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transparent tcp service redirection?

Hi,

We would like to move a tcp connection (not http) between host 1 and server 1 to host 1 and server 2 when server 1 has to be go under maintenance. A CSS would be used.

If we put the server 1 in "out of service" mode, all new connections go to server 2, which is fine.

However, host 1 has a persistent tcp connection to server 1. The goal is to transparently move the connection between the CSS and server 1 to CSS and server 2. In other words, only the back end connection would be reset.

The configuration would be as follows,

persistence reset remap

content C1

vip address ...

protocol tcp

port X

add service server1

add service server2

active

If we want to schedule maintenance, the following commands would be issued:

service server1

suspend

!

content C1

remove service server1

Would that configuration move all tcp connnections from server1 to server 2 transparently to host1?

If there is a solution for the CSS, is there a solution for the CSM?

Thanks,

Best regards,

Pascal

1 REPLY
Cisco Employee

Re: transparent tcp service redirection?

This is not possible for the CSS to transparently move a connection from one server to the other.

The persistent commands are for HTTP only.

The CSM as such a functionality with the function 'failaction reassign' that you configure under a serverfarm.

Regards,

Gilles.

Thanks for rating this answer.

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