[c-nsp] FWSM failover state flapping

Christian Zeng christian at zengl.net
Wed Nov 30 07:43:49 EST 2005


* Patrick Vanderstocken <patrhak at gmail.com> wrote:
>Just 3 interfaces: inside (SVI to MSFC), outside and a failover
>interface consisting of a 2x1Gbps trunk providing failover and
>stateful link at the same time.

When an interface must be monitored, you must make sure that both FWSMs
are seeing each other through the network defined by those interfaces.
Do you have the outside VLAN included in you failover trunk or any other
trunk between both switches?

In addition, try to use a newer OS release, 2.2(1) is outdated and had
some serious bugs (functionality as well as security issues).

Best regards,

Christian


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