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Analyzing IS-IS Link-State PDUs in Detail
To analyze IS-IS link-state PDUs in detail, follow these steps:
- Configure IS-IS open messages.[edit protocols isis traceoptions]user@host# set flag lsp detail
- Verify the configuration.user@host# show
For example:
[edit protocols isis traceoptions] user@host# show file isislog size 5m world-readable; flag error; flag lsp 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 isislog Nov 28 20:17:24 Received L2 LSP abc-core-01.00-00, interface so-1/1/0.0 Nov 28 20:17:24 from abc-core-01 Nov 28 20:17:24 sequence 0x1c4f9, checksum 0x9fea, lifetime 1199 Nov 28 20:17:24 max area 0, length 426 Nov 28 20:17:24 no partition repair, no database overload Nov 28 20:17:24 IS type 3, metric type 0 Nov 28 20:17:24 area address 99.0908 (1) Nov 28 20:17:24 speaks CLNP Nov 28 20:17:24 speaks IP Nov 28 20:17:24 dyn hostname abc-core-01 Nov 28 20:17:24 IP address 10.10.134.11 Nov 28 20:17:24 IP prefix: 10.10.10.0/30 metric 1 up Nov 28 20:17:24 IP prefix: 10.10.10.4/30 metric 5 up Nov 28 20:17:24 IP prefix: 10.10.10.56/30 metric 5 up Nov 28 20:17:24 IP prefix: 10.10.10.52/30 metric 1 up Nov 28 20:17:24 IP prefix: 10.10.10.64/30 metric 5 up Nov 28 20:17:24 IP prefix: 10.10.10.20/30 metric 5 up Nov 28 20:17:24 IP prefix: 10.10.10.28/30 metric 5 up Nov 28 20:17:24 IP prefix: 10.10.10.44/30 metric 5 up Nov 28 20:17:24 IP prefix 10.10.10.0 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 1 Nov 28 20:17:24 IP prefix 10.10.10.4 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IP prefix 10.10.10.56 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IP prefix 10.10.10.52 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 1 Nov 28 20:17:24 IP prefix 10.10.10.64 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IP prefix 10.10.10.20 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IP prefix 10.10.10.28 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IP prefix 10.10.10.44 255.255.255.252 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IS neighbors: Nov 28 20:17:24 IS neighbor abc-core-02.00 Nov 28 20:17:24 internal, metrics: default 1 [...Output truncated...] Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IS neighbor abc-brdr-01.00 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IS neighbor abc-core-02.00, metric: 1 Nov 28 20:17:24 IS neighbor abc-esr-02.00, metric: 5 Nov 28 20:17:24 IS neighbor abc-edge-03.00, metric: 5 Nov 28 20:17:24 IS neighbor abc-edge-01.00, metric: 5 Nov 28 20:17:24 IS neighbor abc-edge-02.00, metric: 5 Nov 28 20:17:24 IS neighbor abc-brdr-01.00, metric: 5 Nov 28 20:17:24 IP prefix: 10.10.134.11/32 metric 0 up Nov 28 20:17:24 IP prefix: 10.11.0.0/16 metric 5 up Nov 28 20:17:24 IP prefix: 10.211.0.0/16 metric 0 up Nov 28 20:17:24 IP prefix 10.10.134.11 255.255.255.255 Nov 28 20:17:24 internal, metrics: default 0 Nov 28 20:17:24 IP prefix 10.11.0.0 255.255.0.0 Nov 28 20:17:24 internal, metrics: default 5 Nov 28 20:17:24 IP prefix 10.211.0.0 255.255.0.0 Nov 28 20:17:24 internal, metrics: default 0 Nov 28 20:17:24 Updating LSP Nov 28 20:17:24 Updating L2 LSP abc-core-01.00-00 in TED Nov 28 20:17:24 Analyzing subtlv's for abc-core-02.00 Nov 28 20:17:24 Analysis complete Nov 28 20:17:24 Analyzing subtlv's for abc-esr-02.00 Nov 28 20:17:24 Analysis complete Nov 28 20:17:24 Analyzing subtlv's for abc-edge-03.00 Nov 28 20:17:24 Analysis complete Nov 28 20:17:24 Analyzing subtlv's for abc-edge-01.00 Nov 28 20:17:24 Analysis complete Nov 28 20:17:24 Analyzing subtlv's for abc-edge-02.00 Nov 28 20:17:24 Analysis complete Nov 28 20:17:24 Analyzing subtlv's for abc-brdr-01.00 Nov 28 20:17:24 Analysis complete Nov 28 20:17:24 Scheduling L2 LSP abc-core-01.00-00 sequence 0x1c4f9 on interface so-1/1/1.0
