[c-nsp] Spanning-Tree vs. EoMPLS links in SXI2?

[Ben Basler (bbasler)]

Hi,

The question is if the ingress linecard has a DFC3B/BXL or DFC3C/CXL or
a CFC (and if a CFC if the Sup is a PFC3B/3BXL or PFC3C/3CXL). You might
be hitting CSCtb41832 which from what I understand will be resolved in
SXI4 and only applicable to 3C/CXLs.

Cheers,
Ben

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Gert Doering
> Sent: Monday, March 15, 2010 12:42 AM
> To: David Hughes
> Cc: Gert Doering; Cisco Mailing list
> Subject: Re: [c-nsp] Spanning-Tree vs. EoMPLS links in SXI2?
> 
> Hi,
> 
> On Mon, Mar 15, 2010 at 04:25:56PM +1000, David Hughes wrote:
> > On 11/03/2010, at 11:00 PM, Gert Doering wrote:
> >
> > > (Well, actually you can, by plugging a loop between two ports, one
> > > port being a switchport/trunk and the other port being the EoMPLS
> > > link.  But that won't gain me much compared to what I have now -
if
> > > the IOS combination is broken with STP+EoMPLS, it will also be
> > > broken if that IOS is running on R1...)
> >
> > Hate to admit it but I just ran this up on s720/SXI3 boxes.  Short
> > lived EoMPLS requirement at a site.  The whole "external loopback"
> > design is such a hack.  But, what can I say, it's ugly but it works,
> 
> Yes, seconded - it's ugly but it works.  I have to use this in other
places,
> but it's not really making the configuration any easier to understand
for my
> junior colleagues.
> 
> > and it's passing MST BPDUs just fine.
> 
> Now that is good news :-) - what line card are you terminating the
EoMPLS on?
> (I'm asking because I'm wondering whether our problem is specific to
> 6724-SFP)
> 
> gert
> 
> --
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> Gert Doering - Munich, Germany
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> fax: +49-89-35655025
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