Forum Discussion

SSHSSH_97332's avatar
SSHSSH_97332
Icon for Nimbostratus rankNimbostratus
Feb 20, 2012

GTM LB Methods

CPU mode:

 

The CPU load balancing mode selects the virtual server that currently has

 

the most CPU processing time available to handle name resolution requests.

 

 

 

Question: How doesGTM knows about CPU of VS ?

 

 

 

Kilobyte/Second mode

 

 

 

Question: How doesGTM knows about Kilobyte/Second of VS ?

 

 

 

 

 

config
design

1 Reply

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Feb 20, 2012
    In past versions I think it was global BIG-IP CPU for the unit the VS was on. Since we added per-LTM VS CPU metrics in 11.1 it could potentially be per VS for the GTM metric now. You could open a case with F5 Support to confirm/correct this. If it's not per-LTM VS CPU metrics in 11.1, you could ask to have a request for enhancement opened. If you do, ask Support to reference BZ216992 for some background info.

     

     

    The Kb/sec mode could be per VS as that's been available for a while.

     

     

    The communication between GTM and LTM is performed over iQuery.

     

     

    Aaron