Re: Multi-link PPP

Rudy Komsic ( (no email) )
Sat, 7 Mar 1998 14:10:58 -0500

Well, I think you definately have a misconfigured TC unit... because we have
no problems with Multilink with our TC unit. We have Zyxel's, USRs,
Motorolas, Ciscos connected on our system without a problem (After we have
configured MPIP Properly). Please answer the following few questions to
determine your actual problem.

1: Can you post your TC Code #s (PRI, Quad Cards, Netserver)
2: Do you only have 1 Chassis or Multiple chassis
3: Incase of Multi Chassis config, did you install MPIPServer and MPIPClient
4: In Emerald, did you change the login limit to 2
5: If you installed MPIPServer on the Chassis, are you sure you are properly
6: Did you specify an NTP Server on the Netserver (This is needed to
synchronize MPIP Encryption)
7: Did you configure your PRI/T1 to send ISDN Calls to terminate on the
Netserver or the Quad Cards (Slot 16 or Slot 0)

Waiting for your reply. If you want, send me E-Mail directly and I could take
a look at your Netserver configuration.

Rudy Komsic
President, Network Administrator - Cyberglobe Communications Inc.
4996 Place de la Savane, Suite 200, Montreal, Quebec, H4P 1Z6
Tel: (514)342-3883 Fax: (514)342-5139 E-Mail:

-----Original Message-----
From: Michael Whisenant <>
To: <>
Date: March 7, 1998 10:56 AM
Subject: Re: Multi-link PPP

> The problem that I am faced in the TC is that a user will get two
>connections, yet unless they are using an ASCEND then they never bond.
>This will result in 2 64K channels and even though data is passing over the
>second channel the TC does not see it and will drop the 2nd call as soon as
>the idle timeout is reached. Using a decoder the client see a rejection to
>bond the 2nd channel from the TC, which means that the 3COM and USR ISDN
>modems are NOT compatible? The ASCEND products will show the second
>channel as <MULTILINK:I0> or whatever port the first connection is located
>At 11:15 AM 3/6/98 -0500, you wrote:
>>Well we are using USR Total Control Chassis and we have NO problems with
>>The thing is USR does not support BACP but the BACP on the client's side
>>function without any problems. Clients who need 128k will normally be
>able to
>>demand it as we set up 2 concurrent logins within the Emerald user setup.
>>-----Original Message-----
>>From: Duane Schaub <>
>>To: <>
>>Date: March 6, 1998 10:43 AM
>>Subject: Re: Multi-link PPP
>>>Slightly off topic... But:
>>>I don't know about radius, but on Ascend, there is a considerable
>>>difference. MPP must be used for any multilink connection. PPP will only
>>>allow one connection.
>>>There is another problem involved with Ascend to Livingston Connections.
>>>An ascend dialing into a PM3, the ascend must have MPP turned on to do a
>>>multilink session. Unfortunately, the PM3 does not support the MPP
>>>protocol fully. I will allow an inital 2 channel connection, but if one
>>>channel drops, the ascend will no be able to pick up the second channel
>>>again unless both channels are dropped. Ascend says they will not support
>>>BACP and Livingston says no to MPP. Now that they are both owned by
>>>Lucent, we'll see.
>>>At 11:57 AM 3/5/98 -0800, you wrote:
>>>>Michael Whisenant wrote:
>>>>> I have seen conflicting issues about multi-link and radius,
>>>should the
>>>>> standard Framed-Protocol be MPP or PPP.
>>>>Its a NAS intepretation. Most don't differentiate between the two.
>>>>Dale E. Reed Jr. (
>>>> IEA Software, Inc. | RadiusNT, Emerald, and NT FAQs
>>>> Internet Solutions for Today |
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>>>> Emerald Mailing List
>>>Duane Schaub, President |Terra World, Inc - Connecting The Planet
>>>Terra World, Inc. |Southeast Kansas' Leading Provider
>>>200 Arco Place, Suite 252 |Flat Fee - Never an hourly Charge
>>>Independence, Kansas 67301 |Where Service is Top Priority!
>>>Voice (316) 332-1616 |
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