The new docs.trellix.com features a modernized UI and AI-powered conversational search. Content is currently available in English, with additional languages launching in early November 2026. We hope you enjoy the updated experience.

Network ports flap consistently due to routing protocol interval

Prev Next

If the two-port link is enabled by default and the two-port link timeout has a value lower than the routing protocol hello interval in the network devices, the network ports flap consistently.

Note

To view this issue, login to the web interface and select the Log file tab. Under Log file view, click >|.

Perform the following steps in the CLI to troubleshoot the issue:

  1. Change the 2pl timeout to a higher value than routing protocol hello interval.

    set_2pl_link_timeout <4-25>sec

  2. If problem persists after changing the 2pl timeout to the highest value (25 seconds), turn off 2pl.

    set_2pl off

    Note

    Setting the two-port link off disables the LFD feature on the network side. That is, if one side of the network goes down, the peer side stays up which results in routing issue and network traffic outages.