXEC or privileged EXEC mode.

{ show ipv6 pim [ vrf vrf-name ] group-map [ group-name | group-address ] | [ group-range | group-mask ] [ info-source { bsr | default | embedded-rp | static } ] }

Syntax Description

vrf vrf-name

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

group-name | group-address

(Optional) IPv6 address or name of the multicast group.

group-range | group-mask

(Optional) Group range list. Includes group ranges with the same prefix or mask length.

info-source

(Optional) Displays all mappings learned from a specific source, such as the bootstrap router (BSR) or static configuration.

bsr

Displays ranges learned through the BSR.

default

Displays ranges enabled by default.

embedded-rp

Displays group ranges learned through the embedded rendezvous point (RP).

static

Displays ranges enabled by static configuration.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.3(2)T

This command was introduced.

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(28)S

The group-range and group-maskarguments were added, and the info-source bsr, static, and default keywords were added.

12.2(25)S

The group-range and group-maskarguments were added, and the info-source bsr, static, and default keywords were added.

12.3(11)T

The group-range and group-maskarguments were added, and the info-source bsr, static, and default keywords were added.

12.2(28)SB

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

12.2(25)SG

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

12.2(33)SRA

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

12.2(33)SXH

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

15.1(4)M

The vrf vrf-name keyword and argument were added.

15.0(2)SE

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

15.4(1)S

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

Usage Guidelines

Use the show ipv6 pim group-map command to find all group mappings installed by a given source of information, such as BSR or static configuration.

You can also use this command to find which group mapping a router at a specified IPv6 group address is using by specifying a group address, or to find an exact group mapping entry by specifying a group range and mask length.

Examples

The following is sample output from the show ipv6 pim group-mapcommand:

Router# show ipv6 pim group-map
FF33::/32*
      SSM
      Info source:Static
      Uptime:00:08:32, Groups:0
  FF34::/32*
      SSM
      Info source:Static
      Uptime:00:09:42, Groups:0

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

Table 41 show ipv6 pim group-map Field Descriptions

Field

Description

RP

Address of the RP router if the protocol is sparse mode or bidir.

Protocol

Protocol used: sparse mode (SM), Source Specific Multicast (SSM), link-local (LL), or NOROUTE (NO).

LL is used for the link-local scoped IPv6 address range (ff[0-f]2::/16). LL is treated as a separate protocol type, because packets received with these destination addresses are not forwarded, but the router might need to receive and process them.

NOROUTE or NO is used for the reserved and node-local scoped IPv6 address range (ff[0-f][0-1]::/16). These addresses are nonroutable, and the router does not need to process them.

Groups

How many groups are present in the topology table from this range.

Info source

Mappings learned from a specific source; in this case, static configuration.

Uptime

The uptime for the group mapping displayed.

The following example displays the group mappings learned from BSRs that exist in the PIM group-to-RP or mode-mapping cache. The example shows the address of the BSR from which the group mappings have been learned and the associated timeout.

Router# show ipv6 pim group-map info-source bsr
FF00::/8*
    SM, RP: 20::1:1:1
    RPF: Et1/0,FE80::A8BB:CCFF:FE03:C202
    Info source: BSR From: 60::1:1:4(00:01:42), Priority: 192
    Uptime: 00:19:51, Groups: 0
FF00::/8*
    SM, RP: 10::1:1:3
    RPF: Et0/0,FE80::A8BB:CCFF:FE03:C102
    Info source: BSR From: 60::1:1:4(00:01:42), Priority: 192
    Uptime: 00:19:51, Groups: 0

show ipv6 pim interface

To display information about interfaces configured for Protocol Independent Multicast (PIM), use the show ipv6 pim interface command in privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] interface [state-on] [state-off] [ type number ]

Syntax Description

vrf vrf-name

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

state-on

(Optional) Displays interfaces with PIM enabled.

state-off

(Optional) Displays interfaces with PIM disabled.

type number

(Optional) Interface type and number.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.3(2)T

This command was introduced.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)S.

12.0(26)S

The state-on and state-offkeywords were added.

12.3(4)T

The state-on and state-offkeywords were added.

12.2(28)SB

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

12.2(25)SG

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

12.2(33)SRA

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

12.2(33)SXH

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

Cisco IOS XE Release 2.6

Command output was modified to display passive interface information.

