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Mondana_214537's avatar
Mondana_214537
Icon for Nimbostratus rankNimbostratus
Aug 20, 2015

How to see LTM statistics: Virtual Servers maximum connections

Hi,

 

From the GUI, I can select Statistics->Module statistics->Local Traffic, and then select to see all of the connections (current, max, total) statistics output. The problem is that it does not sort it. (using ver 11.5.1). How can I pull the same statistics from CLI?

 

I have been searching on the web, and found the followings:

 

  1. https://devcentral.f5.com/codeshare/sort-objects-by-busy-ness => I used the script but could not save it due to some errors. I am a newbie, don't know what are those errors for.

     

  2. tmsh show sys connection cs-server-addr VIP cs-server-port PORT | egrep -v 'T|S' | cut -d: -f 1 | uniq -c => the problem is I want to list all the VIPs/VSs and sort them. I dont want to check them one by one.

     

  3. Is this code doing what I need? using bigtop:

     

    bigtop -conn -vips 30 -vname -scroll -vname

     

I want to choose the top VIPs in terms of max connections.

 

Thank you!

 

application delivery
LTM
TMSH
virtualization

5 Replies

  • arpydays's avatar
    arpydays
    Icon for Nimbostratus rankNimbostratus
    Aug 20, 2015

    Try this for current max client-side connections,

    first one is max conns per VS, second one is max conns per VIP.

    cheers

    tmsh show sys connection   | egrep -v 'T|S'  | awk '{print $2}' | sort -n | uniq -c | sort -n

tmsh show sys connection   | egrep -v 'T|S'  | awk '{print $2}' | cut -d: -f 1 |sort -n | uniq -c | sort -n
  • Mondana_214537's avatar
    Mondana_214537
    Icon for Nimbostratus rankNimbostratus
    Aug 21, 2015

    Thank you so much for your reply.

    tmsh reply is that egrep and awk are not supported. and only grep is supported: Syntax Error: "awk", grep is currently the only filter that is supported !! This is while I can use both egrep and awk in bash mode!!

    Besides that, what is the difference between the following two commands? Are they doing the same thing?

    $[bash] bigtop -conn -vips 50 -vname -scroll -vname | egrep '_TCP_80|_TCP_443' | awk '{print "VIP: "$1" Connections:"$4}'

$[tmsh] show sys connection   | egrep -v 'T|S'  | awk '{print $2}' | cut -d: -f 1 |sort -n | uniq -c | sort -n

    I want to know is bigtop producing the same report as 'tmsh show sys connection'?

  • arpydays's avatar
    arpydays
    Icon for Nimbostratus rankNimbostratus
    Aug 22, 2015

    you need to run this from the bash prompt NOT within TMSH,

     

    what s/w version are you on?

     

    cheers

     

  • Mondana_214537's avatar
    Mondana_214537
    Icon for Nimbostratus rankNimbostratus
    Aug 24, 2015

    Thanks! It works from bash mode! I am on Version 11.5.1

     

    I am still not clear on what is the difference between "bigtop -conn" and "tmsh show sys connection? Do you know of any documents that can explain that?

     

    Thank you.

     

  • arpydays's avatar
    arpydays
    Icon for Nimbostratus rankNimbostratus
    Aug 24, 2015

    bigtop is part of the legacy shell that was used before v11, I'm not even sure of if it's full supported in v11 - when tried on a system using APM I don't see any of the tunnelled network access connections whereas in tmsh show sys con I do. Traffic management shell, TMSH, is the new shell for v11. You can read more about bigtop below and there is a tmsh reference guide in the askF5 documentation section.

     

    cheers

     

    https://support.f5.com/kb/en-us/solutions/public/7000/300/sol7318.html?sr=47795979