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Log Reference

CloudEngine 8800, 7800, 6800, and 5800 V200R005C00

This document provides the explanations, causes, and recommended actions of logs on the product.

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ISIS/2/ISIS_MANUAL_ADDRESS_DROPS: Some area addresses were discarded because the number of area addresses exceeded three. (isisSysInstance=[isisSysInstance], isisSysLevelIndex=[isisSysLevelIndex], isisManAreaAddr=[isisManAreaAddr], isisManAreaAddrExistState=[isisManAreaAddrExistState])


There were more than three area addresses and the local area address was discarded.


Parameter Name Parameter Meaning


ID of an IS-IS process


IS-IS level


IS-IS area address


State of an area address

Possible Causes

On a Level-1-2 , IS-IS leaked Level-1 area addresses to the Level-2 area, increasing the area addresses of the Level-2 area to more than 3. In this case, IS-IS uses the top three smallest area addresses as the Level-2 area addresses, causing address loss in the local Level-2 area.


  1. Run the display isis lsdb level-1 verbose command to view details about the Level-1 LSDB. Based on the information about the AREA ADDR field in the LSP with the fragment number being 0, you can determine whether the number of Level-1 area addresses exceeds 3.

    • If so, go to Step 2.
    • If not, go to Step 3.

  2. Run the undo network-entity command (exercise caution when running this command) in the IS-IS view to delete the IS-IS area addresses, and then run the network-entity command in the IS-IS view to configure new IS-IS area addresses to ensure that there are not more than three different IS-IS area addresses in the Level-1 area that is connected to the Level-1-2 router. Run the display isis lsdb command to check whether the Level-1 area addresses are the same as the Level-2 area addresses in the LSPs with the fragment number being 0 on the local .

    • If so, go to Step 4.
    • If not, go to Step 3.

  3. Contact technical support personnel technical support personnel.
  4. End.
Updated: 2019-04-20

Document ID: EDOC1100039602

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