Show, Clear, and Debug Command Reference

Command Hierarchies

  1. Show Commands
  2. Clear Commands
  3. Debug Commands

Show Commands

show
— router
— isis [isis-instance]
— adjacency [ip-address | ip-int-name | nbr-system-id] [detail]
— capabilities [system-id | lsp-id ] [level level]
— database [system-id | lsp-id ] [detail] [level level]
— hostname
— interface [ip-int-name | ip-address] [detail]
— lfa-coverage
— link-group-member-status name [level level]
— link-group-status name [level level]
— mapping-server [prefix ip-address[/mask]] [index index] [level level] [flags {s}]
— prefix-sids [ipv4-unicast|ipv6-unicast|ipv4-multicast | ipv6-multicast | mt mt-id-number] [ip-prefix[/prefix-length]] [sid sid] [adv-router system-id | hostname]
— routes [ipv4-unicast | ipv6-unicast | ipv4-multicast | ipv6-multicast | mt mt-id-number] [ip-prefix[/prefix-length]] [alternative] [exclude-shortcut]
— spf-log [detail]
— statistics
— status
— summary-address [ip-address [/mask] ]
— topology [ipv4-unicast | ipv6-unicast | ipv4-multicast | ipv6-multicast | mt mt-id-number] [lfa] [detail]

Clear Commands

clear
— router
— isis [isis-instance]
— adjacency [system-id]
— database [system-id]
— export
— overload {rtm | fib | prefix-limit}
— spf-log
— statistics

Debug Commands

debug
— router
— isis [isis-instance]
— [no] adjacency [ip-int-name | ip-address | nbr-system-id]
— [no] cspf
— [no] graceful-restart
— interface [ip-int-name | ip-address]
— no interface
— leak [ip-address]
— no leak
— [no] lsdb [level-number] [system-id | lsp-id]
— [no] misc
— packet [packet-type] [ip-int-name | ip-address] [detail]
— rtm [ip-address]
— no rtm
— [no] spf [level-number] [system-id]

Command Descriptions

Show Commands

The command outputs in the following section are examples only; actual displays may differ depending on supported functionality and user configuration.

isis

Syntax 
isis [isis-instance]
Context 
show>router
Description 

This command displays information for a specified IS-IS instance.

Parameters 
isis-instance—
Specifies the instance ID for an IS-IS instance.
Values—
1 to 31
Values—
0

adjacency

Syntax 
adjacency [ip-address | ip-int-name | nbr-system-id] [detail]
Context 
show>router>isis
Description 

This command displays information regarding IS-IS neighbors. When no ip-address, ip-int-name, or nbr-system-id is specified, then all adjacencies are displayed.

Parameters 
ip-address—
When specified, only adjacencies with that interface is displayed.
Values—
ipv4-address:
  1. a.b.c.d (host bits must be 0)
ipv6-address:
  1. x:x:x:x:x:x:x:x (eight 16-bit pieces)
  2. x:x:x:x:x:x:d.d.d.d
  3. x: [0 to FFFF]H
  4. d: [0 to 255]D
ip-int-name—
When specified, only adjacencies with that interface is displayed.
nbr-system-id—
When specified, only the adjacency with that ID is displayed.
detail—
All output is displayed in the detailed format.
Output 

Standard and Detailed IS-IS Adjacency Output

The following table describes the standard and detailed command output fields for an IS-IS adjacency.

Table 33:  Standard and Detailed Adjacency Output Fields   

Label

Description

Interface

Interface name associated with the neighbor.

System-id

Neighbor’s system ID.

Level

1-L1 only, 2-L2 only, 3-L1 and L2.

State

Up, down, new, one-way, initializing, or rejected.

Hold

Hold time remaining for the adjacency.

SNPA

Subnetwork point of attachment, MAC address of the next hop.

Circuit type

Level on the interface L1, L2, or both.

Expires In

Number of seconds until adjacency expires.

Priority

Priority to become designated router.

Up/down transitions

Number of times neighbor state has changed.

Event

Event causing last transition.

Last transition

Time since last transition change.

Speaks

Supported protocols (only IP).

IP address

IP address of neighbor.

MT enab

Yes

The neighbor is advertising at least 1 non MTID#0.

Topology

Derived from the MT TLV in the IIH

  1. MT#0, MT#2 => “Topology : Unicast, IPv6-Unicast”
  2. Native IPv4 or native IPv6 => “Topology : Unicast”

Not supported MTIDs => Topology line suppressed

Sample Output
*A:Dut-C# show router isis adjacency
===============================================================================
Rtr Base ISIS Instance 0 Adjacency
===============================================================================
System ID Usage State Hold Interface MT-ID
-------------------------------------------------------------------------------
Dut-B L1L2 Up 23 to_Dut-B 0
Dut-D L1L2 Up 23 to_Dut-D1 0
-------------------------------------------------------------------------------
Adjacencies : 2
===============================================================================
*A:Dut-C# show router isis adjacency Dut-D detail
===============================================================================
Rtr Base ISIS Instance 0 Adjacency (detail)
===============================================================================
SystemID : Dut-D SNPA : 00:00:00:00:00:04
Interface : to_Dut-D1 Up Time : 0d 00:05:23
State : Up Priority : 0
Nbr Sys Typ : L1L2 L. Circ Typ : L1L2
Hold Time : 19 Max Hold : 27
Adj Level : L1L2 MT Enabled : No
Topology : Unicast
IPv6 Neighbor : fe80::200:ff:fe00:4
IPv4 Neighbor : 1.3.4.4
IPv4 Adj SID : Label 262139
Restart Support : Disabled
Restart Status : Not currently being helped
Restart Supressed : Disabled
Number of Restarts: 0
Last Restart at : Never
===============================================================================
*A:Dut-C#
*A:ALA-A# show router isis adjacency 180.0.7.12
===============================================================================
Rtr Base ISIS Instance 0 Adjacency
===============================================================================
System ID Usage State Hold Interface
-------------------------------------------------------------------------------
asbr_east L2 Up 25 if2/5
-------------------------------------------------------------------------------
Adjacencies : 1
===============================================================================
*A:ALA-A#
*A:ALA-A# show router isis adjacency if2/5
===============================================================================
Rtr Base ISIS Instance 0 Adjacency
===============================================================================
System ID Usage State Hold Interface
-------------------------------------------------------------------------------
asbr_east L2 Up 20 if2/5
-------------------------------------------------------------------------------
Adjacencies : 1
===============================================================================
*A:ALA-A#
*A:Dut-A# show router isis adjacency detail
===============================================================================
Rtr Base ISIS Instance 0 Adjacency (detail)
===============================================================================
SystemID : Dut-B SNPA : 20:81:01:01:00:01
Interface : ip-3FFE::A0A:101 Up Time : 0d 00:56:10
State : Up Priority : 64
Nbr Sys Typ : L1 L. Circ Typ : L1
Hold Time : 2 Max Hold : 2
Adj Level : L1 MT Enabled : Yes
Topology : Unicast, IPv6-Unicast
IPv6 Neighbor : FE80::2281:1FF:FE01:1
IPv4 Neighbor : 10.10.1.2
Restart Support : Disabled
Restart Status : Not currently being helped
Restart Supressed : Disabled
Number of Restarts: 0
Last Restart at : Never
SystemID : Dut-B SNPA : 20:81:01:01:00:01
Interface : ip-3FFE::A0A:101 Up Time : 0d 00:56:10
State : Up Priority : 64
Nbr Sys Typ : L2 L. Circ Typ : L2
Hold Time : 2 Max Hold : 2
Adj Level : L2 MT Enabled : Yes
Topology : Unicast, IPv6-Unicast
IPv6 Neighbor : FE80::2281:1FF:FE01:1
IPv4 Neighbor : 10.10.1.2
Restart Support : Disabled
Restart Status : Not currently being helped
Restart Supressed : Disabled
Number of Restarts: 0
Last Restart at : Never
SystemID : Dut-F SNPA : 00:00:00:00:00:00
Interface : ies-1-3FFE::A0A:1501 Up Time : 0d 01:18:34
State : Up Priority : 0
Nbr Sys Typ : L1L2 L. Circ Typ : L1L2
Hold Time : 5 Max Hold : 6
Adj Level : L1L2 MT Enabled : Yes
Topology : Unicast, IPv6-Unicast
IPv6 Neighbor : FE80::2285:FFFF:FE00:0
IPv4 Neighbor : 10.10.21.6
Restart Support : Disabled
Restart Status : Not currently being helped
Restart Supressed : Disabled
Number of Restarts: 0
Last Restart at : Never
===============================================================================
*A:Dut-A#
A:Dut-A# show router isis status
===============================================================================
Rtr Base ISIS Instance 0 Status
===============================================================================
System Id : 0100.2000.1001
Admin State : Up
Ipv4 Routing : Enabled
Ipv6 Routing : Disabled
Last Enabled : 08/28/2006 10:22:17
Level Capability : L2
Authentication Check : True
Authentication Type : None
CSNP-Authentication : Enabled
HELLO-Authentication : Enabled
PSNP-Authentication : Enabled
Traffic Engineering : Enabled
Graceful Restart : Disabled
GR Helper Mode : Disabled
LSP Lifetime : 1200
LSP Wait : 1 sec (Max) 1 sec (Initial) 1 sec (Second)
Adjacency Check : loose
L1 Auth Type : none
L2 Auth Type : none
L1 CSNP-Authenticati*: Enabled
L1 HELLO-Authenticat*: Enabled
L1 PSNP-Authenticati*: Enabled
L1 Preference : 15
L2 Preference : 18
L1 Ext. Preference : 160
L2 Ext. Preference : 165
L1 Wide Metrics : Disabled
L2 Wide Metrics : Enabled
L1 LSDB Overload : Disabled
L2 LSDB Overload : Disabled
L1 LSPs : 0
L2 LSPs : 15
Last SPF : 08/28/2006 10:22:25
SPF Wait : 1 sec (Max) 10 ms (Initial) 10 ms (Second)
Export Policies : None
Area Addresses : 49.0001
===============================================================================
* indicates that the corresponding row element may have been truncated.
A:Dut-A#

