7 Jul
2004
7 Jul
'04
9:17 a.m.
On Wed, 7 Jul 2004, Mikael Abrahamsson wrote:
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.
That was my worry - the definition of most. 99% of switches or 60%? This isn't actually a standard is it, so I presume this behaviour is expected, but not required? Sam