1104 CHAPTER 75: IS-IS DEBUGGING COMMANDS

// The IP address took effect on the IS-IS interface.

#Router A and Router B are interconnected and have established an IS-IS adjacency with each other. Router A is elected as the DIS. Enable debugging for the received IS-IS packets on Router A and Router B respectively.

ISIS-1-SNP: CSNP Range from 0000.0000.0000.00-00 to ffff.ffff.ffff.ff-ff.

ISIS-1-SNP: Rxed L1 CSNP From 0000.0000.0001 (Vlan100).

ISIS-1-SNP: CSNP Range from 0000.0000.0000.00-00 to ffff.ffff.ffff.ff-ff.

ISIS-1-SNP: Rxed L2 CSNP From 0000.0000.0001 (Vlan100).

//Router B received CSNP packets within a maximum range of 0000.0000.0000.00-00 to ffff.ffff.ffff.ff-ff.

ISIS-1-SNP: Sending L1 CSNP on Vlan100.

ISIS-1-SNP: Sending L2 CSNP on Vlan100.

// Router B sent CSNP packets.

#VLAN-interface 100 on Router A is connected to VLAN-interface 100 on Router B. Create an IS-IS process on Router A and Router B respectively, enable IS-IS on the interfaces, and configure them. On Route A, enable local update debugging; enable IS-IS and then disable it on VLAN-interface 100.

<Sysname>debugging isis self-originate-update

 

 

[Sysname-Vlan-interface100]undo isis enable

 

 

ISIS-1-UPDT: Deleting from

the LSP Neighbour

option, TLV 2

ISIS-1-UPDT: Circuit Down

Vlan100

 

 

ISIS-1-UPDT: Deleting Address 100.1.1.0 from

L1

LSPs, TLV: 128

ISIS-1-UPDT: Deleting Address 100.1.1.0 from

L2

LSPs, TLV: 128

//The Neighbor TLV was deleted from the local LSPs, and the reachable TLV with an IP prefix of 100.1.1.0/24 was deleted from the local L1 and L2 LSPs.

[Sysname-Vlan-interface100] isis enable ISIS-1-UPDT: Circuit Up Vlan100

ISIS-1-UPDT: Adding Address 100.1.1.0 into L1 LSPs, TLV: 128

ISIS-1-UPDT: Adding Address 100.1.1.0 into L2 LSPs, TLV: 128

ISIS-1-UPDT: Adding in the LSP Neighbour option, TLV 2

//The neighbor TLV was added to the local LSPs, and the reachable TLV with an IP prefix of 100.1.1.0/24 was added to L1 and L2 LSPs.

#Router A and Router B are interconnected. Enable IS-IS on Router A and Router B respectively. Enable route calculation debugging on Router A.

<Sysname>debugging isis spf-event

// SPF calculation started, with a system level of L12 and SPF run level of 3.

ISIS-1-SPF-TRIG: Starting SPF, Scheduled Event : IS_SPFTRIG_NEWLSP. Run Level:3

ISIS-1-SPF-EVE: Running Level -1 SPF Run

ISIS-1-SPF-EVE: Adding Self To PATHS

ISIS-1-SPF-EVE: Adding To PATHS: 191.01.01.00/ 255.255.255.00,Cost 10, Number of next hops 1, Preference 0

ISIS-1-SPF-EVE: Loading Level-1 Adjacencies

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Image 1104
3Com MSR 30, MSR 50 manual IP address took effect on the IS-IS interface, Router B sent Csnp packets