capabilities

Syntax 
capabilities [system-id | lsp-id] [level level]
Context 
show>router>isis
Description 

This command displays the IS-IS capability information.

Output 

Sample Output
*A:Dut-C# show router isis capabilities
===============================================================================
Rtr Base ISIS Instance 0 Capabilities
===============================================================================
Displaying Level 1 capabilities
-------------------------------------------------------------------------------
LSP ID : Dut-B.00-00
Router Cap : 10.20.1.2, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
LSP ID : Dut-C.00-00
Router Cap : 10.20.1.3, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
LSP ID : Dut-D.00-00
Router Cap : 10.20.1.4, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
LSP ID : Dut-E.00-00
Router Cap : 10.20.1.5, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
Level (1) Capability Count : 4
Displaying Level 2 capabilities
-------------------------------------------------------------------------------
LSP ID : Dut-B.00-00
Router Cap : 10.20.1.2, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
LSP ID : Dut-B.00-01
LSP ID : Dut-C.00-00
Router Cap : 10.20.1.3, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
LSP ID : Dut-C.00-01
LSP ID : Dut-D.00-00
Router Cap : 10.20.1.4, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
LSP ID : Dut-D.00-01
LSP ID : Dut-E.00-00
Router Cap : 10.20.1.5, D:0, S:0
TE Node Cap : B E M P
SR Cap: IPv4 , SRGB Base:20000, Range:10001
SR Alg: metric based SPF
LSP ID : Dut-E.00-01
Level (2) Capability Count : 8
===============================================================================
*A:Dut-C#

database

Syntax 
database [system-id | lsp-id] [detail] [level level]
Context 
show>router>isis
Description 

This command displays the entries in the IS-IS link state database.

Parameters 
system-id—
Only the LSPs related to the specified system-id are listed. If no system-id or lsp-id are specified, all database entries are listed.
lsp-id—
Only the specified LSP (hostname) is listed. If no system-id or lsp-id are specified, all database entries are listed.
level level—
Specifies the interface level (1, 2, or 1 and 2).
detail—
All output is displayed in the detailed format.
Output 

Sample Output
*A:ALA-A# show router isis database
===============================================================================
Rtr Base ISIS Instance 0 Database
===============================================================================
LSP ID Sequence Checksum Lifetime Attributes
-------------------------------------------------------------------------------
Displaying Level 1 database
-------------------------------------------------------------------------------
abr_dfw.00-00 0x50 0x164f 603 L1L2
Level (1) LSP Count : 1
Displaying Level 2 database
-------------------------------------------------------------------------------
asbr_east.00-00 0x53 0xe3f5 753 L1L2
abr_dfw.00-00 0x57 0x94ff 978 L1L2
abr_dfw.03-00 0x50 0x14f1 614 L1L2
Level (2) LSP Count : 3
===============================================================================
*A:ALA-A#
*A:Dut-B# show router isis database Dut-A.00-00 detail
==============================================================================
Rtr Base ISIS Instance 0 Database (detail)
==============================================================================
Displaying Level 1 database
------------------------------------------------------------------------------
Level (1) LSP Count : 0
Displaying Level 2 database
------------------------------------------------------------------------------
LSP ID : Dut-A.00-00 Level : L2
Sequence : 0x6 Checksum : 0xb7c4 Lifetime : 1153
Version : 1 Pkt Type : 20 Pkt Ver : 1
Attributes: L1L2 Max Area : 3
SysID Len : 6 Used Len : 311 Alloc Len : 311
TLVs :
Area Addresses:
Area Address : (2) 30.31
Supp Protocols:
Protocols : IPv4
IS-Hostname : Dut-A
Router ID :
Router ID : 10.20.1.1
I/F Addresses :
I/F Address : 10.20.1.1
I/F Address : 10.10.1.1
I/F Address : 10.10.2.1
TE IS Nbrs :
Nbr : Dut-B.01
Default Metric : 1000
Sub TLV Len : 98
IF Addr : 10.10.1.1
MaxLink BW: 100000 kbps
Resvble BW: 100000 kbps
Unresvd BW:
BW[0] : 10000 kbps
BW[1] : 40000 kbps
BW[2] : 40000 kbps
BW[3] : 40000 kbps
BW[4] : 50000 kbps
BW[5] : 50000 kbps
BW[6] : 50000 kbps
BW[7] : 10000 kbps
Admin Grp : 0x0
TE Metric : 1000
SUBTLV BW CONSTS : 8
BW Model : 1
BC[0]: 10000 kbps
BC[1]: 0 kbps
BC[2]: 40000 kbps
BC[3]: 0 kbps
BC[4]: 0 kbps
BC[5]: 50000 kbps
BC[6]: 0 kbps
BC[7]: 0 kbps
TE IP Reach :
Default Metric : 0
Control Info: , prefLen 32
Prefix : 10.20.1.1
Default Metric : 1000
Control Info: , prefLen 24
Prefix : 10.10.1.0
Default Metric : 1000
Control Info: , prefLen 24
Prefix : 10.10.2.0
Level (2) LSP Count : 1
==============================================================================
*A:Dut-B#

hostname

Syntax 
hostname
Context 
show>router>isis
Description 

This command displays the hostname database. There are no options or parameters.

Output 

IS-IS Hostname Output

The following table describes output fields for IS-IS hostname output.

Table 34:  IS-IS Hostname Output Fields   

Label

Description

System-id

System identifier mapped to hostname.

Hostname

Hostname for the specific system-id.

Type

The type of entry (static or dynamic).

Sample Output
A:ALA-A# show router isis hostname
=========================================================================
Rtr Base ISIS Instance 0 Hostnames
=========================================================================
System Id Hostname
-------------------------------------------------------------------------
1800.0000.0002 core_west
1800.0000.0005 core_east
1800.0000.0008 asbr_west
1800.0000.0009 asbr_east
1800.0000.0010 abr_sjc
1800.0000.0011 abr_lax
1800.0000.0012 abr_nyc
1800.0000.0013 abr_dfw
1800.0000.0015 dist_oak
1800.0000.0018 dist_nj
1800.0000.0020 acc_nj
1800.0000.0021 acc_ri
1800.0000.0027 dist_arl
1800.0000.0028 dist_msq
1800.0000.0029 acc_arl
1800.0000.0030 acc_msq
=========================================================================
A:ALA-A#

interface

Syntax 
interface [ip-int-name | ip-address] [detail]
Context 
show>router>isis
Description 

This command shows IS-IS interface information. When no ip-addr or the ip-int-name is specified, all interfaces are listed.

