[c-nsp] SVI's on 3550s

[Aivars]

Ok, sorry, my fault!

I did not know that switch takes into account
allowed vlans on trunks. My assumption was that if you use vlans, you
must have at least one trunk port on the switch and this way the vlan
interface stays up.

Since the switch does take in account witch vlans are allowed on
trunk(s) when putting vlan interface up or down, it might be a good idea
to remove the particular vlan from the trunk if it is not needed
there - switchport trunk allowed vlan remove xxx.

Aivars

Monday, January 30, 2006, 7:01:58 PM, you wrote:

IM> On 1/30/06, Brett Frankenberger <rbf+cisco-nsp at rbfnet.com> wrote:
>> On Mon, Jan 30, 2006 at 05:13:54PM +0200, Aivars wrote:
>> > A short answer is - NO.
>>
>> A correct answer is - YES.

IM> :)


>>
>> Except possibly on very old version of code ... but I've had 3550s
>> since they were pretty new, and they've always worked that way.
>>
>> > IM> I am trying to configure a floating static but the original route
>> > IM> never disappears as the SVi stays up, even though the only interface
>> > IM> in the vlan goes down.
>>
>> Are you sure the only interface in the VLAN is going down?  Do you have
>> any trunk interfaces that are allowing that VLAN?
IM> Are there timers involved? Maybe the guy on site wasn;t waiting long enough.

IM> Fairly sure there are no trunks allowing it