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Posted by flamer die.spam@hotmail.com on August 5, 2008, 10:02 pm
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>
>
> > When Im configuring this 12G switch and I add a vlan I get no spanning
> > tree instance for it? I thought perhaps it was because it had no
> > ethernet connections up but even when bringing an interface up I still
> > get no stp instance.
>
> > heres what I have done:
>
> > vlan 123
> > name test
>
> > interface GigabitEthernet0/13
> > description trunk port
> > port-type nni
> > switchport trunk allowed vlan 2-4094
> > switchport mode trunk
> > udld port
>
> > interface GigabitEthernet0/1
> > switchport access vlan 123
> > media-type rj45
> > speed 100
> > duplex full
>
> > spanning-tree mode rapid-pvst
> > spanning-tree extend system-id
> > spanning-tree vlan 123 priority 0
>
> > switch#sh span vlan 50
>
> > Spanning tree instance(s) for vlan 50 does not exist.
>
> > switch#sh vlan br
>
> > VLAN Name =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Statu=
s =A0 =A0Ports
> > ---- -------------------------------- ---------
> > -------------------------------
> > 1 =A0 =A0default =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0act=
ive =A0 =A0Gi0/4, Gi0/5, Gi0/6,
> > Gi0/7
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
=A0 =A0 =A0 =A0 =A0 =A0Gi0/8, Gi0/9, Gi0/10,
> > Gi0/11
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
=A0 =A0 =A0 =A0 =A0 =A0Gi0/12, Gi0/13,
> > Gi0/14, Gi0/15
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
=A0 =A0 =A0 =A0 =A0 =A0Gi0/16
> > 123 test =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ac=
tive =A0 =A0Gi0/1
> > 1002 fddi-default =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 act/unsup
> > 1003 token-ring-default =A0 =A0 =A0 =A0 =A0 =A0 =A0 act/unsup
> > 1004 fddinet-default =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0act/unsup
> > 1005 trnet-default =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0act/unsup
>
> > any ideas? I have tried shutting and no shutting the vlan etc but cant
> > get spanning tree to work?
>
> > Flamer.
>
> Uhm, because you created a VLAN 123 and are trying to look at VLAN 50 ?
ah sorry, i was looking at the right vlan, i had changed numbers
around to not show anything sensitive (obviously didnt change all of
them), but thank you for pointing that out
it should read:
switch#sh span vlan 123
>
Spanning tree instance(s) for vlan 123 does not exist.
My real question should really be, if i create a vlan while there are
no active network connections on the switch is a stp instance created?
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