Parameters 
ip-address—
Only displays the interface information associated with the specified IP address.
Values—
ipv4-address
  1. a.b.c.d (host bits must be 0)
ipv6-address
  1. x:x:x:x:x:x:x:x (eight 16-bit pieces)
  2. x:x:x:x:x:x:d.d.d.d
  3. x: [0 to FFFF]H
  4. d: [0 to 255]D
ip-int-name—
Only displays the interface information associated with the specified IP interface name.
detail—
All output is displayed in the detailed format.
Output 

IS-IS Interface Output

The following table describes IS-IS interface output fields.

Table 35:  IS-IS Interface Output Fields   

Label

Description

Interface

The interface name.

Level

Specifies the interface level (1, 2, or 1 and 2).

CirID

Specifies the circuit identifier.

Oper State

Up

The interface is operationally up.

Down

The interface is operationally down.

L1/L2 Metric

Interface metric for Level 1 and Level 2, if none are set to 0.

Sample Output
A:ALA-A# show router isis interface
===============================================================================
Rtr Base ISIS Instance 0 Interfaces
===============================================================================
Interface Level CircID Oper State L1/L2 Metric
-------------------------------------------------------------------------------
system L1L2 1 Up 10/10
if2/1 L2 8 Up -/10
if2/2 L1 5 Up 10/-
if2/3 L1 6 Up 10/-
if2/4 L1 7 Up 10/-
if2/5 L2 2 Up -/10
lag-1 L2 3 Up -/10
if2/8 L2 4 Up -/10
-------------------------------------------------------------------------------
Interfaces : 8
===============================================================================
A:ALA-A#
*A:Dut-C# show router isis interface "system" detail
===============================================================================
Rtr Base ISIS Instance 0 Interfaces
===============================================================================
-------------------------------------------------------------------------------
Interface : system Level Capability: L1L2
Oper State : Up Admin State : Up
Auth Keychain : Disabled
Auth Type : None Auth State : Enabled
Circuit Id : 1 Retransmit Int. : 5
Type : Pt-to-Pt LSP Pacing Int. : 100
Oper Type : Pt-to-Pt CSNP Int. : 10
Mesh Group : Inactive BER : none
LFA NH Template : None Bfd Enabled : No
Topology : IPv4-Unicast, IPv6-Unicast, IPv4-Multicast, IPv6-Multicast
Te Metric : 0 Te State : Down
Admin Groups : None
Ldp Sync : outOfService Ldp Sync Wait : Disabled
Ldp Timer State : Disabled Ldp Tm Left : 0
Route Tag : None LFA : Included
Default Instance: N/A LFA :
IPv4 Node SID : Index 1003 IPv6 Node SID : none
Level : 1 Adjacencies : 0
Auth Keychain : Disabled
Auth Type : None Metric : 0
Hello Timer : 3 IPv6-Ucast-Met : 0
Priority : 64 IPv6-Mcast-Met : 0
Passive : No IPv4-Mcast-Met : 0
SD-Offset : 0 SF-Offset : 0
Hello Mult. : 2
Level : 2 Adjacencies : 0
Auth Keychain : Disabled
Auth Type : None Metric : 0
Hello Timer : 3 IPv6-Ucast-Met : 0
Priority : 64 IPv6-Mcast-Met : 0
Passive : No IPv4-Mcast-Met : 0
SD-Offset : 0 SF-Offset : 0
Hello Mult. : 2
===============================================================================

lfa-coverage

Syntax 
lfa-coverage
Context 
show>router>isis
Description 

This command displays IS-IS LFA coverage information.

Output 

Sample Output
*A:SR# show router isis lfa-coverage
============================================================================
Rtr Base ISIS Instance 0 LFA Coverage
============================================================================
Topology Level Node IPv4
----------------------------------------------------------------------------
IPV4 Unicast L1 4/4(100%) 826/826(100%)
IPV4 Unicast L2 2/2(100%) 826/826(100%)
IPV6 Unicast L1 3/3(100%) 0/0(0%)
IPV6 Unicast L2 0/0(0%) 0/0(0%)
============================================================================
*A:SR#
*A:SRR>config>router>isis# show router isis lfa-coverage
===============================================================================
LFA Coverage
===============================================================================
Topology Level Node IPv4 IPv6
-------------------------------------------------------------------------------
IPV4 Unicast L1 3/4(75%) 1484/1975(75%) 0/0(0%)
IPV4 Unicast L2 3/3(100%) 1484/1975(75%) 0/0(0%)
===============================================================================
*A:SRR>config>router>isis#

link-group-member-status

Syntax 
link-group-member-status name [level level]
Context 
show>router>isis
Description 

This command displays IS-IS link-group-member status.

Parameters 
name—
Up to 32 characters.
level level—
Specifies the interface level (1, 2, or 1 and 2).
Output 

Sample Output
A:cses-V94# show router isis link-group-member-status
- link-group-member-status <name> [level <level>]
<name> : [32 chars max]
<level> : 1|2
A:cses-V94# show router isis link-group-member-status "toDutB"
===============================================================================
Rtr Base ISIS Instance 0 Link-Group Member
===============================================================================
Link-group I/F name Level State
-------------------------------------------------------------------------------
toDutB ip-10.10.12.3 L1 Up
toDutB ip-10.10.3.3 L1 Up
toDutB ip-10.10.12.3 L2 Up
toDutB ip-10.10.3.3 L2 Up
-------------------------------------------------------------------------------
Legend: BER = bitErrorRate
===============================================================================
A:cses-V94#

link-group-status

Syntax 
link-group-status name [level level]
Context 
show>router>isis
Description 

This command displays IS-IS link-group status.

Parameters 
name—
Specifies the link-group name.
level level—
Specifies the interface level (1, 2, or 1 and 2).
Output 

Sample Output
A:cses-V94# show router isis link-group-status
===============================================================================
Rtr Base ISIS Instance 0 Link-Group Status
===============================================================================
Link-group Mbrs Oper Revert Active Level State
Mbr Mbr Mbr
-------------------------------------------------------------------------------
toDutB 2 2 2 2 L1 normal
toDutB 2 2 2 2 L2 normal
toDutE 2 2 2 2 L1 normal
toDutE 2 2 2 2 L2 normal
===============================================================================
A:cses-V94#

mapping-server

Syntax 
mapping-server [prefix ip-address[/mask]] [index index] [level level] [flag {s}]
Context 
show>router>isis
Description 

This command displays IS-IS mapping-server information.

Parameters 
prefix ip-address[/mask]—
Specifies the IP address and mask of a prefix that has received a node-sid in a SID/Label binding TLV.
Values—
ip-address: a.b.c.d. (host bits must be 0)
mask: 0 to 32
index index—
Specifies the node-sid index value for the generated SID/Label binding TLV.
Values—
0 to 4294967295
Values—
none
level level—
Specifies a match on the mapping server’s own flooding scope for the generated SID/Label binding TLV.
Values—
1, 2, 1/2
flag—
Specifies a match on the flooding scope of the generated SID/Label binding TLV.
Values—
s — Specifies to match on the S flag value of 1. A SID/Label Binding TLV with the S flag set is flooded across the entire IS-IS routing domain, except across another IS-IS instance. If the S flag is not set (value of zero), the SID/Label Binding TLV is not leaked between levels.
Output 

Sample Output
*A:Dut-C# show router isis  mapping-server    
===============================================================================
Rtr Base ISIS Instance 0 Mapping Server
===============================================================================
Index      Prefix             Range Flags Level
-------------------------------------------------------------------------------
1000       10.20.1.4/32       1     -     L1L2
1001       10.20.1.5/32       1     -     L1L2
1002       10.20.1.6/32       1     -     L1L2
-------------------------------------------------------------------------------
No. of Mapping Server Sid-Maps : 3
===============================================================================

prefix-sids

Syntax 
prefix-sids [ipv4-unicast|ipv6-unicast | ipv4-multicast | ipv6-multicast | mt mt-id-number] [ip-prefix[/prefix-length]] [sid sid] [adv-router system-id | hostname]
Context 
show>router>isis
Description 

This command displays IS-IS prefix SIDs.

