Currently have a remote branch with a 1760 and a T1 doing a IPSec vpn tunnel to a 3660. I would like to add a 2nd T1 on the 1760 and bond them to get 3Mbps and still maitain the vpn tunnel. What's the recommendation? Use PPP Multilink or CEF? Any config examples?
I think Multilink PPP is a better bet for load sharing, but it can increase CPU utilization in some cases to a greater extent that is desirable. So I generally recommend trying MLPPP first, and if CPU usage becomes too high, revert to per-packet CEF instead.
(I'm assuming you have a hardware VPN encryption module in the 1760, as I don't think a 1760 could saturate even a single T1 doing software 3DES encryption.)
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...