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Forum Discussion

Rash_75385's avatar
Rash_75385
Icon for Nimbostratus rankNimbostratus
Feb 20, 2010

LTM Tracking NextHop

Hello,     I am looking at the possibility of using a pair of LTMs for a high availability solution. I want to set up a pair of LTM's in high availability mode. What I want to know is c...
config
design
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Feb 21, 2010
Hi Rash,

 

 

Yes, you can set up network (Performance Layer4 / FastL4) virtual server or a default route which points a pool of gateways. On the gateway pool, you can use a monitor which marks the pool members up or down based on the result of an ICMP check of a routed host. This is described in SOL7015:

 

 

SOL7215: Configuring multiple default routes on the BIG-IP system

 

https://support.f5.com/kb/en-us/solutions/public/7000/200/sol7215.html

 

 

and

 

 

SOL8971: Creating transparent ICMP health monitors

 

https://support.f5.com/kb/en-us/solutions/public/8000/900/sol8971.html

 

 

One advantage of using the VIP is that you can configure destination address persistence to ensure multiple requests to the same destination are sent out the same link. Or you can use priority groups to ensure one gateway is always unless it is marked down.

 

 

Aaron