ISDN: How to check whether its point-to-point or multipoint

Answered Question
Jul 1st, 2009

Hi, Is there any show/debug command to see whether the isdn link is point-to-point or multipoint?

I have this problem too.
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Correct Answer by Paolo Bevilacqua about 7 years 6 months ago

When you configure isdn static tei, it's p-to-p, else, its p-to-mp.

Multinumber BRi are p-to-mp, in fact see your above got assigned a dynamic TEI.

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Paolo Bevilacqua Wed, 07/01/2009 - 15:16

Check for no TEI assigned when configured p-to-mp on a p-t-p circuit.

Generally, multiple circuits with a single pilot number are p-t-p.

t4tauseef33 Thu, 07/02/2009 - 00:31

Hi,

we have ISDN2e. I want to check whether this ISDN is p-to-p or p-to-mp. From the configuration, i have not configured it manullay as a point to point or point to multipoint.

On this ISDN we have two ISDN numbers. How can i check it? below is the show isdn status command.

show isdn status

Global ISDN Switchtype = basic-net3

ISDN BRI0 interface

dsl 0, interface ISDN Switchtype = basic-net3

Layer 1 Status:

ACTIVE

Layer 2 Status:

TEI = 115, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED

Layer 3 Status:

0 Active Layer 3 Call(s)

Active dsl 0 CCBs = 0

The Free Channel Mask: 0x80000003

Total Allocated ISDN CCBs = 0

Correct Answer
Paolo Bevilacqua Thu, 07/02/2009 - 02:18

When you configure isdn static tei, it's p-to-p, else, its p-to-mp.

Multinumber BRi are p-to-mp, in fact see your above got assigned a dynamic TEI.

msasikumar Wed, 08/19/2009 - 00:19

Hi,

Pls tell me if that BRI configured as Point to point then what will be a value for the TEI

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