ASR and arrowpoint-cookie

[bjelf]

Is it recommended to use ASR on arrowpoint-cookie content rules? I know that when the primary css fails the backup css will accept cookies issued by the primary and then issue a new to the client one for the same server. I understand the need on sticky-srcip content rules.

Thanks

[p.krane]

You can use the ASR on the arrowpoint-cookie content rules. You can use the following URL to learn how to configure arrowpoint cookies.

http://www.cisco.com/univercd/cc/td/doc/product/webscale/css/css_740/contlbgd/sticky.htm#wp1109390

It is just two commands. One on the content rule "advance-balance arrowpoint-cookies" and one on the service "string value" value is the cookie that will be sent. If you don't specify the string it will use the ip address in the service.

[Gilles Dufour]

With arrowpoint-cookie, there is no sticky table.

So ASR does not need to exchange information between the 2 CSS.

However, ASR is also there to preserve active connections after failover.

So you should use it for every content rules whatever the loadbalancing option.

Also, I'd like to clarify one point.

The backup CSS will not issue a new cookie when receiving new connections.

Both CSS will use the same cookie, which is why there is no need to exchange sticky table info for arrowpoint-cookie.

This is also why the backyp can take over new connections and understand the cookie presented by the client.

Regards,

Gilles.

[bjelf]

Ok, will use ASR on all. Thanks Gilles.