From: Ray Masbad (rmasbad@sbcglobal.net)
Date: Fri Oct 11 2002 - 14:21:14 GMT-3
Esther,
Is the Cat 3550 you are working with connected to another switch or router?
I ran into a similar situation and the only conclusion I arrived at (and
someone can correct me on this if I am wrong) was that the 3550 was not
connected to anything while I was trying to configure it. I started
seeing the STP instances as soon as I connected it to another switch.
HTH
esther wrote:
>I've configuring the STP in the C3550.
>The config guide mentioned the STP is enabled for vlan1 by default.
>But I can't find any information using below command.
>
>Cat3550#sh spanning-tree (summary)
>
>No spanning tree instances exist.
>
>Cat3550#
>Cat3550#
>Cat3550#sh spanning-tree vlan 1
>
>Spanning tree instance for vlan 1 does not exist.
>
>Cat3550#
>
>So I made one more vlan 100 and enabled the STP on it.
>But it brought the same result, nothing information.
>
>Cat3550#sh spanning-tree 100
>
>Spanning tree instance for bridge 100 does not exist.
>
>Cat3550#
>
>What's wrong here?
>
>Thanks again,
>
>Esther.
>
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