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Neil_66348's avatar
Neil_66348
Icon for Nimbostratus rankNimbostratus
Apr 12, 2010

F5 GTM - LTM communication requirements

Hi Guys ,

 

 

Quite new to F5 GTM.

 

 

We're looking at a design to enable us to operate in an Active / Active fashion in our geographic DC's , we need to utilise persistance as the solutions from the likes of dyn etc don't provide that.

 

 

Currently with have 2 x 6400's LTM deployed in our primary facility in a cluster. 1 x 6400 deployed in our secondary.

 

 

Some additional 3900's exist at a newer facility and we're wanting to utilise them to provide the GTM.

 

 

We're looking to get trial licences shortly of GTM once out LTM system in online.

 

 

My concern is:

 

The integration with LTM from the newer GTM box's. These are in a completly different network , only communication would be over the WAN. What integration , if any is required ?

 

From reading around it appears to be iQuery , which i'm presuming is traffic states on the LTM system. Apart from that is any other communication required ?

 

 

Thanks

 

Neil

 

 

 

config
design
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Apr 12, 2010
    Hi Neil,

     

     

    I think you'll need ports 22, 443 and 4353 between all GTM's and each LTM. This is described to some extent in SOL8195:

     

     

    SOL8195: Overview of the BIG-IP GTM big3d_install, bigip_add, and gtm_add utilities

     

    https://support.f5.com/kb/en-us/solutions/public/8000/100/sol8195.html

     

     

    Aaron
  • Neil_66348's avatar
    Neil_66348
    Icon for Nimbostratus rankNimbostratus
    Apr 14, 2010
    Hi hoolio ,

     

     

    Thats great.

     

     

    Don't suppose you know if we have clustered the 3900's ,with each have access to the same 2 x WAN pipes , can we have the primary acting as 2 nameservers for the same zone.

     

     

    Reason being , is if we loose the primary WAN pipe we don't want to switch to a standby facility as we have large enough backhaul to pull our WAN accross from the standby facility to the primary facilities F5.

     

     

    So , NS1.company.com - 1.1.1.1 and NS2.company.com - 2.2.2.2 are actually operating of the same F5 ?

     

     

    I suppose another stance , is it best to cluster or to use sync groups , but if the LTM part of it is clustered can the GTM be operating in a standalone ?

     

     

    many thanks

     

    Neil

     

     

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Apr 14, 2010
    I'll leave that to the GTM architecture gurus around here...

     

     

    Aaron