Adding Redundant Supervisor Engine's to 6509's

[matt_Travis]

Hi,

I am in the process of adding redundant sup1, sup2, and sup720 engines to our current 6509 switches. So far we have seen a brief loss of connectivity to traffic traversing a switch during the hot-insert of a new supervisor card. This outage causes problems to the application servers connected to these switches.

Is this a known issue and is there any way to minimize this outage?

Thanks,

Matt

[bbaillie]

The features you want are "SSO" (Stateful Switchover) and "NSF" (Non Stop Forwarding. The features when applied correctly will minimize the failover time for the 6500 series.

Here is a link with a bit of information on these items

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a0080462647.html

Cheers,

Brian