Looking into migrating our 3750 stack to 6509 VSS and would welcome all suggestions.
The current 3750 core stack is the default gateway on the network, as well as interface vlans, port-channels, and ip routes, and ACL's.
I see a couple of options:
1. Configure 6509 and then just move the 3750 connections over to 6509 with some short downtime.
2. Implement HSRP between 6509 and 3750, change the default gateway as the HSRP address then gradually move connections from 3750 to 6509.
3. Any suggestions.
Interface Vlan configs - would there be potential issues with Vlans during migration?
Also, would you recommend installing a single 6509, migrating, then configuring the VSS? Or configure the 6509 for VSS, then perform the migration?