15.1(4)M

The vrf vrf-name keyword and argument were added.

15.0(2)SE

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

15.3(2)S

This command was modified. The output has been modified to include information about interfaces configured for BFD support for multicast (PIM).

Cisco IOS XE Release 3.9S

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

15.4(1)S

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

Usage Guidelines

The show ipv6 pim interface command is used to check if PIM is enabled on an interface, the number of neighbors, and the designated router (DR) on the interface.

Examples

The following is sample output from the show ipv6 pim interface command using the state-on keyword:

Router# show ipv6 pim interface state-on
Interface          PIM  Nbr   Hello  DR
                        Count Intvl  Prior
Ethernet0          on   0     30     1     
    Address:FE80::208:20FF:FE08:D7FF
    DR     :this system
POS1/0             on   0     30     1     
    Address:FE80::208:20FF:FE08:D554
    DR     :this system
POS4/0             on   1     30   1     
    Address:FE80::208:20FF:FE08:D554
    DR     :FE80::250:E2FF:FE8B:4C80
POS4/1             on   0     30   1     
    Address:FE80::208:20FF:FE08:D554
    DR     :this system
Loopback0          on   0     30     1     
    Address:FE80::208:20FF:FE08:D554
    DR     :this system

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

Table 42 show ipv6 pim interface Field Descriptions

Field

Description

Interface

Interface type and number that is configured to run PIM.

PIM

Whether PIM is enabled on an interface.

Nbr Count

Number of PIM neighbors that have been discovered through this interface.

Hello Intvl

Frequency, in seconds, of PIM hello messages.

DR

IP address of the designated router (DR) on a network.

Address

Interface IP address of the next-hop router.

The following is sample output from the show ipv6 pim interface command, modified to display passive interface information:

Router(config)# show ipv6 pim interface gigabitethernet0/0/0

    Interface              PIM   Nbr   Hello  DR		BFD
                           Count Intvl Prior

    GigabitEthernet0/0/0   on/P  0     30     1			On     
       Address: FE80::A8BB:CCFF:FE00:9100
       DR     : this system

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

Table 43 show ipv6 pim interface Field Description

Field

Description

PIM

Whether PIM is enabled on an interface. When PIM passive mode is used, a "P" is displayed in the output.

BFD

Whether BFD is enabled on an interface. When BFD support for multicast (PIM) is enabled on an interface, an "on" is displayed in the output.

Related Commands

Command

Description

show ipv6 pim neighbor

Displays the PIM neighbors discovered by the Cisco IOS software.

show ipv6 pim join-prune statistic

To display the average join-prune aggregation for the most recently aggregated 1000, 10,000, and 50,000 packets for each interface, use the show ipv6 pim join-prune statistic command in user EXEC or privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] join-prune statistic [interface-type]

Syntax Description

vrf vrf-name

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

interface-type

(Optional) Interface type. For more information, use the question mark (?) online help function.

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(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.

Cisco IOS XE Release 2.1

This command was introduced on Cisco ASR 1000 Series Routers.

15.1(4)M

The vrf vrf-name keyword and argument were added.

15.4(1)S

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

Usage Guidelines

When Protocol Independent Multicast (PIM) sends multiple joins and prunes simultaneously, it aggregates them into a single packet. The show ipv6 pim join-prune statistic command displays the average number of joins and prunes that were aggregated into a single packet over the last 1000 PIM join-prune packets, over the last 10,000 PIM join-prune packets, and over the last 50,000 PIM join-prune packets.

Examples

The following example provides the join/prune aggregation on Ethernet interface 0/0/0:

Router# show ipv6 pim join-prune statistic Ethernet0/0/0
PIM Average Join/Prune Aggregation for last (1K/10K/50K) packets
Interface             Transmitted             Received
Ethernet0/0/0      0    / 0    / 0         1    / 0    / 0

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

Table 44 show ipv6 pim join-prune statistics Field Descriptions

Field

Description

Interface

The interface from which the specified packets were transmitted or on which they were received.

Transmitted

The number of packets transmitted on the interface.

