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Prasad21l's avatar
Prasad21l
Icon for Nimbostratus rankNimbostratus
Dec 13, 2024

BIG IP Link failover happen but i try to link fallback

I have used LTM-DNS with AFM on BIG IP. For Internet outgoing I used wildcard VS link failover happens when wan1 is down it goes to wan2 but I want to link fallback when WAN1 comes up again.  We no...
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Mohamed_Ahmed_Kansoh's avatar
Mohamed_Ahmed_Kansoh
Icon for MVP rankMVP
Dec 15, 2024

hi Prasad21l

 

Could you please share the configuration Flow. 
For me I expect you have a Firewall Sandwich solution > we called it like that when BIGIP sits down between 2 firewalls but in this case you have two routers instead of Firewalls. 

I will explain what I understood and let me know if I am correct: 

1- you have wildcard Virtual server >> Traffic goes through it to internet.

2- you have pool with two members ( Wan1 & Wan2 ) 

3- you are configuring a transparent health monitor , to monitor bother of links. 

 

So let me ask you here , do you use PGA "Priority Group Activation " on pool level or not ? 
I need to know the Configuration criteria of choosing the active link and when it marks it disabled. 

so let me know more about the context 

Prasad21l's avatar
Prasad21l
Icon for Nimbostratus rankNimbostratus
Jan 23, 2025

Yes,  ISP Router --> F5-->SW(L2 for HA)-->FW-->SW-->DMZ

Also enabled PGA with Less than 1 option.

1- you have a wildcard Virtual server >> Traffic goes through it to the internet. --yes

2- you have a pool with two members ( Wan1 & Wan2 ) -- yes 

3- you are configuring a transparent health monitor, to monitor the bother of links --  we enabled monitor on the pool.

 

Thanks

Prasad