Channelized T1's & Remote Access Routers
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 equipment. 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. Karyn
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. -Steve 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 equipment.
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.
Karyn
-------------------------------------------------------------------------------- Steve Gibbard scg@gibbard.org
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.
-Steve
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 equipment.
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.
Karyn
-------------------------------------------------------------------------------- Steve Gibbard scg@gibbard.org
-- ------------------------------------------------------------ Roland Dobbins <rdobbins@netmore.net> // 818.535.5024 voice
Cisco has a new set of "VWIC" WIC modules that will do the job. http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121 limit/121x/121xh/121xh_2/dteadi.htm -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of Steve Gibbard Sent: Friday, October 06, 2000 6:06 PM To: Karyn Ulriksen Cc: 'nanog@merit.edu' Subject: Re: Channelized T1's & Remote Access Routers 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. -Steve 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 equipment.
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.
Karyn
---------------------------------------------------------------------------- ---- Steve Gibbard scg@gibbard.org
I've done something similar in the past by using external Adtran DSUs with pass-through capability. I set the channel-map in the DSU to pull the channels out which are used for voice, FAX, etc. and get/pass them from/to the PBX using a DSX-1 interface before they ever hit the V.35 interface which plugs into the back of the router. In this configuration, the router neither knows nor cares about the channels which aren't used for data traffic. 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 equipment.
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.
Karyn
-- ------------------------------------------------------------ Roland Dobbins <rdobbins@netmore.net> // 818.535.5024 voice
On Fri, 6 Oct 2000, Roland Dobbins wrote:
I've done something similar in the past by using external Adtran DSUs with pass-through capability. I set the channel-map in the DSU to pull the channels out which are used for voice, FAX, etc. and get/pass them from/to the PBX using a DSX-1 interface before they ever hit the V.35 interface which plugs into the back of the router.
In this configuration, the router neither knows nor cares about the channels which aren't used for data traffic.
Even using the DSX-1, wouldn't she need 2-wire ringdown cards to supply POTS lines to the fax? Seems like it would be less expensive than putting in a PBX to handle fax traffic. --- John Fraizer EnterZone, Inc
participants (5)
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Jason Young -
John Fraizer -
Karyn Ulriksen -
Roland Dobbins -
Steve Gibbard