Hi all, there are a lot of posts on how to create a vlan bridge, but none seem to fit exactly what we need.
We have a number of hosts in vlan 1, but for various reasons we need to change the vlan id from 1 to 2.
Vlan 1 spans multiple buildings and switches, includes edge and trunk ports, and is generally complicated enough that we can't simply write a script to change everything all at once.
It wouldn't be hard to write a script for all the Cisco switches, but the servers connected on the trunk ports would have to be all changed at once too -- not going to happen.
Instead, we'd like to be able to move servers and ports one at a time, at our leisure, while maintaining connectivity. A vlan bridge came to mind.
But it's confounding me.
Details:
- Two 6500 core switches, with 3750 and 3750X edge switches.
- Non-routed vlan using private ip space, used for iscsi and management. (There is no SVI on vlan 1.)
- I've tried creating two SVIs (int vlan1 and int vlan2) and putting them both in the same bridge group. Didn't work.
Is plugging a cable from one port into another (and disabling spanning-tree) my only option? There's a reason why switches prevent that by default, so I don't want to do it if there is a Cisco-recommended way.
Thanks in advance,
Mike