Output 

Sample Output
*A:Dut-C# show router isis prefix-sids
===============================================================================
Rtr Base ISIS Instance 0 Prefix/SID Table
===============================================================================
Prefix SID Lvl/Typ SRMS AdvRtr
MT Flags
-------------------------------------------------------------------------------
4.0.0.1/32 1 2/Int. N Dut-B
0 RNnP
4.0.0.1/32 1 2/Int. N Dut-C
0 RNnP
4.0.0.1/32 1 1/Int. N Dut-D
0 NnP
4.0.0.1/32 1 2/Int. N Dut-D
0 NnP
4.0.0.1/32 1 2/Int. N Dut-E
0 RNnP
10.20.1.2/32 1002 1/Int. N Dut-B
0 NnP
10.20.1.2/32 1002 2/Int. N Dut-B
0 NnP
10.20.1.2/32 1002 2/Int. N Dut-C
0 RNnP
10.20.1.2/32 1002 2/Int. N Dut-D
0 RNnP
10.20.1.2/32 1002 2/Int. N Dut-E
0 RNnP
10.20.1.3/32 1003 2/Int. N Dut-B
0 RNnP
10.20.1.3/32 1003 1/Int. N Dut-C
0 NnP
10.20.1.3/32 1003 2/Int. N Dut-C
0 NnP
10.20.1.3/32 1003 2/Int. N Dut-D
0 RNnP
10.20.1.3/32 1003 2/Int. N Dut-E
0 RNnP
10.20.1.4/32 1004 2/Int. N Dut-B
0 RNnP
10.20.1.4/32 1004 2/Int. N Dut-C
0 RNnP
10.20.1.4/32 1004 1/Int. N Dut-D
0 NnP
10.20.1.4/32 1004 2/Int. N Dut-D
0 NnP
10.20.1.4/32 1004 2/Int. N Dut-E
0 RNnP
10.20.1.5/32 1005 2/Int. N Dut-B
0 RNnP
10.20.1.5/32 1005 2/Int. N Dut-C
0 RNnP
10.20.1.5/32 1005 2/Int. N Dut-D
0 RNnP
10.20.1.5/32 1005 1/Int. N Dut-E
0 NnP
10.20.1.5/32 1005 2/Int. N Dut-E
0 NnP
-------------------------------------------------------------------------------
No. of Prefix/SIDs: 25
Flags: R = Re-advertisement
N = Node-SID
nP = no penultimate hop POP
E = Explicit-Null
V = Prefix-SID carries a value
L = value/index has local significance
===============================================================================
*A:Dut-C#

routes

Syntax 
routes [ipv4-unicast | ipv6-unicast | ipv4-multicast | ipv6-multicast | mt mt-id-number] [ip-prefix[/prefix-length]] [alternative] [exclude-shortcut]
Context 
show>router>isis
Description 

This command displays the routes in the IS-IS route table.

Parameters 
ipv4-unicast—
Displays IPv4 unicast parameters.
ipv6-unicast—
Displays IPv6 unicast parameters.
mt mt-id-number—
Displays multi-topology parameters.
Values—
0, 2
alternative—
Displays LFA details.
exclude-shortcut—
Displays the routes without shortcuts
Output 

IS-IS Route Output

The following table describes IS-IS route output fields.

Table 36:  IS-IS Route Output Fields   

Label

Description

Prefix

The route prefix and mask.

Metric MT

The route’s metric.

Lvl/Type

Specifies the level (1 or 2) and the route type, Internal (Int) or External (Ext).

Version

SPF version that generated route.

Nexthop

System ID of nexthop, give hostname if possible.

Hostname

Hostname for the specific system-id.

Sample Output
*A:Dut-C# show router isis routes
=======================================================================
Rtr Base ISIS Instance 0 Route Table
=======================================================================
Prefix[Flags] Metric Lvl/Typ Ver. SysID/Hostname
NextHop MT AdminTag/SID[F]
-----------------------------------------------------------------------
1.1.2.0/24 20 1/Int. 0 Dut-A
1.1.3.1 0 0
1.1.2.0/24 20 1/Int. 0 Dut-B
1.2.3.2 0 0
1.1.3.0/24 10 1/Int. 0 Dut-C
0.0.0.0 0 0
1.2.3.0/24 10 1/Int. 0 Dut-C
0.0.0.0 0 0
1.2.4.0/24 20 1/Int. 0 Dut-B
1.2.3.2 0 0
1.3.5.0/24 10 1/Int. 0 Dut-C
0.0.0.0 0 0
1.4.5.0/24 20 1/Int. 0 Dut-E
1.3.5.5 0 0
1.4.6.0/24 30 1/Int. 0 Dut-B
1.2.3.2 0 0
1.4.6.0/24 30 1/Int. 0 Dut-E
1.3.5.5 0 0
10.20.1.1/32 10 1/Int. 0 Dut-A
1.1.3.1 0 0
10.20.1.2/32 10 1/Int. 0 Dut-B
1.2.3.2 0 0
10.20.1.3/32 0 1/Int. 0 Dut-C
0.0.0.0 0 0
10.20.1.4/32 20 1/Int. 0 Dut-B
1.2.3.2 0 0
10.20.1.4/32 20 1/Int. 0 Dut-E
1.3.5.5 0 0
10.20.1.5/32 10 1/Int. 0 Dut-E
1.3.5.5 0 0
10.20.1.6/32 30 1/Int. 0 Dut-B
1.2.3.2 0 0
10.20.1.6/32 30 1/Int. 0 Dut-E
1.3.5.5 0 0
-----------------------------------------------------------------------
No. of Routes: 17
Flags: L = LFA nexthop available
=======================================================================
*A:Dut-C#
*A:Dut-C# show router isis routes ipv4-unicast
===============================================================================
Rtr Base ISIS Instance 0 Route Table
===============================================================================
Prefix[Flags] Metric Lvl/Typ Ver. SysID/Hostname
NextHop MT AdminTag/SID[Flags]
-------------------------------------------------------------------------------
1.2.3.0/24 10 1/Int. 8 Dut-C
0.0.0.0 0 0
1.2.4.0/24 20 1/Int. 8 Dut-D
1.3.4.4 0 0
1.2.5.0/24 20 1/Int. 8 Dut-B
1.2.3.2 0 0
1.3.4.0/24 10 1/Int. 8 Dut-C
0.0.0.0 0 0
1.3.5.0/24 [L] 30 1/Int. 11 Dut-B
1.2.3.2 0 0
1.4.5.0/24 20 1/Int. 8 Dut-D
1.3.4.4 0 0
2.3.4.0/24 40 1/Int. 11 Dut-D
1.3.4.4 0 0
4.0.0.1/32 10 1/Int. 8 Dut-D
1.3.4.4 0 0/1[NnP]
10.20.1.2/32 10 1/Int. 8 Dut-B
1.2.3.2 0 0/1002[NnP]
10.20.1.3/32 0 1/Int. 5 Dut-C
0.0.0.0 0 0/1003[NnP]
10.20.1.4/32 10 1/Int. 8 Dut-D
1.3.4.4 0 0/1004[NnP]
10.20.1.5/32 [L] 20 1/Int. 11 Dut-B
1.2.3.2 0 0/1005[NnP]
10.21.1.2/32 10 1/Int. 8 Dut-B
1.2.3.2 0 0
10.21.1.3/32 0 1/Int. 5 Dut-C
0.0.0.0 0 0
10.21.1.4/32 10 1/Int. 8 Dut-D
1.3.4.4 0 0
10.21.1.5/32 [L] 20 1/Int. 11 Dut-B
1.2.3.2 0 0
-------------------------------------------------------------------------------
No. of Routes: 16
Flags: L = LFA nexthop available
===============================================================================
*A:Dut-C# show router isis routes ipv4-unicast alternative
===============================================================================
Rtr Base ISIS Instance 0 Route Table (alternative)
===============================================================================
Prefix[Flags] Metric Lvl/Typ Ver. SysID/Hostname
NextHop MT AdminTag
Alt-Nexthop Alt- Alt-Type
Metric
-------------------------------------------------------------------------------
1.2.3.0/24 10 1/Int. 8 Dut-C
0.0.0.0 0 0
1.2.4.0/24 20 1/Int. 8 Dut-D
1.3.4.4 0 0
1.2.5.0/24 20 1/Int. 8 Dut-B
1.2.3.2 0 0
1.3.4.0/24 10 1/Int. 8 Dut-C
0.0.0.0 0 0
1.3.5.0/24 30 1/Int. 11 Dut-B
1.2.3.2 0 0
1.3.4.4(L) 30 NP
1.4.5.0/24 20 1/Int. 8 Dut-D
1.3.4.4 0 0
2.3.4.0/24 40 1/Int. 11 Dut-D
1.3.4.4 0 0
4.0.0.1/32 10 1/Int. 8 Dut-D
1.3.4.4 0 0/1[NnP]
10.20.1.2/32 10 1/Int. 8 Dut-B
1.2.3.2 0 0/1002[NnP]
10.20.1.3/32 0 1/Int. 5 Dut-C
0.0.0.0 0 0/1003[NnP]
10.20.1.4/32 10 1/Int. 8 Dut-D
1.3.4.4 0 0/1004[NnP]
10.20.1.5/32 20 1/Int. 11 Dut-B
1.2.3.2 0 0/1005[NnP]
1.3.4.4(L) 20 NP
10.21.1.2/32 10 1/Int. 8 Dut-B
1.2.3.2 0 0
10.21.1.3/32 0 1/Int. 5 Dut-C
0.0.0.0 0 0
10.21.1.4/32 10 1/Int. 8 Dut-D
1.3.4.4 0 0
10.21.1.5/32 20 1/Int. 11 Dut-B
1.2.3.2 0 0
1.3.4.4(L) 20 NP
-------------------------------------------------------------------------------
No. of Routes: 16
Flags: L = Loop-Free Alternate nexthop
Legend: LP = linkProtection, NP = nodeProtection
===============================================================================
*A:Dut-C#

spf-log

Syntax 
spf-log [detail]
Context 
show>router>isis
Description 

This command displays IS-IS SPF log information.

