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Log Reference

AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R007

This document supports all the logs of device, including the parameters, meaning, possible causes and solution.
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ISIS/3/REA_MAX_SEQ_NUM

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])

Description

The LSP sequence number reached the maximum value.

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

  1. 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.

  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.

  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.

  4. Collect alarm information and configuration information, and then contact technical support personnel.
  5. End.
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Updated: 2019-05-29

Document ID: EDOC1000097209

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