"unsupported" features in IOS ("mpls mtu") (was: Re: [c-nsp] High Availability PoP Design)

Gert Doering gert at greenie.muc.de
Fri Nov 4 13:44:41 EST 2005


hi,

On Fri, Nov 04, 2005 at 12:31:21PM -0500, Rodney Dunn wrote:
> We support 1500 byte ip headers on those PA's +
> 6 labels (24) bytes.

So if I understand this correctly, "mpls mtu 1524" will still work on
FE ports on 7200?

My math is a bit on the weak side today, but is this enough to do 
EoMPLS crossconnects?  1500 IP + 14 bytes Ethernet header leaves 
10 Bytes for labels - and you only need 2 labels, so you should be
fine... hmmm.

gert

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Gert Doering - Munich, Germany                             gert at greenie.muc.de
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