Parameters 
detail—
Displays detailed spf-log information.
Output 

Router IS-IS SFP Log Output

The following table describes the IS-IS SPF log output fields.

Table 37:  IS-IS SPF Log Output Fields   

Label

Description

When

Displays the timestamp when the SPF run started on the system.

Duration

Displays the time (in hundredths of a second) required to complete the SPF run.

L1 Nodes

Displays the number of Level 1 nodes involved in the SPF run.

L2 Nodes

Displays the number of Level 2 nodes involved in the SPF run.

Event Count

Displays the number of SPF events that triggered the SPF calculation.

Type

Displays the SPF type, Reg (regular) or Lfa (loop free alternative).

Trigger LSP

Displays the LSP that triggered the SPF run.

Reason

Displays the reason(s) for the SPF run.

NEWADJ: An adjacency changed.

NEWLSP: A new LSP was received.

NEWAREA: An area changed.

NEWREACH: A prefix changed.

ECMPCHANGED: An ECMP path changed.

NEWMETRIC: A prefix metric changed.

RESTART: The graceful restart exited.

LSPEXPIRED: An LSP expired.

DBCHANGED: The LSP database was cleared by an administrator.

LSPCONTENT: The content of an LSP changed.

NEWPREF: The external route preference changed.

NEWNLPID: The routed protocols (IPv4 or IPv6) changed.

MANUALREQ: An SPF calculation was requested by an administrator.

ADMINTAGCHANGED: An administrative tag changed.

TUNNELCHANGED: An MPLS tunnel changed.

Sample Output
*A:Dut-C# show router isis spf-log
===============================================================================
Rtr Base ISIS Instance 0 SPF Log
===============================================================================
When Duration L1 Nodes L2 Nodes Event Count Type
-------------------------------------------------------------------------------
01/26/2015 11:22:19 <0.01s - - - pLfa
01/26/2015 11:22:19 <0.01s - - - rLfa
01/26/2015 11:22:20 <0.01s 4 4 25 Reg
01/26/2015 11:22:20 <0.01s - - - Lfa
01/26/2015 11:22:20 <0.01s - - - rLfa
01/26/2015 11:22:24 <0.01s 4 4 11 Reg
01/26/2015 11:22:24 <0.01s - - - Lfa
01/26/2015 11:22:24 <0.01s - - - rLfa
01/26/2015 11:22:32 <0.01s 4 4 21 Reg
01/26/2015 11:22:32 <0.01s - - - Lfa
01/26/2015 11:22:32 <0.01s - - - rLfa
01/26/2015 11:22:33 <0.01s - - - pSpf
01/26/2015 11:22:33 <0.01s - - - pLfa
01/26/2015 11:22:33 <0.01s - - - rLfa
01/26/2015 11:22:41 <0.01s - - - pSpf
01/26/2015 11:22:41 <0.01s - - - pLfa
01/26/2015 11:22:41 <0.01s - - - rLfa
01/26/2015 11:22:51 <0.01s 4 4 4 Reg
01/26/2015 11:22:51 <0.01s - - - Lfa
01/26/2015 11:22:51 <0.01s - - - rLfa
-------------------------------------------------------------------------------
Log Entries : 20
===============================================================================
*A:Dut-C#
A:SetupCLI# show router isis spf-log detail
===============================================================================
Rtr Base ISIS Instance 0 SPF Log
===============================================================================
When : 10/01/2011 03:40:25 Duration : <0.01s
L1 Nodes : 1 L2 Nodes : 1
Trigger LSP: SetupCLI.00-00 Event Count : 78
SPF Type : Reg
Reason : LSPCONTENT
When : 10/01/2011 03:40:26 Duration : <0.01s
L1 Nodes : 1 L2 Nodes : 1
Trigger LSP: SetupCLI.00-00 Event Count : 1
SPF Type : Reg
Reason : LSPCONTENT
When : 10/01/2011 03:40:25 Duration : <0.01s
L1 Nodes : 1 L2 Nodes : 1
Trigger LSP: SetupCLI.00-00 Event Count : 25
SPF Type : Reg
Reason : NEWAREA NEWREACH LSPCONTENT MANUALREQ
When : 10/01/2011 03:40:27 Duration : <0.01s
L1 Nodes : 1 L2 Nodes : 1
Trigger LSP: SetupCLI.00-00 Event Count : 1
SPF Type : Reg
Reason : LSPCONTENT
When : 10/01/2011 03:40:27 Duration : <0.01s
L1 Nodes : 0 L2 Nodes : 0
Trigger LSP: SetupCLI.00-00 Event Count : 1
SPF Type : Lfa
Reason : LSPCONTENT
When : 10/01/2011 03:40:25 Duration : <0.01s
L1 Nodes : 1 L2 Nodes : 1
Trigger LSP: SetupCLI.00-00 Event Count : 75
SPF Type : Reg
Reason : LSPCONTENT
When : 10/01/2011 03:40:27 Duration : <0.01s
L1 Nodes : 1 L2 Nodes : 1
Trigger LSP: SetupCLI.00-00 Event Count : 1
SPF Type : Reg
Reason : LSPCONTENT
===============================================================================
A:SetupCLI#

statistics

Syntax 
statistics
Context 
show>router>isis
Description 

This command displays information regarding IS-IS traffic statistics.

Output 

IS-IS Statistics Output

This table describes IS-IS statistics output fields.

Table 38:  IS-IS Statistics Output Fields   

Label

Description

Purge Initiated

The number of times purges have been initiated.

SPF Runs

The number of times shortest path first calculations have been made.

LSP Regens

The count of LSP regenerations.

Requests

The number of CSPF requests made to the protocol.

Paths Found

The number of responses to CSPF requests for which paths satisfying the constraints were found.

PDU Type

The PDU type.

Received

The count of link state PDUs received by this instance of the

protocol.

Processed

The count of link state PDUs processed by this instance of the protocol.

Dropped

The count of link state PDUs dropped by this instance of the

protocol.

Sent

The count of link state PDUs sent out by this instance of the

protocol.

Retransmitted

The count of link state PDUs that had to be retransmitted by this instance of the protocol.

Sample Output
*A:Dut-C# show router isis statistics
===============================================================================
Rtr Base ISIS Instance 0 Statistics
===============================================================================
ISIS Instance : 0
Purge Initiated : 0 LSP Regens. : 17
Sid SRGB err : 0 Sid dupl err : 0
CSPF Statistics
Requests : 0 Request Drops : 0
Paths Found : 0 Paths Not Found: 0
SPF Statistics
SPF Runs : 7
Last runTimeStamp: 01/26/2015 11:22:50
Partial SPF Runs : 3
Last runTimeStamp: 01/26/2015 11:22:51
LFA Statistics
LFA Runs : 7
Last runTimeStamp: 01/26/2015 11:22:51
Partial LFA Runs : 3
Last runTimeStamp: 01/26/2015 11:22:41
RLFA Statistics
RLFA Runs : 10
Last runTimeStamp: 01/26/2015 11:22:51
-------------------------------------------------------------------------------
PDU Type Received Processed Dropped Sent Retransmitted
-------------------------------------------------------------------------------
LSP 164 164 0 151 0
IIH 146 146 0 147 0
CSNP 288 288 0 291 0
PSNP 71 71 0 74 0
Unknown 0 0 0 0 0
===============================================================================
*A:Dut-C#

status

Syntax 
status
Context 
show>router>isis
Description 

This command displays information regarding IS-IS status.

