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Allwyn_Mascaren's avatar
Allwyn_Mascaren
Icon for Cirrus rankCirrus
Apr 09, 2019

Slow with f5 but ok otherwise

We keep getting these issues with customers complaining about some app or website always slow from f5 but works fine directly.

 

And often they are correct it is indeed slow through f5!

 

Where do you start troubleshooting these and what to look for?

 

I don’t have any particular case in mind but just looking for a general checklist for troubleshooting these.

 

application delivery
big-ip ltm
LTM

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  • youssef1's avatar
    youssef1
    Icon for Cumulonimbus rankCumulonimbus
    Apr 09, 2019

    Hi,

    First of you can check your configuration:

    • If you use an irule that consumes too much resource (stream profile , rewriting, consomative operation ...).
    • Use an adaptive TCP profil (check that naggle alogritm is disabled).
    • Check errors (LTM).

    Then if you can activate Application Visibility and Reporting (AVR). This module will allow you to investigat server latency issues...

    Can you give us an output of your VS configuration:

    list /ltm virtual vs-name all-properties

    You have this latency problem only on one VS or on multiple vs/app...

    Regards