Our company currently has about 12 point-to-point T1s from different sites all connecting to our headquarters. We are moving soon, so we have decided to get a DS3 at our headquarters that will have all of the T1s coming in on it, instead of having about 12 T1s coming in.
I have asked a Cisco dealer to get me a quote on a new router and module to support this, and they gave me a quote for a Cisco 3845 router with a NM-1A-T3 module. As far as I can tell, this module is ATM only and I don't see how it would support multiplexing T1s onto a DS3.
I haven't found much documentation on doing the type of setup I am trying to do, so I was wondering if anyone can offer any suggestions. I would appreciate any advice from anyone who has experience with T3/DS3 modules. Also, if it is possible to do this with the NM-1A-T3 module I would greatly appreciate any sample configurations for this type of setup.
Correct, the NM-1A-T3 module would be doing ATM, not mux'ing them out.
BUT, depending on your local telco, it might be worthwhile investigating this sort of solution, and changing up your T1 lines at the telco, rolling frame-relay T1s from remote sites into an ATM DS3 feed, and using the 3845 with the NM-1A-T3 solution. (ie. the telco takes care of terminating your Frame-Relay T1s into ATM and transporting over cell-relay back into your ATM DS3).
But, if you do want to straight PtP DS1 MUX'ed into a DS3, you're going to have to start looking at much more expensive hardware. I'd recomend a Cisco7200 with a PA-MC-T3. But since that combo is $35000 list price, it is a tad higher than the 3845 you've been quoted.
Cisco doesn't offer the same on anything less than the 7200 platform, (or equivilent, ie FLEXWAN in a 650x, or something else in the 7x00, etc). but it'll do exactly what you want.
If you want to stick with your existing hardware, but MUX out a DS3, then a basic M13 Mux (ie. Adtran MX2800) will do it, but then you're taking T1s out of the MUX as single copper lines back into what you use to terminate them now.
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TruTech Systems
Office: 951.696.3688
Mobile: 951.440.8711
AIM: ricktrutek
E-Mail: rick at trutechsystems dot net
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Correct, the NM-1A-T3 module would be doing ATM, not mux'ing them out.
BUT, depending on your local telco, it might be worthwhile investigating this sort of solution, and changing up your T1 lines at the telco, rolling frame-relay T1s from remote sites into an ATM DS3 feed, and using the 3845 with the NM-1A-T3 solution. (ie. the telco takes care of terminating your Frame-Relay T1s into ATM and transporting over cell-relay back into your ATM DS3).
But, if you do want to straight PtP DS1 MUX'ed into a DS3, you're going to have to start looking at much more expensive hardware. I'd recomend a Cisco7200 with a PA-MC-T3. But since that combo is $35000 list price, it is a tad higher than the 3845 you've been quoted.
Cisco doesn't offer the same on anything less than the 7200 platform, (or equivilent, ie FLEXWAN in a 650x, or something else in the
7x00, etc). but it'll do exactly what you want.
If you want to stick with your existing hardware, but MUX out a DS3, then a basic M13 Mux (ie. Adtran MX2800) will do it, but then you're taking T1s out of the MUX as single copper lines back into what you use to terminate them now.
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