[c-nsp] (MPLS)MTU and Cat5k RSM

[Peter Salanki]

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With CatOs 6.4, the 5k supports jumbo frames. The RSM itself on the  
other hand will never support jumbos (afaik). Just as a reminder, you  
can't use MLS for MPLS. I don't think this is the best platform for  
you to deploy MPLS on.

4 jul 2006 kl. 09.05 skrev Gert Doering:

> Hi,
>
> has anyone of you tried running MPLS on Cat5k RSM modules?   
> According to
> feature navigator it's supported (in -js), but I'm wondering about  
> frame
> size and MTU issues.
>
> What's the intrinsic MTU of the RSM<->Backplane link?  "show port cap"
> claims "Jumbo frames no"...
>
> What CatOS version is needed on the Cat5k to get jumbo frame support
> anyway?  (I assume "6.x", as one of our Cat5k with 6.4 shows
> "jumbo frame: yes" under "show port cap", while another one, still
> on 5.5, doesn't even list this).
>
>
> On a related tangent: our Catalyst 2948G claims "Jumbo frames no" on
> its GigE ports.  Is this a software issue, and might go away with a
> more recent CatOS (we run 7.6(7)), or is this a hardware limitation?
>
> gert
> -- 
> USENET is *not* the non-clickable part of WWW!
>                                                            // 
> www.muc.de/~gert/
> Gert Doering - Munich, Germany                              
> gert at greenie.muc.de
> fax: +49-89-35655025                        gert at net.informatik.tu- 
> muenchen.de
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Sincerely

Peter Salanki
Chief Network Engineer
Bahnhof AB (AS8473)
www.bahnhof.se
Office: +46855577132
Cell: +46709174932


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