[c-nsp] Cisco 6506E/Sup720 => EoMPLS port mode support Full spanning tree ?

Gert Doering gert at greenie.muc.de
Tue Jan 8 12:19:11 EST 2013


Hi,

On Tue, Jan 08, 2013 at 05:00:03PM +0100, Olivier CALVANO wrote:
> Anyone know if i use a port of my cisco 6506E/Sup720 in EoMPLS Port mode,
> the Spanning tree and other is encapsuled into the EoMPLS ?

My crystal ball is unsure what it is that you want to know.

 - Packets coming in from the remote device connected to the 6500 port
   will be forwarded to the other end of the EoMPLS link - no matter 
   whether STP, ARP, IP, or whatever packet (watch out for MTU if using
   tagged packets)

 - the 6506 itself will *not* generate STP packets on an EoMPLS port
   (neither outbound, nor virtually inbound), as it is not running a 
   bridge instance

 - CDP *will* be sent on the EoMPLS port, at least on some releases, so
   if you use CDP on the end devices, turn it off on the 6500

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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