Received

The number of packets received on the interface.

show ipv6 pim limit

To display Protocol Independent Multicast (PIM) interface limit, use the show ipv6 pim limit command in privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] limit [interface]

Syntax Description

vrf vrf-name

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

interface

(Optional) Specific interface for which limit information is provided.

Command Modes


Privileged EXEC (#)

Command History

Release

Modification

12.2(33)SRE

This command was introduced.

15.1(4)M

The vrf vrf-name keyword and argument were added.

Usage Guidelines

The show ipv6 pim limit command checks interface statistics for limits. If the optional interface argument is enabled, only information for the specified interface is shown.

Examples

The following example displays s PIM interface limit information:

Router# show ipv6 pim limit

Related Commands

Command

Description

ipv6 multicast limit

Configures per-interface mroute state limiters in IPv6.

ipv6 multicast limit cost

Applies a cost to mroutes that match per interface mroute state limiters in IPv6.

show ipv6 pim neighbor

To display the Protocol Independent Multicast (PIM) neighbors discovered by the Cisco software, use the show ipv6 pim neighbor command in privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] neighbor [ detail] [ interface-type interface-number | count]

Syntax Description

vrf vrf-name

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

detail

(Optional) Displays the additional addresses of the neighbors learned, if any, through the routable address hello option.

interface-type interface-number

(Optional) Interface type and number.

count

(Optional) Displays neighbor counts on each interface.

Command Modes

Privileged EXEC

Command History

Release

Modification

12.3(2)T

This command was introduced.

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(25)SG

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

12.2(33)SRA

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

12.2(33)SXH

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

15.1(4)M

The vrfvrf-name keyword and argument were added.

15.0(2)SE

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

15.4(1)S

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

Usage Guidelines

The show ipv6 pim neighbor command displays which routers on the LAN are configured for PIM.

Examples

The following is sample output from the show ipv6 pim neighbor command using the detail keyword to identify the additional addresses of the neighbors learned through the routable address hello option:

Router# show ipv6 pim neighbor detail 

Neighbor Address(es)       Interface          Uptime    Expires DR pri Bidir

FE80::A8BB:CCFF:FE00:401   Ethernet0/0        01:34:16  00:01:16 1      B
60::1:1:3

FE80::A8BB:CCFF:FE00:501   Ethernet0/0        01:34:15  00:01:18 1      B
60::1:1:4

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

Table 45 show ipv6 pim neighbor Field Descriptions

Field

Description

Neighbor addresses

IPv6 address of the PIM neighbor.

Interface

Interface type and number on which the neighbor is reachable.

Uptime

How long (in hours, minutes, and seconds) the entry has been in the PIM neighbor table.

Expires

How long (in hours, minutes, and seconds) until the entry will be removed from the IPv6 multicast routing table.

DR

Indicates that this neighbor is a designated router (DR) on the LAN.

pri

DR priority used by this neighbor.

Bidir

The neighbor is capable of PIM in bidirectional mode.

Related Commands

Command

Description

show ipv6 pim interfaces

Displays information about interfaces configured for PIM.

show ipv6 pim range-list

To display information about IPv6 multicast range lists, use the show ipv6 pim range-listcommand in privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] range-list [config] [ rp-address | rp-name ]

Syntax Description

vrf vrf-name

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

config

(Optional) The client. Displays the range lists configured on the router.

rp-address | rp-name

(Optional) The address of a Protocol Independent Multicast (PIM) rendezvous point (RP).

Command Modes


Privileged EXEC

Command History

Release

Modification

12.3(2)T

This command was introduced.

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(25)SG

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

12.2(33)SRA

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

12.2(33)SXH

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

15.1(4)M

The vrf vrf-name keyword and argument were added.

15.0(2)SE

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

15.4(1)S

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

Usage Guidelines

The show ipv6 pim range-list command displays IPv6 multicast range lists on a per-client and per-mode basis. A client is the entity from which the specified range list was learned. The clients can be config, and the modes can be Source Specific Multicast (SSM) or sparse mode (SM).

