Simple Redirect with probes

Unanswered Question
Aug 14th, 2008
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Is there any reason why we wouldn't be able to have something like this:

Rserver redirect RS1

Webhost-redirection 301


Rserver redirect RS2

Webhost-redirection 301


Serverfarm redirect SF1

Predictor roundrobin

Rserver RS1


Rserver RS2


Class-map match-all REDIRECTVIP_CLASS

Match virtual-address tcp eq 80

Policy-map type loadbalance first-match REDIRECTSF_POLICY

Class class-default

Serverfarm SF1

Policy-map multi-match INPUT_POLICY


Loadbalance vip inservice

Loadbalance vip icmp-reply active

Loadbalance policy REDIRECTSF_POLICY

Interface vlan100

Description outside client facing

Service-policy input INPUT_POLICY

To permanently redirect users in a round-robin fashion to two servers? The URL that they originally go to would just be a first-hand-off; it would need to change in the redirect URL. So they may go to “” and has a DNS entry of They would get round-robin redirected to or, which have different IP addresses, with the same URL path “/login.cgi.” It would be a permanent redirection (301).

The purpose would be to do simple load balancing at a site where there are no ACE modules, but where there is a connection with a large RTT to another site with an ACE. We wouldn't want to run everything through the ACE as normal due to the RTT.

How would you setup probes to make sure the redirect servers are available in this scenario?

Would there be a way to use sticky with this configuration, so that the redirects were not permanent, and the clients stick to the redirect server they initially are sent to?


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