Displaying IS-IS statistics

Use one or more of the following commands to verify IS-IS information. The commands do not have to be entered in this order.
  1. Enter the show isis command.
    device# show isis
    
    IS-IS Routing Protocol Operation State: Enabled
    IS-Type: Level-1-2
    System Id: 768e.f805.5812
    Manual area address(es): 11
    Level-1-2 Database State: On
    Administrative Distance 115
    Maximum Paths 8
    Default redistribution metric 0
    Default link metric for level-1 0 (conf)/ 10 (adv)
    Default link metric for level-2 0 (conf)/ 10 (adv)
    Protocol Routes Redistributed into IS-IS: None
    Number of Routes Redistributed into IS-IS: 0
    Level-1 Auth-mode: None
    Level-2 Auth-mode: None
    Metric Style Supported for Level-1: Narrow
    Metric Style Supported for Level-2: Narrow
    Graceful-Restart Helper Support: Enabled
    ISIS Partial SPF Optimizations: Enabled
    Timers:
    L1 SPF: Max-wait 5s Init-wait 5000ms Second-wait 5000ms
    L2 SPF: Max-wait 5s Init-wait 5000ms Second-wait 5000ms
    L1 SPF is not scheduled
    L2 SPF is not scheduled
    PSPF: Max-wait 5000ms Init-wait 2000ms Second-wait 5000ms
    PSPF is not scheduled
    LSP: max-lifetime 1200s refresh-interval 900s gen-interval 10s
    retransmit-interval 5s, lsp-interval 33ms
    SNP: csnp-interval 10s psnp-interval 2s
    Global Hello Padding: Enabled
    Global Hello Padding For Point to Point Circuits: Enabled
    Ptpt Three Way HandShake Mechanism: Enabled
    BGP Ipv4 Converged: False BGP Ipv6 Converged: False
    IS-IS Traffic Engineering Support: Disabled
    No ISIS Shortcuts Configured
    BFD: Disabled, BFD HoldoverInterval: 0
    NSR: Disabled
    LSP-SYNC: Not Globally Enabled
      
    
    This example output displays general IS-IS information..
  2. Enter the show isis config command.
    device# show isis config
    
    router isis
    net 11.768e.f805.5812.00
    address-family ipv4 unicast
    !
    address-family ipv6 unicast
    !
    
    This example shows the global IS-IS configuration commands that are in effect on the device..
  3. Enter the show isis counts command.
    device# show isis counts
    
    Area Mismatch: 0
    Max Area Mismatch: 0
    System ID Length Mismatch: 0
    LSP Sequence Number Skipped: 0
    LSP Max Sequence Number Exceeded: 0
    Level-1 Database Overload: 1
    Level-2 Database Overload: 0
    Our LSP Purged: 2
    
    This example shows IS-IS error statistics..
  4. Enter the show isis hostname command.
    device# show isis hostname
    
    Total number of entries in IS-IS Hostname Table: 1
    System ID Hostname * = local IS
    ----------------------------------------------------
    * 768e.f805.5812 R1        
    
    
    This example shows the router-name-to-system-ID mapping table entries for the device.
  5. Enter the show isis interface command.
    device# show isis interface
    
    Total number of IS-IS Interfaces: 11
    Interface: Ve 301
    Circuit State: UP Circuit Mode: Level 1-2
    Circuit Type: BCAST Passive State: FALSE
    Circuit Number: 2, MTU: 1500
    Level-1 Auth-mode: NONE
    Level-2 Auth-mode: NONE
    Level-1 Metric: 10, Level-1 Priority: 64
    Level-1 Hello Interval: 10, Level-1 Hello Multiplier: 3
    Level-1 Designated IS: R1-02 Level-1 DIS Changes: 2
    Level-2 Metric: 10, Level-2 Priority: 64
    Level-2 Hello Interval: 10, Level-2 Hello Multiplier: 3
    Level-2 Designated IS: R1-02 Level-2 DIS Changes: 2
    Next IS-IS LAN Level-2 Hello in 11 seconds
    Number of active Level-2 adjacencies: 0
    Next IS-IS LAN Level-1 Hello in 1 seconds
    Number of active Level-1 adjacencies: 0
    Circuit State Changes: 1 Circuit Adjacencies State Changes: 0
    Rejected Adjacencies: 0
    Circuit Authentication L1 failures: 0
    Circuit Authentication L2 failures: 0
    Bad LSPs: 0
    Control Messages Sent: 7577 Control Messages Received: 0
    Hello Padding: Enabled
    IP Enabled: TRUE
    IP Addresses:
    11.2.1.1/30
    IPv6 Enabled: FALSE
    MPLS TE Enabled: FALSE
    BFD Enabled: FALSE
    LDP-SYNC: Disabled, State:
    …
    This example shows information about IS-IS interfaces for a device.
  6. Enter the show isis interface command, using the brief keyword.
    device# show isis interface brief
    
    Total number of IS-IS Interfaces: 11
    Interface Type State Mode Passive MTU UpAdj DIS StateChg AdjStateChg
    Ve 301 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 302 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 303 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 304 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 305 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 306 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 307 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 308 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 309 BCAST UP L12 FALSE 1500 0 None 1 0
    Ve 310 BCAST UP L12 FALSE 1500 0 None 1 0
    Lo 1 BCAST UP L12 TRUE 0 0 None 1 0
    
    
    This example shows summarized information about IS-IS interfaces for a device.
  7. Enter the show isis neighbor command.
    device# show isis neighbor
    
    
    This example shows IS-IS neighbor information.
  8. Enter the show isis spf-log command.
    device# show isis spf-log
    
    ISIS Level-1 SPF Log
    When Duration Nodes Count Last-Trigger-LSP Trigger
    10h34m13s 0ms 1 10 R1.00-00 Interface State Change
    10h34m38s 0ms 1 2 R1.00-00 Interface Config Change
    10h34m43s 0ms 1 18 R1.00-00 Interface Config Change
    10h34m48s 0ms 1 5 R1.00-00 Interface State Change
    ISIS Level-2 SPF Log
    When Duration Nodes Count Last-Trigger-LSP Trigger
    10h34m13s 0ms 1 10 R1.00-00 Interface State Change
    10h34m38s 0ms 1 2 R1.00-00 Interface Config Change
    10h34m43s 0ms 1 18 R1.00-00 Interface Config Change
    10h34m48s 0ms 1 5 R1.00-00 Interface State Change
    
    This example shows IS-IS link-state packet (LSP) logging information.
  9. Enter the show isis traffic command.
    show isis traffic
    
                                 Message Received     Message Sent
     Level-1 Hellos              0                    44912
     Level-2 Hellos              0                    44927
     PTP Hellos                  0                    0
     Level-1 LSP                 0                    0
     Level-2 LSP                 0                    0
     Level-1 CSNP                0                    0
     Level-2 CSNP                0                    0
     Level-1 PSNP                0                    0
     Level-2 PSNP                0                    0
    
    This example shows information about IS-IS packet counts..