Output 

IS-IS Status Output

The following table describes IS-IS status output fields.

Table 39:  IS-IS Status Output Fields   

Label

Description

System Id

The configured and operational IS-IS system ID.

Router Id

The configured and operational IS-IS router ID.

Admin State

Oper State

Up

IS-IS is administratively up.

Down

IS-IS is administratively down.

Ipv4 Routing

Enabled

IPv4 routing is enabled.

Disabled

IPv4 routing is disabled.

Ipv6 Routing

Disabled

IPv6 routing is disabled.

Enabled, Native

IPv6 routing is enabled.

Enabled, Multi-topology

Multi-topology TLVs for IPv6 routing is enabled.

Multi-topology

Disabled

Multi-topology TLVs for IPv6 routing is disabled.

Enabled

Multi-topology TLVs for IPv6 routing is enabled.

Last Enabled

The date/time when IS-IS was last enabled in the router.

Level Capability

The routing level for the IS-IS routing process.

Authentication Check

True

All IS-IS mismatched protocol packets are rejected.

False

Authentication is performed on received IS-IS protocol packets but mismatched packets are not rejected.

Authentication Type

The method of authentication used to verify the authenticity of packets sent by neighboring routers on an IS-IS interface.

Traffic Engineering

Enabled

TE is enabled for the router.

Disabled

TE is disabled so that TE metrics are not generated and are ignored when received by this node.

Graceful Restart

Enabled

Graceful restart is enabled for this instance of IS-IS on the router.

Disabled

Graceful restart capability is disabled for this instance of IS-IS on the router.

Ldp Sync Admin State

Indicates whether the IGP-LDP synchronization feature is enabled or disabled on all interfaces participating in the OSPF routing protocol.

LFA NH Template

Indicates the LFA template that is applied for the configured LFA policies.

LFA Policies

Indicates the configured LFA policies.

Loopfree-Alternate

When enabled, excludes a prefix entry defined in the specified LFA policy from LFA calculation.

Sample Output
*A:Dut-C# show router isis status
===============================================================================
Rtr Base ISIS Instance 0 Status
===============================================================================
ISIS Cfg System Id : 0000.C0A8.0001
ISIS Oper System Id : 0000.C0A8.0001
ISIS Cfg Router Id : 0.0.0.0
ISIS Oper Router Id : 10.20.1.3
Admin State : Up
Oper State : Up
Ipv4 Routing : Enabled
Ipv6 Routing : Enabled, Native
Mcast Ipv4 Routing : Enabled, Native
Mcast Ipv6 Routing : Enabled, Native
Last Enabled : 01/26/2015 11:22:13
Level Capability : L1L2
Authentication Check : True
Auth Keychain : Disabled
Authentication Type : None
CSNP-Authentication : Enabled
HELLO-Authentication : Enabled
PSNP-Authentication : Enabled
Traffic Engineering : Enabled
Graceful Restart : Disabled
GR Helper Mode : Disabled
Overload-On-Boot Tim*: 0
Overload Max-Metric : False
Overload-On-Boot Max*: False
LSP Lifetime : 1200
LSP Refresh Interval : 600
LSP Wait : 5 sec (Max) 0 sec (Initial) 1 sec (Second)
LSP MTU Size : 1300 (Config) 1300 (Oper)
Adjacency Check : loose
L1 Auth Keychain : Disabled
L1 Auth Type : none
L1 CSNP-Authenticati*: Enabled
L1 HELLO-Authenticat*: Enabled
L1 PSNP-Authenticati*: Enabled
L1 Preference : 15
L1 Ext. Preference : 160
L1 Wide Metrics : Enabled
L1 LSDB Overload : Disabled
L1 LSPs : 4
L1 Default Metric : 10
L1 IPv6 Def Metric : 10
L1 Mcast IPv4 Def Me*: 10
L1 Mcast IPv6 Def Me*: 10
L1 Adv Router Cap : Enabled
Last SPF : 01/26/2015 11:22:51
SPF Wait : 10 sec (Max) 1000 ms (Initial) 1000 ms (Second)
Multi-topology : Disabled
IPv6-Unicast MT2 : Disabled
IPv4-Multicast MT3 : Disabled
IPv6-Multicast MT4 : Disabled
Area Addresses : 49.0001
Total Exp Routes(L1) : 0
IID TLV : Disabled
All-L1-MacAddr : 01:80:c2:00:00:14
L2 Auth Keychain : Disabled
L2 Auth Type : none
L2 CSNP-Authenticati*: Enabled
L2 HELLO-Authenticat*: Enabled
L2 PSNP-Authenticati*: Enabled
L2 Preference : 18
L2 Ext. Preference : 165
L2 Wide Metrics : Enabled
L2 LSDB Overload : Disabled
L2 LSPs : 8
L2 Default Metric : 10
L2 IPv6 Def Metric : 10
L2 Mcast IPv4 Def Me*: 10
L2 Mcast IPv6 Def Me*: 10
L2 Adv Router Cap : Enabled
Export Policies : None
LFA Policies : None
Multicast Import : None
Advertise-Passive-On*: Disabled
Ignore Attached Bit : Disabled
Suppress Attached Bit: Disabled
Default Route Tag : None
Rib Prio List High : None
Rib Prio Tag High : None
Ldp Sync Admin State : Up
LDP-over-RSVP : Disabled
RSVP-Shortcut : Disabled
Advertise-Tunnel-Link: Disabled
Export Limit : 0
Exp Lmt Log Percent : 0
Total Exp Routes(L2) : 0
All-L2-MacAddr : 01:80:c2:00:00:15
Loopfree-Alternate : Enabled
Remote-LFA : Enabled
L1 LFA : Included
L2 LFA : Included
Advertise Router Cap : Area
Hello Padding : Disabled
Ignore Lsp Errors : Disabled
Reference Bandwidth : 0
Ucast Import Disable : None
Segment Routing : Up
===============================================================================
* indicates that the corresponding row element may have been truncated.
*A:Dut-C#

The following sample output and detail sample output show LFA policies configured in the configure router isis context.

