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Setting the interval for sending CDP advertisements

CDP advertisements are sent to CDP neighbors at periodic intervals. You can increase or decrease the interval for sending CDP advertisements depending on network traffic and changes in the network topology.

About this task

  • The value of the cdpd.interval option should be set to the same value on both nodes of an HA pair.

  • The default interval is 60 seconds, but you can enter a value from 5 seconds to 900 seconds.

  1. Display the current CDP advertisement time interval for a node, or for all nodes in a cluster:
    To view the interval for...Enter...
    A noderun -node node_name options cdpd.interval
    All nodes in a clusteroptions cdpd.interval
  2. Configure the interval for sending CDP advertisements for all ports of a node, or for all ports of all nodes in a cluster:
    To set the interval for...Enter...
    A noderun -node node_name options cdpd.interval interval
    All nodes in a clusteroptions cdpd.interval interval