Supported Platforms
Displaying Detailed IS-IS Protocol Information
Action
To trace IS-IS messages in detail, follow these steps:
- Configure the flag to display detailed IS-IS protocol
messages.[edit protocols isis traceoptions] user@host# set flag hello detail
- Verify the configuration.user@host# show
For example:
[edit protocols isis traceoptions]user@host# show file isislog size 10k files 10;flag hello detail; - Commit the configuration.user@host# commit
- View the contents of the file containing the detailed
messages.user@host# run show log filename
For example:
user@host# run show log isislogNov 29 23:17:50 trace_on: Tracing to "/var/log/isislog" started Nov 29 23:17:50 Sending PTP IIH on so-1/1/1.0 Nov 29 23:17:53 Sending PTP IIH on so-1/1/0.0 Nov 29 23:17:54 Received PTP IIH, source id abc-core-01 on so-1/1/0.0 Nov 29 23:17:54 from interface index 11 Nov 29 23:17:54 max area 0, circuit type l2, packet length 4469 Nov 29 23:17:54 hold time 30, circuit id 6 Nov 29 23:17:54 neighbor state up Nov 29 23:17:54 speaks IP Nov 29 23:17:54 area address 99.0008 (1) Nov 29 23:17:54 IP address 10.10.10.29 Nov 29 23:17:54 4396 bytes of total padding Nov 29 23:17:54 updating neighbor abc-core-01 Nov 29 23:17:55 Received PTP IIH, source id abc-core-02 on so-1/1/1.0 Nov 29 23:17:55 from interface index 12 Nov 29 23:17:55 max area 0, circuit type l2, packet length 4469 Nov 29 23:17:55 hold time 30, circuit id 6 Nov 29 23:17:55 neighbor state up Nov 29 23:17:55 speaks IP Nov 29 23:17:55 area address 99.0000 (1) Nov 29 23:17:55 IP address 10.10.10.33 Nov 29 23:17:55 4396 bytes of total padding Nov 29 23:17:55 updating neighbor abc-core-02
Meaning
Table 1 lists tracing flags that can be configured specific to IS-IS and presents example output for some of the flags.
Table 1: IS-IS Protocol Tracing Flags
Tracing Flags | Description | Example Output |
|---|---|---|
csn | Complete sequence number PDU (CSNP) | Nov 28 20:02:48 Sending L2 CSN on interface so-1/1/0.0Nov 28 20:02:48 Sending L2 CSN on interface so-1/1/1.0 With the detail option. Nov 28 20:06:08 Sending L2 CSN on interface so-1/1/1.0Nov 28 20:06:08 LSP abc-core-01.00-00 lifetime 1146Nov 28 20:06:08 sequence 0x1c4f8 checksum 0xa1e9Nov 28 20:06:08 LSP abc-core-02.00-00 lifetime 411Nov 28 20:06:08 sequence 0x7435 checksum 0x5424Nov 28 20:06:08 LSP abc-brdr-01.00-00 lifetime 465Nov 28 20:06:08 sequence 0xf73 checksum 0xab10Nov 28 20:06:08 LSP abc-edge-01.00-00 lifetime 1089Nov 28 20:06:08 sequence 0x1616 checksum 0xdb29Nov 28 20:06:08 LSP abc-edge-02.00-00 lifetime 1103Nov 28 20:06:08 sequence 0x45cc checksum 0x6883 |
hello | Hello packet | Nov 28 20:13:50 Sending PTP IIH on so-1/1/1.0Nov 28 20:13:50 Received PTP IIH, source id abc-core-01 on so-1/1/0.0Nov 28 20:13:53 Received PTP IIH, source id abc-core-02 on so-1/1/1.0Nov 28 20:13:57 Sending PTP IIH on so-1/1/0.0Nov 28 20:13:58 Received PTP IIH, source id abc-core-01 on so-1/1/0.0Nov 28 20:13:59 Sending PTP IIH on so-1/1/1.0 |
