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eSight V300R009C00 Operation Guide 10

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After a User Changes the Connection Interface on an S-series Switch, the Link Status Is Displayed as Faulty (in Red) on the eSight Network Topology

After a User Changes the Connection Interface on an S-series Switch, the Link Status Is Displayed as Faulty (in Red) on the eSight Network Topology

Symptom

After a user changes the connection interface on an S-series switch, the link status is displayed as faulty (in red) on the eSight network topology. After the device data is synchronized to eSight, the link status is still displayed as faulty (in red). Run the display lldp neighbor brief command on the device to check the neighboring interface status. The command output shows the interface before the change, but the interface status is Down.

Possible Causes

After the connection interface on the switch is changed, the LLDP neighbor connection status is not updated in a timely manner and the link is displayed as a faulty link on eSight.

Procedure

  1. Run the undo lldp enable command on the switch to disable LLDP.

    <Quidway> system-view 
    [Quidway] undo lldp enable 
    Warning: This command will delete the configurations of LLDP on all the ports.Continue?[Y/N]:y 
    Info: Global LLDP is disabled successfully.

  2. Run the lldp enable command on the switch to enable LLDP again.

    <Quidway> system-view 
    [Quidway] lldp enable 
    Info: Global LLDP is enabled successfully.     

  3. Delete the red faulty link from the eSight topology and configure eSight to discover links again.
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Updated: 2019-08-10

Document ID: EDOC1100011877

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