*A:SRR# show router isis status
===============================================================================
Rtr Base ISIS Instance 0 Status
===============================================================================
ISIS Cfg System Id   : 0000.C0A8.0001
ISIS Oper System Id  : 0000.C0A8.0001
ISIS Cfg Router Id : 0.0.0.0
ISIS Oper Router Id : 10.20.1.3
Admin State : Up
Oper State : Up
Ipv4 Routing : Enabled
Ipv6 Routing : Disabled
Mcast Ipv4 Routing : Enabled, Native
Mcast Ipv6 Routing : Disabled
Last Enabled : 04/29/2014 15:14:33
Level Capability : L1
Authentication Check : True
Auth Keychain : Disabled
Authentication Type : None
CSNP-Authentication : Enabled
HELLO-Authentication : Enabled
PSNP-Authentication : Enabled
Traffic Engineering : Disabled
Graceful Restart : Disabled
GR Helper Mode : Disabled
Overload-On-Boot Tim*: 0
Overload Max-Metric : False
Overload-On-Boot Max*: False
LSP Lifetime : 1200
LSP Refresh Interval : 600
LSP Wait : 5 sec (Max) 0 sec (Initial) 1 sec (Second)
LSP MTU Size : 1492 (Config) 1492 (Oper)
Adjacency Check : loose
L1 Auth Keychain : Disabled
L1 Auth Type : none
L1 CSNP-Authenticati*: Enabled
L1 HELLO-Authenticat*: Enabled
L1 PSNP-Authenticati*: Enabled
L1 Preference : 15
L1 Ext. Preference : 160
L1 Wide Metrics : Enabled
L1 LSDB Overload : Disabled
L1 LSPs : 5
L1 Default Metric : 10
L1 IPv6 Def Metric : 10
L1 Mcast IPv4 Def Me*: 10
L1 Mcast IPv6 Def Me*: 10
Last SPF : 04/29/2014 15:22:13
SPF Wait : 10 sec (Max) 1000 ms (Initial) 1000 ms (Second)
Multi-topology : Disabled
IPv6-Unicast MT2 : Disabled
IPv4-Multicast MT3 : Disabled
IPv6-Multicast MT4 : Disabled
Area Addresses : 49.0001
Total Exp Routes(L1) : 1
IID TLV : Disabled
All-L1-MacAddr : 01:80:c2:00:00:14
L2 Auth Keychain : Disabled
L2 Auth Type : none
L2 CSNP-Authenticati*: Enabled
L2 HELLO-Authenticat*: Enabled
L2 PSNP-Authenticati*: Enabled
L2 Preference : 18
L2 Ext. Preference : 165
L2 Wide Metrics : Disabled
L2 LSDB Overload : Disabled
L2 LSPs : 0
L2 Default Metric : 10
L2 IPv6 Def Metric : 10
L2 Mcast IPv4 Def Me*: 10
L2 Mcast IPv6 Def Me*: 10
Export Policies : static
LFA Policies : pol1
: pol2
: pol3
: pol4
: pol5
Multicast Import : None
Advertise-Passive-On*: Disabled
Suppress Default : Disabled
Default Route Tag : None
Ldp Sync Admin State : Up
LDP-over-RSVP : Disabled
RSVP-Shortcut : Disabled
Advertise-Tunnel-Link: Disabled
Export Limit : 0
Exp Lmt Log Percent : 0
Total Exp Routes(L2) : 0
All-L2-MacAddr : 01:80:c2:00:00:15
Loopfree-Alternate : Enabled
L1 LFA : Included
L2 LFA : Included
Advertise Router Cap : disable
Hello Padding : disable
===============================================================================
* indicates that the corresponding row element may have been truncated.
*A:SRR#
*A:SRR# show router isis interface "DUTC_TO_DUTE.1.0" detail
===============================================================================
Rtr Base ISIS Instance 0 Interfaces (detail)
===============================================================================
-------------------------------------------------------------------------------
Interface : DUTC_TO_DUTE.1.0 Level Capability: L1L2
Oper State : Up Admin State : Up
Auth Keychain : Disabled
Auth Type : None Auth State : Enabled
Circuit Id : 3 Retransmit Int. : 5
Type : Broadcast LSP Pacing Int. : 100
Oper Type : Broadcast CSNP Int. : 10
Mesh Group : Inactive BER : none
LFA NH Template : "template1" Bfd Enabled : No
Topology : IPv4-Unicast, IPv6-Unicast, IPv4-Multicast, IPv6-Multicast
Te Metric : 0 Te State : Down
Admin Groups : None
Ldp Sync : outOfService Ldp Sync Wait : Disabled
Ldp Timer State : Disabled Ldp Tm Left : 0
Route Tag : None LFA : Included
Level : 1 Adjacencies : 0
Desg. IS : Dut-C
Auth Keychain : Disabled
Auth Type : None Metric : 10
Hello Timer : 9 IPv6-Ucast-Met : 10
Priority : 64 IPv6-Mcast-Met : 10
Passive : No IPv4-Mcast-Met : 10
SD-Offset : 0 SF-Offset : 0
Hello Mult. : 3
Level : 2 Adjacencies : 0
Desg. IS : Dut-C
Auth Keychain : Disabled
Auth Type : None Metric : 10
Hello Timer : 9 IPv6-Ucast-Met : 10
Priority : 64 IPv6-Mcast-Met : 10
Passive : No IPv4-Mcast-Met : 10
SD-Offset : 0 SF-Offset : 0
Hello Mult. : 3
===============================================================================
*A:SRR#

summary-address

Syntax 
summary-address [ip-address [/mask]]
Context 
show>router>isis
Description 

Displays IS-IS summary addresses.

Output 

Router IS-IS Summary Address Output

The following table describes the IS-IS summary address output fields.

Table 40:  IS-IS Summary Address Output Fields   

Label

Description

Address

The IP address.

Level

Specifies the IS-IS level from which the prefix should be summarized.

Sample Output
A:ALA-48# show router isis summary-address
===============================================================================
Rtr Base ISIS Instance 0 Summary Address
===============================================================================
Address Level
-------------------------------------------------------------------------------
1.0.0.0/8 L1
2.1.0.0/24 L1L2
3.1.2.3/32 L2
-------------------------------------------------------------------------------
Summary Addresses : 3
===============================================================================
A:ALA-48#

topology

Syntax 
topology [ipv4-unicast | ipv6-unicast | ipv4-multicast | ipv6-multicast | mt mt-id-number] [lfa] [detail]
Context 
show>router>isis
Description 

This command shows IS-IS topology information.

Parameters 
ipv4-unicast—
Displays IPv4 unicast parameters.
ipv6-unicast—
Displays IPv6 unicast parameters.
ipv4-multicast—
Displays IPv4 multicast parameters.
ipv6-multicast—
Displays IPv6 multicast parameters.
mt mt-id-number—
Displays multi-topology parameters.
Values—
0, 2, 3, 4
lfa—
Displays LFA (loop free alternative) information.
detail—
Displays detailed topology information.
Output 

Router IS-IS Topology Output

The following table describes the IS-IS topology output fields.

Table 41:  IS-IS Topology Output Fields   

Label

Description

Node

Displays the IP address.

Interface

Displays the interface name.

Nexthop

Displays the nexthop IP address.

LFA Interface

Displays the LFA interface name.

LFA Nexthop

Displays the LFA nexthop IP address.

Sample Output
*A:Dut-A# show router isis topology
===============================================================================
Rtr Base ISIS Instance 0 Topology Table
===============================================================================
Node Interface Nexthop
-------------------------------------------------------------------------------
IS-IS IP paths (MT-ID 0), Level 1
-------------------------------------------------------------------------------
Dut-B.00 ip-3FFE::A0A:101 Dut-B
Dut-B.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.00 ip-3FFE::A0A:101 Dut-B
Dut-CA.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.02 ip-3FFE::A0A:101 Dut-B
Dut-CA.05 ip-3FFE::A0A:101 Dut-B
Dut-DA.00 ip-3FFE::A0A:101 Dut-B
Dut-DA.01 ip-3FFE::A0A:101 Dut-B
Dut-E.00 ip-3FFE::A0A:101 Dut-B
Dut-F.00 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.01 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.02 ies-1-3FFE::A0A:1501 Dut-F
-------------------------------------------------------------------------------
IS-IS IPv6 paths (MT-ID 2), Level 1
-------------------------------------------------------------------------------
Dut-B.00 ip-3FFE::A0A:101 Dut-B
Dut-B.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.00 ip-3FFE::A0A:101 Dut-B
Dut-CA.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.02 ip-3FFE::A0A:101 Dut-B
Dut-CA.05 ip-3FFE::A0A:101 Dut-B
Dut-DA.00 ip-3FFE::A0A:101 Dut-B
Dut-DA.01 ip-3FFE::A0A:101 Dut-B
Dut-E.00 ip-3FFE::A0A:101 Dut-B
Dut-F.00 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.01 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.02 ies-1-3FFE::A0A:1501 Dut-F
-------------------------------------------------------------------------------
IS-IS IP paths (MT-ID 0), Level 2
-------------------------------------------------------------------------------
Dut-B.00 ip-3FFE::A0A:101 Dut-B
Dut-B.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.00 ip-3FFE::A0A:101 Dut-B
Dut-CA.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.02 ip-3FFE::A0A:101 Dut-B
Dut-CA.05 ip-3FFE::A0A:101 Dut-B
Dut-DA.00 ip-3FFE::A0A:101 Dut-B
Dut-DA.01 ip-3FFE::A0A:101 Dut-B
Dut-E.00 ip-3FFE::A0A:101 Dut-B
Dut-F.00 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.01 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.02 ies-1-3FFE::A0A:1501 Dut-F
-------------------------------------------------------------------------------
IS-IS IPv6 paths (MT-ID 2), Level 2
-------------------------------------------------------------------------------
Dut-B.00 ip-3FFE::A0A:101 Dut-B
Dut-B.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.00 ip-3FFE::A0A:101 Dut-B
Dut-CA.01 ip-3FFE::A0A:101 Dut-B
Dut-CA.02 ip-3FFE::A0A:101 Dut-B
Dut-CA.05 ip-3FFE::A0A:101 Dut-B
Dut-DA.00 ip-3FFE::A0A:101 Dut-B
Dut-DA.01 ip-3FFE::A0A:101 Dut-B
Dut-E.00 ip-3FFE::A0A:101 Dut-B
Dut-F.00 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.01 ies-1-3FFE::A0A:1501 Dut-F
Dut-F.02 ies-1-3FFE::A0A:1501 Dut-F
===============================================================================
*A:Dut-A#

Clear Commands

isis

Syntax 
isis [isis-instance]
Context 
clear>router>isis
Description 

This command enables the context to clear and reset IS-IS protocol entities.