lsp | Link-state PDUs (LSPs) | Nov 28 20:15:46 Received L2 LSP abc-edge-01.00-00, interface so-1/1/0.0Nov 28 20:15:46 from abc-core-01Nov 28 20:15:46 sequence 0x1617, checksum 0xd92a, lifetime 1197Nov 28 20:15:46 Updating L2 LSP abc-edge-01.00-00 in TEDNov 28 20:15:47 Received L2 LSP abc-edge-01.00-00, interface so-1/1/1.0Nov 28 20:15:47 from abc-core-02Nov 28 20:15:47 sequence 0x1617, checksum 0xd92a, lifetime 1197 |
lsp-generation | Link-state PDU generation packets | Nov 28 20:21:24 Regenerating L1 LSP abc-edge-03.00-00, old sequence 0x682Nov 28 20:21:27 Rebuilding L1, fragment abc-edge-03.00-00Nov 28 20:21:27 Rebuilt L1 fragment abc-edge-03.00-00, size 59Nov 28 20:31:52 Regenerating L2 LSP abc-edge-03.00-00, old sequence 0x689Nov 28 20:31:54 Rebuilding L2, fragment abc-edge-03.00-00Nov 28 20:31:54 Rebuilt L2 fragment abc-edge-03.00-00, size 256Nov 28 20:34:05 Regenerating L1 LSP abc-edge-03.00-00, old sequence 0x683Nov 28 20:34:08 Rebuilding L1, fragment abc-edge-03.00-00Nov 28 20:34:08 Rebuilt L1 fragment abc-edge-03.00-00, size 59 |
packets | All IS-IS protocol packets | Not available. |
psn | Partial sequence number PDU (PSNP) packets | Nov 28 20:40:39 Received L2 PSN, source abc-core-01, interface so-1/1/0.0Nov 28 20:40:39 Received L2 PSN, source abc-core-02, interface so-1/1/1.0Nov 28 20:41:36 Sending L2 PSN on interface so-1/1/1.0Nov 28 20:41:36 Sending L2 PSN on interface so-1/1/0.0Nov 28 20:42:35 Received L2 PSN, source abc-core-02, interface so-1/1/1.0Nov 28 20:42:35 LSP abc-edge-03.00-00 lifetime 1196Nov 28 20:42:35 sequence 0x68c checksum 0x746dNov 28 20:42:35 Received L2 PSN, source abc-core-01, interface so-1/1/0.0Nov 28 20:42:35 LSP abc-edge-03.00-00 lifetime 1196Nov 28 20:42:35 sequence 0x68c checksum 0x746dNov 28 20:42:49 Sending L2 PSN on interface so-1/1/1.0Nov 28 20:42:49 LSP abc-core-01.00-00 lifetime 1197Nov 28 20:42:49 sequence 0x1c4fb checksum 0x9becNov 28 20:42:49 Sending L2 PSN on interface so-1/1/0.0Nov 28 20:42:49 LSP abc-core-01.00-00 lifetime 1197Nov 28 20:42:49 sequence 0x1c4fb checksum 0x9bec |
spf | Shortest-path-first (SPF) calculations | Nov 28 20:44:01 Scheduling SPF for L1: ReconfigNov 28 20:44:01 Scheduling multicast SPF for L1: ReconfigNov 28 20:44:01 Scheduling SPF for L2: ReconfigNov 28 20:44:01 Scheduling multicast SPF for L2: ReconfigNov 28 20:44:02 Running L1 SPFNov 28 20:44:02 L1 SPF initialization complete: 0.000099s cumulative timeNov 28 20:44:02 L1 SPF primary processing complete: 0.000303s cumulative timeNov 28 20:44:02 L1 SPF result postprocessing complete: 0.000497s cumulative timeNov 28 20:44:02 L1 SPF RIB postprocessing complete: 0.000626s cumulative timeNov 28 20:44:02 L1 SPF routing table postprocessing complete: 0.000736s cumulative time |
