SRX

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SRX LACP inconsistent timers

  • 1.  SRX LACP inconsistent timers

    Posted 08-04-2021 08:59
    Hello,

    between a pair of SRX routers in chassis cluster and a pair of EX switches in virtual chassis there is LACP  link aggregation with fast we could see that one of the routers in chassis cluster is sending LACP packets twice faster (or two packets at a time).

    Configuration on AE and RETH interface uses active LACP mode with periodic fast sending of the packets (1 per second).

    Result is below, the same statistics are seen on all devices.

    Anyone has experienced similar issue?

    You can see that XE-7/0/17 has twice as many TX's as RX's. The same can be seen on XE-1/2/0.
    Other router in the chassis has the similar amount of TX's and RX's, the same can be seen po port XE-0/2/0.

    Aggregated interface: reth1
    LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
    xe-0/0/17 7817 7845 0 0
    xe-7/0/17 7818 13055 0 0

    Aggregated interface: ae0
    LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
    xe-1/2/0 4477798 2913010 0 0

    Aggregated interface: ae1
    LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
    xe-0/2/0 2922868 2912932 0 0

    Thank you.

    ------------------------------
    GREGOR BIZJAK
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