Just wondering if anyone knew whether there was a way to (temporarily) change the default behaviour for a 6500 running native IOS (V12), with regards to the way in which the routed VLAN interface is handled when there are no active devices in the VLAN...
That is, deafult behaviour is to not bring up the routed VLAN interface if there are no active VLAN ports. But if you are creating a VLAN at a remote site in preparation for something, you might have scheduled the work to be out of hours to minimise risk/disruption, and want the VLAN interface to come up so that any routing table changes kick in immediately - so you can see that there are no issues. Having re-assured yourself that the normal dynamic routing changes associated with the VLAN interface going up/down are seamless and non-disruptive, and once a real active device goes onto the VLAN, you could switch back to default behaviour, so that if the last device on the VLAN does indeed go down, the route gets (transparently) withdrawn.
Or any other suggestions about "workarounds" to temporarily fool the switch into thinking that there is an active port, when there is not (physically).