Parameters 
isis-instance—
Specifies the instance ID for the IS-IS instance.
Values—
1 to 31

adjacency

Syntax 
adjacency [system-id]
Context 
clear>router>isis
Description 

This command clears and resets the entries from the IS-IS adjacency database.

Parameters 
system-id—
When the system ID is entered, only the specified entries are removed from the IS-IS adjacency database.

database

Syntax 
database [system-id]
Context 
clear>router>isis
Description 

This command removes the entries from the IS-IS link-state database which contains information about PDUs.

Parameters 
system-id—
When the system ID is entered, only the specified entries are removed from the IS-IS link-state database.

export

Syntax 
export
Context 
clear>router>isis
Description 

This command re-evaluates route policies participating in the export mechanism, either as importers or exporters of routes.

overload

Syntax 
overload {rtm | fib | prefix-limit}
Context 
clear>router>isis
Description 

This command clears the IS-IS overload.

Parameters 
rtm—
Clears the overload because IS-IS reached the configured maximum route limit set with maximum-routes or maximum-ipv6-routes in a VPRN.
fib —
Clears the overload because adding routes to the hardware FIB failed.
prefix-limit —
Clears the overload when IS-IS has reached the configured maximum prefix limit set with the prefix-limit command.

spf-log

Syntax 
spf-log
Context 
clear>router>isis
Description 

This command clears the SPF log.

statistics

Syntax 
statistics
Context 
clear>router>isis
Description 

This command clears and resets IS-IS statistics.

Debug Commands

isis

Syntax 
isis [isis-instance]
Context 
debug>router
Description 

This command enables the context to debug IS-IS protocol entities.

Parameters 
isis-instance—
Specifies the IS-IS instance.
Values—
1 to 31
Output 

Sample output for the command is shown below.

Sample Output
*A:Dut-C# /tools dump router isis sr-database  prefix 10.20.1.5 detail 
===============================================================================
Rtr Base ISIS Instance 0 SR Database
===============================================================================
103   474390 10.20.1.5       LfaNhops  1   0  15      1000    1    1    
  1492   1500    1500   0 0  1  1   0100.2000.1005 SR_ERR_OK 
        IP:10.10.5.5 gifId:3 ifId:4 protectId:7 numLabels:1 outLbl:474390 isAdv:1 isLfaX:0
        IP:10.10.12.2 gifId:5 ifId:6 protectId:0 numLabels:2 outLbl1:474389 outLbl2:474390 numLfaNhops:1 isAdv:0
-------------------------------------------------------------------------------
D = duplicate pending 
xL = exclude from LFA 
rL = remote LFA 
Act = tunnel active 
LDP = LDP FEC is the SID NH for SR-LDP stitching 
===============================================================================
*A:Dut-C# /tools dump router isis sr-database nh-type ldp  detail 
===============================================================================
Rtr Base ISIS Instance 0 SR Database
===============================================================================
SID   Label  Prefix          Last-act  Lev MT TnlPref Metric  IpNh SrNh 
  Mtu    MtuPrim MtuBk  D xL rL Act AdvSystemId    SrErr 
-------------------------------------------------------------------------------
1000  475287 10.20.1.4       AddTnl    1   0  15      0       1    1    
  0      0       0      0 0  0  1   0100.2000.1004 SR_ERR_OK 
        LDP: IP:10.20.1.4 tnlId:65546 tnlTyp:2 
1001  475288 10.20.1.5       AddTnl    1   0  15      0       1    1    
  0      0       0      0 0  0  1   0100.2000.1005 SR_ERR_OK 
        LDP: IP:10.20.1.5 tnlId:65548 tnlTyp:2 
1002  475289 10.20.1.6       AddTnl    1   0  15      0       1    1    
  0      0       0      0 0  0  1   0100.2000.1006 SR_ERR_OK 
        LDP: IP:10.20.1.6 tnlId:65549 tnlTyp:2 
-------------------------------------------------------------------------------
D = duplicate pending 
xL = exclude from LFA 
rL = remote LFA 
Act = tunnel active 
LDP = LDP FEC is the SID NH for SR-LDP stitching 
===============================================================================

adjacency

Syntax 
[no] adjacency [ip-int-name | ip-address | nbr-system-id]
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS adjacency.

The no form of the command disables debugging.

Parameters 
ip-address—
When specified, only adjacencies with the specified interface address are debugged.
Values—
ipv4-address:
  1. a.b.c.d (host bits must be 0)
ipv6-address:
  1. x:x:x:x:x:x:x:x (eight 16-bit pieces)
  2. x:x:x:x:x:x:d.d.d.d
  3. x: [0 to FFFF]H
  4. d: [0 to 255]D
ip-int-name—
When specified, only adjacencies with the specified interface name are debugged.
nbr-system-id—
When specified, only the adjacency with the specified ID is debugged.

cspf

Syntax 
[no] cspf
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS cspf.

The no form of the command disables debugging.

graceful-restart

Syntax 
[no] graceful-restart
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS graceful-restart.

The no form of the command disables debugging.

interface

Syntax 
interface [ip-int-name | ip-address]
no interface
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS interface.

The no form of the command disables debugging.

Parameters 
ip-address—
When specified, only the interface with the specified interface address is debugged.
Values—
ipv4-address:
  1. a.b.c.d (host bits must be 0)
ipv6-address:
  1. x:x:x:x:x:x:x:x (eight 16-bit pieces)
  2. x:x:x:x:x:x:d.d.d.d
  3. x: [0 to FFFF]H
  4. d: [0 to 255]D
ip-int-name—
When specified, only the interface with the specified interface name is debugged.

leak

Syntax 
leak [ip-address]
no leak
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS leaks.

The no form of the command disables debugging.

Parameters 
ip-address—
When specified, only the specified address is debugged for IS-IS leaks.
Values—
ipv4-address:
  1. a.b.c.d (host bits must be 0)
ipv6-address:
  1. x:x:x:x:x:x:x:x (eight 16-bit pieces)
  2. x:x:x:x:x:x:d.d.d.d
  3. x: [0 to FFFF]H
  4. d: [0 to 255]D

lsdb

Syntax 
[no] lsdb [level-number] [system-id | lsp-id]
Context 
debug>router>isis
Description 

This command enables debugging for Link State DataBase (LSDB).

The no form of the command disables debugging.

Parameters 
system-id—
When specified, only the specified system-id is debugged. Host name up to 38 characters.
lsp-id—
When specified, only the specified lsp-id is debugged. Hostname up to 38 characters.
level-number—
Specifies the interface level (1, 2, or 1 and 2).

misc

Syntax 
[no] misc
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS misc.

The no form of the command disables debugging.

packet

Syntax 
packet [packet-type] [ip-int-name | ip-address] [detail]
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS packets.

The no form of the command disables debugging.

Parameters 
ip-address—
When specified, only packets with the specified interface address are debugged.
Values—
ipv4-address:
  1. a.b.c.d (host bits must be 0)
ipv6-address:
  1. x:x:x:x:x:x:x:x (eight 16-bit pieces)
  2. x:x:x:x:x:x:d.d.d.d
  3. x: [0 to FFFF]H
  4. d: [0 to 255]D
ip-int-name—
When specified, only packets with the specified interface name are debugged.
packet-type—
When specified, only packets of the specified type are debugged.
Values—
ptop-hello | l1-hello | l2-hello | l1-psnp | l2-psnp | l1-csnp | l2-csnp | l1-lsp | l2-lsp
detail—
All output is displayed in the detailed format.

rtm

Syntax 
rtm [ip-address]
no rtm
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS route table manager (RTM).

The no form of the command disables debugging.

Parameters 
ip-address—
The specified IP address.
Values—
ipv4-address:
  1. a.b.c.d (host bits must be 0)
ipv6-address:
  1. x:x:x:x:x:x:x:x (eight 16-bit pieces)
  2. x:x:x:x:x:x:d.d.d.d
  3. x: [0 to FFFF]H
  4. d: [0 to 255]D

spf

Syntax 
[no] spf [level-number] [system-id]
Context 
debug>router>isis
Description 

This command enables debugging for IS-IS SFP.

The no form of the command disables debugging.

Parameters 
system-id—
When specified, only the specified system-id is debugged. A 6-octet system identifier (xxxx.xxxx.xxxx).
level-nunmber—
Specifies the interface level (1, 2, or 1 and 2).