Examples

The following is sample output from the show ipv6 pim range-listcommand:

Router# show ipv6 pim range-list
config SSM Exp:never Learnt from :::
 FF33::/32 Up:00:26:33
 FF34::/32 Up:00:26:33
 FF35::/32 Up:00:26:33
 FF36::/32 Up:00:26:33
 FF37::/32 Up:00:26:33
 FF38::/32 Up:00:26:33
 FF39::/32 Up:00:26:33
 FF3A::/32 Up:00:26:33
 FF3B::/32 Up:00:26:33
 FF3C::/32 Up:00:26:33
 FF3D::/32 Up:00:26:33
 FF3E::/32 Up:00:26:33
 FF3F::/32 Up:00:26:33
config SM RP:40::1:1:1 Exp:never Learnt from :::
 FF13::/64 Up:00:03:50
config SM RP:40::1:1:3 Exp:never Learnt from :::
 FF09::/64 Up:00:03:50

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

Table 46 show ipv6 pim range-list Field Descriptions

Field

Description

config

Config is the client.

SSM

Protocol being used.

FF33::/32

Group range.

Up:

Uptime.

show ipv6 pim topology

To display Protocol Independent Multicast (PIM) topology table information for a specific group or all groups, use the show ipv6 pim topology command in user EXEC or privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] topology [ groupname-or-address [sourcename-or-address] | link-local | route-count [detail] ]

Syntax Description

vrf vrf-name

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

groupname-or-address

(Optional) IPv6 address or name of the multicast group.

sourcename-or-address

(Optional) IPv6 address or name of the source.

link-local

(Optional) Displays the link-local groups.

route-count

(Optional) Displays the number of routes in PIM topology table.

Command Modes


User EXEC (>)
Privileged EXEC (#)

Command History

Release

Modification

12.3(2)T

This command was introduced.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)S.

12.0(26)S

This command was modified. The link-local keyword was added.

12.3(4)T

This command was modified. The link-local keyword was added.

12.2(28)SB

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

12.2(25)SG

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

12.2(33)SRA

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

12.2(33)SXH

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

Cisco IOS XE Release 2.1

This command was introduced on Cisco ASR 1000 Series Routers.

15.1(4)M

The vrf vrf-name keyword and argument were added.

15.0(2)SE

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

15.4(1)S

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

Usage Guidelines

This command shows the PIM topology table for a given group--(*, G), (S, G), and (S, G) Rendezvous Point Tree (RPT)-- as internally stored in a PIM topology table. The PIM topology table may have various entries for a given group, each with its own interface list. The resulting forwarding state is maintained in the Multicast Routing Information Base (MRIB) table, which shows which interface the data packet should be accepted on and which interfaces the data packet should be forwarded to for a given (S, G) entry. Additionally, the Multicast Forwarding Information Base (MFIB) table is used during forwarding to decide on per-packet forwarding actions.

The route-countkeyword shows the count of all entries, including link-local entries.

PIM communicates the contents of these entries through the MRIB, which is an intermediary for communication between multicast routing protocols (such as PIM), local membership protocols (such as Multicast Listener Discovery [MLD]), and the multicast forwarding engine of the system.

For example, an interface is added to the (*, G) entry in PIM topology table upon receipt of an MLD report or PIM (*, G) join message. Similarly, an interface is added to the (S, G) entry upon receipt of the MLD INCLUDE report for the S and G or PIM (S, G) join message. Then PIM installs an (S, G) entry in the MRIB with the immediate olist (from (S, G)) and the inherited olist (from (*, G)). Therefore, the proper forwarding state for a given entry (S, G) can be seen only in the MRIB or the MFIB, not in the PIM topology table.

Examples

The following is sample output from the show ipv6 pim topology command:

Router# show ipv6 pim topology
IP PIM Multicast Topology Table
Entry state:(*/S,G)[RPT/SPT] Protocol Uptime Info
Entry flags:KAT - Keep Alive Timer, AA - Assume Alive, PA - Probe Alive,
    RA - Really Alive, LH - Last Hop, DSS - Don't Signal Sources,
    RR - Register Received, SR - Sending Registers, E - MSDP External,
    DCC - Don't Check Connected
Interface state:Name, Uptime, Fwd, Info
Interface flags:LI - Local Interest, LD - Local Dissinterest,
II - Internal Interest, ID - Internal Dissinterest,
LH - Last Hop, AS - Assert, AB - Admin Boundary
(*,FF05::1)
SM UP:02:26:56 JP:Join(now) Flags:LH 
RP:40::1:1:2
RPF:Ethernet1/1,FE81::1 
  Ethernet0/1          02:26:56  fwd LI LH 
(50::1:1:200,FF05::1)
SM UP:00:00:07 JP:Null(never) Flags:
RPF:Ethernet1/1,FE80::30:1:4 
  Ethernet1/1          00:00:07  off LI 

