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f5beginner's avatar
f5beginner
Icon for Cirrostratus rankCirrostratus
Jun 23, 2019

Exceed bandwidth utilization on standby device

Hello All, I have two virtual F5 in HA, one of them Active and second one is in standby mode. From my monitoring I received ping delay, which is around 400ms, so I checked logs on F5.   On acti...
  • Dario_Garrido's avatar
    Dario_Garrido
    Jun 25, 2019

    Yes, the problem you are facing is because of this UDP 8116 traffic. There are 360 packets (of 500) related to this flow.

    # cat output.txt | grep 8116 | wc -l
360

    This is not a specific problem of F5, so you should check your enviroment to figure out what the source of traffic is and how to stop it.

    BTW, I would appreciate if you mark my answer as 'the best' or give me some upvote :-).

    KR,

    Dario.

f5beginner's avatar
f5beginner
Icon for Cirrostratus rankCirrostratus
Jun 24, 2019

Hi, Dario Garrido,

 

Mirroring is setted up.

I have checked recomendations and I have one vlan which is used for ConfigSync, Failover Network and Mirroring together. Physical interface is shared for all (inc. data). Do you thing this configuration can cause error logs and ping delays ?

 

I can make a test, that I turn off mirroring, is there any recomendation before turning of mirroring ?

 

Thank you

  • Dario_Garrido's avatar
    Dario_Garrido
    Icon for MVP rankMVP
    Jun 24, 2019

    Yes, your license establish a throughput limit in your box, so if you cross it you are going to face errors and latency.

     

    You should reduce your throughput consumption, disabling mirroring is a good point.

     

    KR,

    Dario.