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ISIS/3/REA_MAX_SEQ_NUM
Message
ISIS/3/REA_MAX_SEQ_NUM: The LSP sequence number almost reaches the maximum value. (isisSysInstance=[USHORT], isisSysLevelIndex=[USHORT], isisPduLspId=[STRING])
Parameters
| Parameter Name | Parameter Meaning |
|---|---|
isisSysInstance |
ID of an IS-IS process |
isisSysLevelIndex |
IS-IS level |
isisPduLspId |
LSP ID |
Possible Causes
Cause 1: The sequence numbers increase to the maximum value as expected.
Cause 2: An attacker simulated a locally generated LSP, set its sequence number to the maximum value, and sent the LSP to the local device.
Cause 3: Another device on the network had the same IS-IS System ID as the local one.
Procedure
- Run the display
isis lsdb command to check the sequence numbers of
locally generated LSPs.
- If the sequence numbers increase as expected, no action is required.
- If the sequence numbers increase too fast, go to Step 2.
- Run the timer
lsp-refresh command in the IS-IS view to increase
the LSP update interval and then run the display isis lsdb command to check the sequence numbers of locally generated LSPs.
- If the sequence numbers increase as expected, go to Step 5.
- If the sequence numbers increase too fast, go to Step 3.
- Check whether there is another device on the network with
the local IS-IS System ID.
- If such a device exists, change its system ID.
- If no such a device exists, go to Step 4.
- Collect alarm information and configuration information, and then contact technical support personnel.
- End.