Re: Which WIC should I use for frame relay over a 1720 router?
Is your carrier providing you with a DSU/CSU?
If yes, and you know for sure you will never need another serial interface (3174, AS/400, redundant frame link) then you can use a WIC-1T. If you think you may need an additional port in the future I would go with a WIC2T.
If you need to provide DSU/CSU functionality then I would go with the WIC-1DSU-T1. This eliminates having another external device to support.
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...