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I'm very sorry to say that I have very bad expertise with Cisco IOS support of IPSec. I have a customer running more than 250 Cisco routers with IPSec tunnels connected in some cases each to other. I have more than 1 year something like a CAP case, a...
H-VPLS is not supported nowhere in Cisco portfolio, and as long as I know it is not planned. Cisco does not believe in VPLS (no matter that they participate in development) as you can see in some Cisco documents and news (if you search for VPLS). You...
As long as I know, you can change the TCC2 cards from SDH to SONET or backwards, just with SW change. The XC cards have to be different I believe (they use different frame formats).