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Re: Channelized T1's & Remote Access Routers
From: Roland Dobbins <rdobbins () netmore net>
Date: Fri, 06 Oct 2000 16:40:05 -0700

Yes, that's the feature to look for on the Adtran DSU and appropriate
module(s), drop-and-insert.

Steve Gibbard wrote:

The feature you're looking for is called drop and insert.  I don't think
the channelized T1 modules for the Cisco 3640 will do it.  I don't know
about the AS5300 off the top of my head, but Cisco's web site should say.

I was doing this with an Ascend Max 6000, and it worked.  I wouldn't
recommend the Maxes, though, since unless something has changed in the
last five months, we were never able to find a software version for it
that supported v.90 and would stay up for more than a few weeks without
needing to be rebooted.  Other dial-up terminal servers should be able to
handle this too.  Look for "drop and insert" in the specs.

Inet-access is probably a better list for this discussion than nanog.


On Fri, 6 Oct 2000, Karyn Ulriksen wrote:

I've been handling routing for web farms for quite a while and all my
clients have leased lines (T1's, T3's, etc) and haven't done much in the way
of dialup connects except for a portmaster here and there for backdoor
stuff.  As a result, I'm a little dumb about basic dial-up access and

What access router would I need to take in a channelized T1 that needs to
have 6 of the lines split out for feeds to a fax server and the remaining
used for dialup POPs?  I've been looking at the Ascend/Lucent SuperPipe 155
and the Cisco 36xx and 53xx, but wonder if those can split out the fax
server feeds I need from the T1.

Any and all *constructive* feedback on this will be greatly appreciated.


Steve Gibbard                           scg () gibbard org

 Roland Dobbins <rdobbins () netmore net> // 818.535.5024 voice

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