Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    LAGG active mode with Cisco 2960

    Scheduled Pinned Locked Moved L2/Switching/VLANs
    3 Posts 2 Posters 251 Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • L
      limex
      last edited by limex

      Hi!

      I am trying to configure LAGG on my pfSense, but something is not working as intended..

      pfSense version 2.7.2. I am in the know about the LAGG change in version 2.6, as mentioned here: https://forums.lawrencesystems.com/t/upgraded-to-pfsense-2-6-now-i-get-interface-stopped-distributing-possible-flapping/13011/6

      My switch is a Cisco 2960 and has LACP "active" mode configured for 1 interface (Gi17).

      My pfSense has a LAGG group with LACP and 1 interface (re0).

      Both pfSense and my switch seems to show some signs of LACP working, because if I turn off LACP on pfSense (set it to 'load balancing' instead, for example), my switch says "%EC-5L3DONTBNDL2: Gi1/0/17 suspended: LACP currently no enabled on the remote port". If I turn LACP on pfSense back on - the message disappears.

      Same for my pfSense - if I set the LACP mode on my switch to "passive", pfSense shows this message "re0: Interface stopped DISTRIBUTING, possible flapping", as in the mentioned forum thread. Same again, if I set it back to "active" it's not flapping anymore.

      The problem comes, when I try to set one of my VLANs to go though this LAGG, instead of a single trunk port - it's not getting an IP.

      So my switch "port 19" is a regular trunk that goes to "re1" on pfSense. My switch "port 17" is configured with LACP and goes to "re0" physical interface on pfSense, which should be in a LAGG with LACP.

      However, when I set one of my VLANs to use this LAGG - DHCP is not assigning an IP to my laptop. If I change it back to the regular trunk - it works fine.

      What am I doing wrong?

      Thanks!

      L C 2 Replies Last reply Reply Quote 0
      • L
        limex @limex
        last edited by

        @limex by the way, other LAGG methods, including Load Balancing and Round Robin also do not work, not just LACP.

        1 Reply Last reply Reply Quote 0
        • C
          coxhaus @limex
          last edited by

          @limex
          I initial thought is Lagg and LACP are different. Lagg is real basic and should work fine. Lagg just expands bandwidth not speed.

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.