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

Table 47 show ipv6 pim topology Field Descriptions

Field

Description

Entry flags: KAT

The keepalive timer (KAT) associated with a source is used to keep track of two intervals while the source is alive. When a source first becomes active, the first-hop router sets the keepalive timer to 3 minutes and 30 seconds, during which time it does not probe to see if the source is alive. Once this timer expires, the router enters the probe interval and resets the timer to 65 seconds, during which time the router assumes the source is alive and starts probing to determine if it actually is. If the router determines that the source is alive, the router exits the probe interval and resets the keepalive timer to 3 minutes and 30 seconds. If the source is not alive, the entry is deleted at the end of the probe interval.

AA, PA

The assume alive (AA) and probe alive (PA) flags are set when the router is in the probe interval for a particular source.

RR

The register received (RR) flag is set on the (S, G) entries on the Route Processor (RP) as long as the RP receives registers from the source Designated Router (DR), which keeps the source state alive on the RP.

SR

The sending registers (SR) flag is set on the (S, G) entries on the DR as long as it sends registers to the RP.

Related Commands

Command

Description

show ipv6 mrib client

Displays information about the clients of the MRIB.

show ipv6 mrib route

Displays MRIB route information.

show ipv6 pim traffic

To display the Protocol Independent Multicast (PIM) traffic counters, use the show ipv6 pim traffic command in user EXEC or privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] traffic

Syntax Description

vrf vrf-name

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

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(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.

Cisco IOS XE Release 2.1

This command was introduced on Cisco ASR 1000 Series Routers.

15.1(4)M

The vrf vrf-name keyword and argument were added.

15.4(1)S

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

Usage Guidelines

Use the show ipv6 pim traffic command to check if the expected number of PIM protocol messages have been received and sent.

Examples

The following example shows the number of PIM protocol messages received and sent.

Router# show ipv6 pim traffic
 
PIM Traffic Counters
Elapsed time since counters cleared:00:05:29
                              Received     Sent
Valid PIM Packets               22          22        
Hello                           22          22        
Join-Prune                      0           0         
Register                        0           0         
Register Stop                   0           0         
Assert                          0           0         
Bidir DF Election               0           0         
Errors:
Malformed Packets                           0         
Bad Checksums                               0         
Send Errors                                 0         
Packet Sent on Loopback Errors              0         
Packets Received on PIM-disabled Interface  0         
Packets Received with Unknown PIM Version   0 

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

Table 48 show ipv6 pim traffic Field Descriptions

Field

Description

Elapsed time since counters cleared

Indicates the amount of time (in hours, minutes, and seconds) since the counters cleared.

Valid PIM Packets

Number of valid PIM packets received and sent.

Hello

Number of valid hello messages received and sent.

Join-Prune

Number of join and prune announcements received and sent.

Register

Number of PIM register messages received and sent.

Register Stop

Number of PIM register stop messages received and sent.

Assert

Number of asserts received and sent.

show ipv6 pim tunnel

To display information about the Protocol Independent Multicast (PIM) register encapsulation and de-encapsulation tunnels on an interface, use the show ipv6 pim tunnelcommand in privileged EXEC mode.

show ipv6 pim [ vrf vrf-name ] tunnel [ interface-type interface-number ]

Syntax Description

vrf vrf-name

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

interface-type interface-number

(Optional) Tunnel interface type and number.

Command Modes


Privileged EXEC

Command History

Release

Modification

12.3(2)T

This command was introduced.

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(25)SG

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

12.2(33)SRA

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

12.2(33)SXH

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

15.1(4)M

The vrf vrf-name keyword and argument were added.

15.0(2)SE

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

15.4(1)S

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

Usage Guidelines

If you use the show ipv6 pim tunnel command without the optional interface keyword, information about the PIM register encapsulation and de-encapsulation tunnel interfaces is displayed.

