I'm currently trying to make some kind of setup like this:
2 Routers 7206VXR / NPE-G1 connected both at Gigabit speed to 2 devices (named D2).
There is already a redundancy mechanism on both D2 to faill over the slave in case the master broke down.
I don't know yet which feature should I use on both Cisco 7206 routers in order to make also the faill-over (depending on the GE port status).
I saw that LACP MultiChassis EtherChannel (MEC) could help me but I really don't figure how to make that setup. I found Cisco guides but nowhere I can see how the setup inter-router does work (I guess they need to speak together to see the status of each other + port priority)...
Could you please help me on this?
Thanks in advance,
7200 can't do MEC, mostly used in Cisco VSS (a pair of 6500 chassis as one entity).
Depending on what you want to achieve the typical fail-over of a 7200 is to use HSRP where they IP address of the router address can fail-over between the two boxes.