[c-nsp] 28xx and a DS3

[Bruce Robertson]

What we do here is use any old routers with Fast Ethernet interfaces, and 
terminate the DS3 at both ends with either the Adtran T3SU with the Ethernet 
interface card.  The T3SU has good out-of-band Ethernet management, and if you 
get the newer version of the T3SU, it even has a built-in modem for backup 
out-of-band management.  The T3SUs are readily available on eBay, though I 
usually end up having to order the Ethernet interface cards from a distributor.

This solution is MUCH cheaper than a Cisco DS3 interface card, let alone 
having to upgrade to a more advanced router.

Let me know if you need more information on exactly what to get.

(You used to be able to do the same thing with the Net2Net/Paradyne/Zhone 
DSE4500, but that product has been discontinued, and didn't have as good 
management.)

--
Bruce Robertson, President/CEO                           +1-775-348-7299
Great Basin Internet Services, Inc.    company-wide fax: +1-775-348-9412
http://www.greatbasin.net                       my efax: +1-775-201-1553


Chris Moore wrote:
> Hi all,
> 
> 
> 
> I work for a company that SERIOUSLY pinches pennies on network gear and
> am trying to spec routers for both ends of a point-to-point DS3. Cisco
> is pretty clear - I need at least a 3800 series. But I'm leery of
> Cisco's recommendations - it always seems like they're trying to up-sell
> me. Same (even worse) with my reseller. As an example, Cisco says a 2811
> is only good for two T1s but I have them in my environment running 4
> encrypted T1s without breaking a sweat.
> 
> 
> 
> I've been looking at various specs and they're confusing and often
> conflict. I've seen specs of encryption performance of more than 130Mbps
> with the addition of a AIM VPN card and 200 to 250Kpps (100Mbps+ w/ 64
> byte packets) max throughput for 2800 series routers. That makes it look
> to me like it should be able to handle a DS3 pretty easily.
> 
> 
> 
> These routers won't be doing much in terms of services. They'll be
> running a single instance of OSPF with a pretty small route table (<100
> routes), be encrypting traffic across the link and possible (but not
> necessarily) some basic ACLs and/or QoS.
> 
> 
> 
> My question is, has anyone tried this? What was your experience?
> 
> 
> 
> Thanks,
> 
> 
> 
> Chris
> 
> 
> 
> _________________________________________
> 
> Chris Moore
> 
> Senior Network Engineer
> 
> Guardian Mortgage Documents
> 
> 
> 
> 303-942-2019
> 
> emergency (GMD Help Desk): 303-942-2002
> 
> chris.moore at gmd.com
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
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