hot standby

[e-xiao]

i want to make two switches hot standby.

i mean ,if any of the two swiches is bad then the other will take and continue working without stop.

can Cisco do it?

[Prashanth Krishnappa]

What model of switches do you have?

[e-xiao]

any model of switches,

i know Redundant supervisor engines can be used on Catalyst5000 seriers,but now i want to know can i make two same model switches hot standby?

[Prashanth Krishnappa]

If you have properly designed network with dual core and all your other closet/distribution switches dual attached to core switches, you can make core switches redundant. Layer 2 redundancy is taken care by Spanning tree and for layer 3 redundancy, you can use HSRP

The layout should look something like the one in the following page

http://www.cisco.com/warp/public/473/16.html#4c