The PIM encapsulation tunnel is the register tunnel. An encapsulation tunnel is created for every known rendezvous point (RP) on each router. The PIM decapsulation tunnel is the register decapsulation tunnel. A decapsulation tunnel is created on the RP for the address that is configured to be the RP address.

Examples

The following is sample output from the show ipv6 pim tunnelcommand on the RP:

Router# show ipv6 pim tunnel 
Tunnel0*
 Type  :PIM Encap
 RP    :100::1
 Source:100::1
Tunnel0*
 Type  :PIM Decap
 RP    :100::1
 Source: -

The following is sample output from the show ipv6 pim tunnelcommand on a non-RP:

Router# show ipv6 pim tunnel
Tunnel0*
 Type  :PIM Encap
 RP    :100::1
 Source:2001::1:1:1

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

Table 49 show ipv6 pim tunnel Field Descriptions

Field

Description

Tunnel0*

Name of the tunnel.

Type

Type of tunnel. Can be PIM encapsulation or PIM de-encapsulation.

source

Source address of the router that is sending encapsulating registers to the RP.

show ipv6 policy

To display the IPv6 policy-based routing (PBR) configuration, use the show ipv6 policy command in user EXEC or privileged EXEC mode.

show ipv6 policy

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC

Privileged EXEC

Command History

Release

Modification

12.3(7)T

This command was introduced.

12.2(33)SXI4

This command was integrated into Cisco IOS Release 12.2(33)SXI4.

Cisco IOS XE Release 3.2S

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

15.1(1)SY

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

Usage Guidelines

IPv6 policy matches will be counted on route maps, as is done in IPv4. Therefore, IPv6 policy matches can also be displayed on the show route-map command.

Examples

The following example displays the PBR configuration:

Device# show ipv6 policy

Interface                 Routemap
Ethernet0/0               src-1

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

Field

Description

Interface

Interface type and number that is configured to run Protocol-Independent Multicast (PIM).

Routemap

The name of the route map on which IPv6 policy matches were counted.

Related Commands

Command

Description

show route-map

Displays all route maps configured or only the one specified.

show ipv6 port-map

To verify port-to-application mapping (PAM) configuration, use the show ipv6 port-mapcommand in user EXEC or privileged EXEC mode.

show ipv6 port-map [ application | port port-number ]

Syntax Description

application

(Optional) Specifies the name of the application used in port mapping.

port port-number

(Optional) Specifies the port number that maps to the application.

Command Modes


User EXEC
Privileged EXEC

Command History

Release

Modification

12.3(11)T

This command was introduced.

Usage Guidelines

The show ipv6 port-map command displays the entire IPv6 port-mapping table or specific port-mapping information of a particular port number or application (protocol). Enabling the show ipv6 port-map command displays the entire IPv6 PAM table, including system-defined, user-defined, and host-specific port-mapping configurations.

To display port-mapping details of a specific port number, use the show ipv6 port-map command with the portport-number keyword and argument.

To display the port-mapping details of a specific application, use the show ipv6 port-map command with the application argument.

Examples

The following example displays the FTP application’s PAM information:

Router# show ipv6 port-map ftp

The following example displays PAM information at port number 21:

Router# show ipv6 port-map port 21

Related Commands

Command

Description

ipv6 port-map

Establishes PAM for the system.

show ipv6 prefix-list

To display information about an IPv6 prefix list or IPv6 prefix list entries, use the show ipv6 prefix-listcommand in user EXEC or privileged EXEC mode.

show ipv6 prefix-list [ detail | summary ] [list-name]

show ipv6 prefix-list list-name ipv6-prefix/prefix-length [ longer | first-match ]

show ipv6 prefix-list list-name seq seq-num

Syntax Description

detail | summary

(Optional) Displays detailed or summarized information about all IPv6 prefix lists.

list-name

(Optional) The name of a specific IPv6 prefix list.

ipv6-prefix

All prefix list entries for the specified 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

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

longer

(Optional) Displays all entries of an IPv6 prefix list that are more specific than the given ipv6-prefix / prefix-lengthvalues.

first-match

(Optional) Displays the entry of an IPv6 prefix list that matches the given ipv6-prefix / prefix-lengthvalues.

seq seq-num

The sequence number of the IPv6 prefix list entry.

Command Default

Displays information about all IPv6 prefix lists.

