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Forum Discussion

uzzii194_320831's avatar
uzzii194_320831
Icon for Nimbostratus rankNimbostratus
Sep 16, 2017

HTTP Node Mirroring

We have one BIG-IP LTM and two Web servers running HTTP servers. I have created a VIP using two web servers (Server 1 and Server 2). When one server (e.g. Server 1) down, users connected to this serv...
application delivery
BIG-IP
LTM
Jad_Tabbara__J1's avatar
Jad_Tabbara__J1
Icon for Cirrostratus rankCirrostratus
Sep 19, 2017

Hello,

 

It is possible only if your backend servers shares user sessions.

 

For example :

 

1) user 1 connects for the first time to server 1, server 1 returns a session cookie and synchronize cookie with server 2.

 

When server 1 fall down, the F5 will monitor this and send the user 1 on server 2

 

2) user 1 connects to server 2, if server 2 has received session information from server 1 => it can continue serving user 1 in the same way. If server 2 didn't receive any info about user 1 session from server 1 it restarts from zero...

 

So it is more a backend feature not the role of the F5 load balancer.

 

Hope it helps

 

Regards