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Which WIC should I use for frame relay over a 1720 router?

admin_2
Level 3
Level 3

I have a 1720 Router with the modular WAN interface slots.

Which Wan Interface Card do I need to facilitate my PPP frame-relay between 2 buildings at 256K?

2 Replies 2

Not applicable

WIC-1T can be used to transport over FR

rlcarr
Level 1
Level 1

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.

~ron

CCNP, CCDA, CNE

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