[72349] in North American Network Operators' Group
RE: 802.17 RPR and L2 Ethernet interoperablity (Ethernet over RPR)
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Wed Jul 7 06:52:12 2004
Date: Wed, 7 Jul 2004 12:51:34 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: nanog@nanog.org
In-Reply-To: <Pine.LNX.4.44.0407071108020.10437-100000@mailbox.c4l.co.uk>
Errors-To: owner-nanog-outgoing@merit.edu
On Wed, 7 Jul 2004, Sam Stickland wrote:
> One question about this, the Q-in-Q tunnelling would have to take place on
> the switch connected to the ring - what happens if the packet has already
> been placed in a dot1Q tunnel? I haven't really worked much with dot1Q
> tunneling - are their any know problems with extra tags? (aside from MTU
> issues, but I imagine most rings will support at least 9bytes)
Most switches will only see the outer tag and will thus be transparent for
Q-in-Q:ed packets.
--
Mikael Abrahamsson email: swmike@swm.pp.se
