From: balaji.balakrishnan (balaji.balakrishnan@swift.com)
Date: Thu Feb 20 2003 - 19:56:39 GMT-3
Sometime I observed that with some ISDN switch types, ISDN layer 1, 2 and 3 comes up only when you initiate some traffic. Under
idle condition all the ISDN layers remains deactivated.
- Bala.
adz wrote:
> you don't need to take the serial line down.
>
> the answer to this query depends what you mean by test the isdn line
>
> issuing a show isdn status will show you whether the bri telephone is
> connected to the telco switch.
>
> the backup interface just disables the bri interface, you still need to
> define interesting traffic like in a DDR scenario.
>
> so:
>
> 1. remove backup statement from serial interface
> 2. try this in enable mode; "isdn test call bri 0/0 <your mobile telephone
> number or something>"
> this would test the isdn line
>
> or if this is unavailable because of your ios feature set, you need to
> define interesting traffic and a route that is out of your bri port - try
> and ping something should cause it to dial.
>
> this might be helpful: debug dialler
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Kim_W
> Sent: 20 February 2003 17:01
> To: ccielab@groupstudy.com
> Subject: ISDN circuit test
>
> Groups,
>
> Currently I am using ISDN to back up a primay link failure with " backup
> interface bri0" command under serial interface.
>
> #sh int bri0
> bri0 is standby mode, line protocol is down
>
> I am looking for a way to test isdn line to see if it works without bringing
> down the serial line.
>
> Any help !!!
>
> Wol
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