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

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

Examples

The following example shows the output of the show ipv6 prefix-list command with the detail keyword:

Router# show ipv6 prefix-list detail
Prefix-list with the last deletion/insertion: bgp-in
ipv6 prefix-list 6to4:
   count: 1, range entries: 0, sequences: 5 - 5, refcount: 2
   seq 5 permit 2002::/16 (hit count: 313, refcount: 1)
ipv6 prefix-list aggregate:
   count: 2, range entries: 2, sequences: 5 - 10, refcount: 30
   seq 5 deny 3FFE:C00::/24 ge 25 (hit count: 568, refcount: 1)
   seq 10 permit ::/0 le 48 (hit count: 31310, refcount: 1)
ipv6 prefix-list bgp-in:
   count: 6, range entries: 3, sequences: 5 - 30, refcount: 31
   seq 5 deny 5F00::/8 le 128 (hit count: 0, refcount: 1)
   seq 10 deny ::/0 (hit count: 0, refcount: 1)
   seq 15 deny ::/1 (hit count: 0, refcount: 1)
   seq 20 deny ::/2 (hit count: 0, refcount: 1)
   seq 25 deny ::/3 ge 4 (hit count: 0, refcount: 1)
   seq 30 permit ::/0 le 128 (hit count: 240664, refcount: 0) 

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

Table 50 show ipv6 prefix-list Field Descriptions

Field

Description

Prefix list with the latest deletion/insertion:

Prefix list that was last modified.

count

Number of entries in the list.

range entries

Number of entries with matching range.

sequences

Sequence number for the prefix entry.

refcount

Number of objects currently using this prefix list.

seq

Entry number in the list.

permit, deny

Granting status.

hit count

Number of matches for the prefix entry.

The following example shows the output of the show ipv6 prefix-list command with the summarykeyword:

Router# show ipv6 prefix-list summary
Prefix-list with the last deletion/insertion: bgp-in
ipv6 prefix-list 6to4:
   count: 1, range entries: 0, sequences: 5 - 5, refcount: 2
ipv6 prefix-list aggregate:
   count: 2, range entries: 2, sequences: 5 - 10, refcount: 30
ipv6 prefix-list bgp-in:
   count: 6, range entries: 3, sequences: 5 - 30, refcount: 31 

Related Commands

Command

Description

clear ipv6 prefix-list

Resets the hit count of the prefix list entries.

distribute-list in

Filters networks received in updates.

distribute-list out

Suppresses networks from being advertised in updates.

ipv6 prefix-list

Creates an entry in an IPv6 prefix list.

ipv6 prefix-list description

Adds a text description of an IPv6 prefix list.

match ipv6 address

Distributes IPv6 routes that have a prefix permitted by a prefix list.

neighbor prefix-list

Distributes BGP neighbor information as specified in a prefix list.

remark (prefix-list)

Adds a comment for an entry in a prefix list.

show ipv6 protocols

To display the parameters and the current state of the active IPv6 routing protocol processes, use the show ipv6 protocols command in user EXEC or privileged EXEC mode.

show ipv6 protocols [summary]

Syntax Description

summary

(Optional) Displays the configured routing protocol process names.

Command Modes

User EXEC (>)

Privileged EXEC (#)

Command History

Release

Modification

12.2(8)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.

12.4(15)T

This command was modified. The command output was enhanced to provide Enhanced Interior Gateway Routing Protocol (EIGRP) information, including the vector metric.

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 implemented on Cisco ASR 1000 Series Aggregation Services Routers.

Cisco IOS XE Release 3.6

This command was modified. The command output was enhanced to include information about EIGRP IPv6 Nonstop Forwarding (NSF).

15.2(2)S

This command was modified. The command output was enhanced to include information about EIGRP IPv6 NSF.

Cisco IOS XE Release 3.2SE

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

15.2(2)SNI

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

15.2(1)E

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

Usage Guidelines

The information displayed by the show ipv6 protocols command is useful in debugging routing operations.

