hi pro, i wanna ask you question about QinQ and L2-tunnel-protocol
this is illus i take on Cisco Doc CD about QinQ http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.1_13_ea1/configuration/guide/swtunnel.html
My question is:
resume Customer A have 2 Switch, and each have 1 link to ISP. 2 port of ISP running access vlan metro tag 40, mode qinq.
ok, i understand how the frame can transit over tunnel to remote end. But what if it transit from one port to other port on the same ISP switch, cuz we have 2 link to ISP switch. Ok, QinQ here, and i'm talking about data frame only !