I have a customer who has (1) 6509 backbone switches which is also acting as a root bridge. (7) 3524 are connect back to 6509 via fiber each as a seperate unit. At this point, if 6509 fails whole network will go down. I suggested to have an additional switch run in standby mode as a backup backbone switch. Customer doesn't want to spend around 40,000 to buy a 2nd 6509 switch. Can the backup switch be another Catalyst say 4000 or does it have to be the exact same model. I know the performance will be downgraded since 4000 series don't have the same switching backplane as opposed to 6509, but still it should take over as a root bridge incase 6509 goes down. In this configuration, the only thing they will have to do is to move their servers to the 4006 switch until the 6509 comes back online. All I need to make sure that the both 6509 and 4006 switch have the same configuration. Is there anything I am missing, please shed some lights guys. Teza
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