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Robert_Grignon_'s avatar
Robert_Grignon_
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Feb 27, 2013

LTM Placement in a network

We are purchasing 2 1600 LTM's and are having some discussion about where to physically place them. We have:

 

(Active / Failover) ASA Firewall

 

2 Nexus 5K (w Layer 3)

 

 

I'm looking to see where people are placing their F5's... for initial deployment.

 

 

I appreciate your input.

 

2 Replies

  •  

    Well the most common and ideal design should be:

     

     

    Logical flow should be:

     

    Firewall >> LTM >> Switches >> Server farm

     

     

    Physical Placement

     

    Firewall connected to switch

     

    LTM connected to same switch (with default GW as firewall)

     

    Remaining ports on the switches will carry your Server VLANs (and additional switches is required)

     

     

    Your servers may or may not have LTMs as a default gw depends on the requirement (if not you can always use SNAT automap)

     

     

     

    -Ajmal

     

  • Scrap that, just reread Ajmal's post and he had it covered.

     

     

    So just worth noting that your servers don't have to be that 'local' although that is the ideal (and they could even be behind another firewall).