Examples

The following sample output from the show ipv6 protocols command displays Intermediate System-to-Intermediate System (IS-IS) routing protocol information:

Device# show ipv6 protocols

IPv6 Routing Protocol is "connected"
IPv6 Routing Protocol is "static"
IPv6 Routing Protocol is "isis"
  Interfaces:
    Ethernet0/0/3
    Ethernet0/0/1
    Serial1/0/1
    Loopback1 (Passive)
    Loopback2 (Passive)
    Loopback3 (Passive)
    Loopback4 (Passive)
    Loopback5 (Passive)
  Redistribution:
    Redistributing protocol static at level 1
  Inter-area redistribution
    Redistributing L1 into L2 using prefix-list word
  Address Summarization:
    L2: 33::/16  advertised with metric 0
    L2: 44::/16  advertised with metric 20
    L2: 66::/16  advertised with metric 10
    L2: 77::/16  advertised with metric 10

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

Table 51 show ipv6 protocols Field Descriptions for IS-IS Processes

Field

Description

IPv6 Routing Protocol is

Specifies the IPv6 routing protocol used.

Interfaces

Specifies the interfaces on which the IPv6 IS-IS protocol is configured.

Redistribution

Lists the protocol that is being redistributed.

Inter-area redistribution

Lists the IS-IS levels that are being redistributed into other levels.

using prefix-list

Names the prefix list used in the interarea redistribution.

Address Summarization

Lists all the summary prefixes. If the summary prefix is being advertised, "advertised with metric x" will be displayed after the prefix.

The following sample output from the show ipv6 protocols command displays the Border Gateway Protocol (BGP) information for autonomous system 30:

Device# show ipv6 protocols

IPv6 Routing Protocol is "bgp 30"
  IGP synchronization is disabled
  Redistribution:
    Redistributing protocol connected
  Neighbor(s):
    Address                    FiltIn FiltOut Weight RoutemapIn RoutemapOut
    2001:DB8:0:ABCD::1            5       7    200           
    2001:DB8:0:ABCD::2                               rmap-in    rmap-out
    2001:DB8:0:ABCD::3                               rmap-in    rmap-out

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

Table 52 show ipv6 protocols Field Descriptions for BGP Process

Field

Description

IPv6 Routing Protocol is

Specifies the IPv6 routing protocol used.

Redistribution

Lists the protocol that is being redistributed.

Address

Neighbor IPv6 address.

FiltIn

AS-path filter list applied to input.

FiltOut

AS-path filter list applied to output.

Weight

Neighbor weight value used in BGP best path selection.

RoutemapIn

Neighbor route map applied to input.

RoutemapOut

Neighbor route map applied to output.

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

Device# show ipv6 protocols summary

Index Process Name
0     connected
1     static
2     rip myrip
3     bgp 30

The following sample output from the show ipv6 protocols command displays the EIGRP information including the vector metric and EIGRP IPv6 NSF:

Device# show ipv6 protocols

IPv6 Routing Protocol is "connected"
IPv6 Routing Protocol is "bgp 1"
  IGP synchronization is disabled
  Redistribution:
    None
IPv6 Routing Protocol is "bgp multicast"
IPv6 Routing Protocol is "ND"
IPv6 Routing Protocol is "eigrp 1"
EIGRP-IPv6 VR(name) Address-Family Protocol for AS(1)
  Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 K6=0
  Metric rib-scale 128
  Metric version 64bit
  NSF-aware route hold timer is 260
  EIGRP NSF enabled
     NSF signal timer is 15s
     NSF converge timer is 65s
  Router-ID: 10.1.2.2
  Topology : 0 (base) 
    Active Timer: 3 min
    Distance: internal 90 external 170
    Maximum path: 16
    Maximum hopcount 100
    Maximum metric variance 1
    Total Prefix Count: 0
    Total Redist Count: 0

  Interfaces:
  Redistribution:
    None

The following example displays IPv6 protocol information after configuring redistribution in an Open Shortest Path First (OSPF) domain:

Device# redistribute ospf 1 match internal
Device(config-rtr)# end
Device# show ipv6 protocols

IPv6 Routing Protocol is "connected"
IPv6 Routing Protocol is "ND"
IPv6 Routing Protocol is "rip 1"
  Interfaces:
    Ethernet0/1
    Loopback9
  Redistribution:
    Redistributing protocol ospf 1 (internal)
IPv6 Routing Protocol is "ospf 1"
  Interfaces (Area 0):
    Ethernet0/0
  Redistribution:
    None