flamer
wrote:
> ton de w wrote:
>
> > Hello,
> >
> > Have to attend a meeting and comment on displaying spanning tree
> > blocked ports via a network management system using snmp gets.
> >
> > The kit is cisco (not quite sure which) and there are VLANs, VRFs, MPLS
> > implemented.
> > with RSTP and MST. Actually I am not quite sure what Multiple Spanning
> > Tree means, cos if you have lotsa VPNs I suppose you have lotsa STP
> > and/or RSTP as well.
> >
> > Sooo, I was wondering why one might want to identify blocked ports in a
> > (R)STP environment?
> > And if blocked ports are useful to know about maybe we need to know
> > about root ports as well?
> >
> > But my main question is can someone identify a MIB that has blocked
> > ports for (R)STP within or a URL to checkout myself (Fine Manuals read
> > wit enthusiasm!).
> > Or identify a case when blocked ports are not visible as I suppose MPLS
> > must hide a few things now and again.
> >
> > Thanx in advance for your help!
> >
> > Ton
>
> Hi I only just skimmed your question: stp & rstp are there to block
> ports when you have multiple links going from and to the same place. it
> decides which is the better link and uses that and shuts down the other
> as to avoid split horizon.
>
> you can run 'sh span ?' on the switch to see what commands you have
> available.. it varys switch to switch. there are listening, forwarding
> and blocking states.
>
> Flamer.
Thanx flamer!
How can I identify the blocked ports using SNMP?
Similar Threads
