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waterfall_10467's avatar
waterfall_10467
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Jan 24, 2013

delay-based and loss-based component

 

Hello Team,

 

we use tcp-wan-optimezed profile for using web app on branches.However,we have observed that f5 cannot occasionally respond to client. if I give an example;f5 cannot respond to the tcp retransmission packets which sent client a few times and because of that connection closed.Ok may be there is not the bytes on the f5 which sent client and because of that it may behaive like that.However,i wonder if scalable works for the issue. I mean when we change the Congestion Control as scalable. Doyou think is changed behaivor of the traffic ? Also Are we able to specify the Congestion Control according to bandwith examp. with irule?

 

 

thank you in advance.

 

 

management
monitoring

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  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 24, 2013
    Scalable is somewhat less aggressive than High Speed so it may help. Can you describe the issue in a bit more detail please. Why do you think the F5 is unable to respond to packets? What kind of network conditions do you face etc. etc.?
  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 24, 2013
    Also, if you have a very unstable or rapidly changing network/WAN you might also want to disable the Congestion Metrics Cache.
  • waterfall_10467's avatar
    waterfall_10467
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    Jan 24, 2013

    the network is stable so no problem on that. also since I have no traffic capruring like tcpdump or sniffer sorry ı cannot explain the issue in more detail right now.

     

     

    ı still wonder if we are able to write an irule with that according to bandwith is that possible?

     

     

    thanks

     

  • waterfall_10467's avatar
    waterfall_10467
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    Jan 24, 2013

    if it is possible we wish to restrict on client side due to it is being wan-optimized also Are we able to restrict for bandwith management via ldap ? ok it is different thing but I just want to learn it

     

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 24, 2013
    No idea about the LDAP bit I'm afraid. You can restrict client-side bandwidth using Rate Shaping via a Rate Class. You can apply Rate Classes via an iRule but not Congestion Control.
  • waterfall_10467's avatar
    waterfall_10467
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    Jan 24, 2013

    well thank you for your prompt returns . I think we can the processing throught PEM module but ıt seems to me that the module just supports radius listener with user based bandwith management. Doesn't it? if so Do you know the other way to make that?

     

     

    thanks

     

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 24, 2013

    Ah apologies, I thought we were talking about LTM. Unfortunately I've no experience around PEM. Hopefully someone else can help you with that. Anyone?

     

  • waterfall_10467's avatar
    waterfall_10467
    Icon for Altostratus rankAltostratus
    Jan 24, 2013

    no no you're right we're just talking about ltm no problem the pem was just additional thing ? but as far as i understand we cannot manage the Congestion Control according to bandwith. Can we? i think by seleting its types ,we need to test.Rigt?