[c-nsp] MPLS over VLAN

[Gert Doering]

Hi,

On Mon, Apr 26, 2010 at 05:32:05PM -0400, Paul Stewart wrote:
> Can someone explain this a bit better for me? ;)   Sorry if this is "MPLS
> 101"...
> 
> We are getting ready to deploy some equipment (mixture of Cisco/Juniper)
> that is MPLS capable.  We'd like to transport some VPLS traffic however in
> the middle of a few of the links are layer2 switches - we've been told this
> isn't possible even with 1600 MTU frame size supported.... Juniper is
> telling us (in one particular segment) that we must hang MX gear in there to
> make it work with MPLS... 

Well, the L2 switches "in between" wouldn't know how to handle MPLS, but
"should" (as in "I have not seen evidence to the contrary") not interfere
with the MPLS packets as such.  (Except for MTU issues, but that's 
independent of MPLS encapsulation)

Just as these L2 switches would be able to transport IP or IPv6 as L3
protocols, without understanding what these protocols are about.

gert
-- 
USENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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