SPAN and RSPAN (1.50)
Whilst trying to figure out how to block HSRP traffic over a QinQ link I had to set up a SPAN port, so thought it would be a good …
Category: Switching
Fun with QinQ tunnels – Part 3 – Why HSRP and QinQ don’t play well
I have covered QinQ tunnels a couple of times now, but for an exceedingly brief recap a QinQ tunnel extends the layer 2 network across a WAN. You can …
How to implement HSRP on Cisco IOU and GNS3
Lots of people have said that HSRP does not work in either GNS3 or IOU. It does, but both softwares are very particular about what they require for it …
The BIG lab – Part 1 – Trunking, EtherChannel and Load-Balancing
I kind of feel that I really need to spend more time on my studies at the moment. So while the boys are down for their afternoon nap (but …
Fun with QinQ tunnels – Part 2 (Routing different subnets)
From part one, we know that the purpose of a QinQ tunnel is to extend a VLAN across the WAN or network. But what if site 1 is connected …