All,
I am trying to so something that you would think would be simple, however I am hitting a snag!
I walked into an enviornment with 1 class B subnet that spans several switchs and locations and want to break them up.
My plan is to "prep" new vlans by creating them and adding ports that are part of the huge vlan then going back in a timely fashion and removing the huge vlan from the ports one at a time or so. All the ports are attached to edge switches not PC's or servers.
However, when I attempt this on my 1200's the port that I add the new vlan to drops the old vlan causing work stoppage. Yet when I attepmt this on an 8600 all the ports and vlans appear to stay intact.
Here is a brief layout.
470 --> 1200 --> 8600.
The edge devices to not have any vlan configurations on them.
How can I get this to happen?
Thanks!
I am trying to so something that you would think would be simple, however I am hitting a snag!
I walked into an enviornment with 1 class B subnet that spans several switchs and locations and want to break them up.
My plan is to "prep" new vlans by creating them and adding ports that are part of the huge vlan then going back in a timely fashion and removing the huge vlan from the ports one at a time or so. All the ports are attached to edge switches not PC's or servers.
However, when I attempt this on my 1200's the port that I add the new vlan to drops the old vlan causing work stoppage. Yet when I attepmt this on an 8600 all the ports and vlans appear to stay intact.
Here is a brief layout.
470 --> 1200 --> 8600.
The edge devices to not have any vlan configurations on them.
How can I get this to happen?
Thanks!