Why do we configure the Redundant Interface in CSS Public Face

[kaustav.gupta]

Hi,

I have a question : Why do we configure the redundant interface in a CSS facing the public side of a CSS.

I understand the need for the interface in the server side though. Please refer to the URL below;

http://www.cisco.com/univercd/cc/td/doc/product/webscale/css/css_810/redundgd/vipredun.htm#wp1063393

[Gilles Dufour]

this is not a requirement if your vips belong to the public vlan subnet.

But if your vip addresses are from a different subnet, then the upstream router needs a route pointing to the CSS redundant interface ip.

Gilles.