From: Andres Zeller (azeller@xxxxxxxxxx)
Date: Thu Jul 20 2000 - 00:54:18 GMT-3
Layer 1 isdn problems are switch mis-assigned, or physical layer problem, like
incorrect pinout between dmarc, and the isdn jack, that includes the cable from
the wall to the U interface. The two most common switch types in Norht America
are dms100 and 5ess. Switch type is an option available at the router global
config level, not under the interface.
Andres Zeller
Sr. Network Engineer
QWEST Communications
Richard_Woo@infonet.com wrote:
> Padhu,
>
> If you haven't already, check the following:
> * BRI port type ( U or S/T)
> * ISDN Switch type (try different type)
> * Cable from the BRI port to the jack. (straight thru, not cross over)
>
> I had a problem with my home ISDN switch type. Telco told me to use
> certain type, but it didn't work.
> I tried other types and found one that worked. Later on, I found out that
> it was a common thing among the users.
> If the layer 1 isn't working, I woudn't even bother trying other stuff like
> SPID#.
> Hope this helped.
>
> Richard
>
> "Wojtek Iwanczyk" <WIwanczyk@exenet.com> on 07/18/2000 11:04:54 AM
>
> Please respond to "Wojtek Iwanczyk" <WIwanczyk@exenet.com>
>
> To: ccielab@groupstudy.com, Padhu@steinroe.com
> cc: (bcc: Richard Woo/HQ/ISC)
>
> Subject: Re: ISDN layer-1 deactivated
>
> Check with the TECO.... Is it an extended demark ?? if so check the pin
> outs ...
>
> Wojtek Iwanczyk
> Sr Support Engineer
> Exenet Technologies
> 15 E 26th Street
> New York, NY 10010
> (212) 684 7300
> wiwanczyk@exenet.com
>
> >>> <Padhu@steinroe.com> 07/18/00 01:40PM >>>
>
> I have 2 new BRI ISDN lines. Had the ckt extened to my office and plugged
> into 2503's BRI port.configured basic-5ess as switch type...reloaded and
> tried and sh int bri0
> shows i/f up but spoofing ...I took the router over to the demark and
> connect the router directly and it still didnt work. layer-1 deactivated.
>
> I am using a 2503 ..It has a BRI port..Am i missing something or should i
> work with the telco ? Thanks .
>
> Cheers,Padhu
>
> newyork#sh isdn status
> The current ISDN Switchtype = basic-5ess
> ISDN BRI0 interface
> Layer 1 Status:
> DEACTIVATED
> Layer 2 Status:
> Layer 2 NOT Activated
> Layer 3 Status:
> 0 Active Layer 3 Call(s)
> Activated dsl 0 CCBs = 0
> Total Allocated ISDN CCBs = 0
> newyork#sh int bri0
> BRI0 is up, line protocol is up (spoofing)
> Hardware is BRI
> MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
> Encapsulation PPP, loopback not set
> Last input never, output never, output hang never
> Last clearing of "show interface" counters never
> Input queue: 0/75/0 (size/max/drops); Total output drops: 0
> Queueing strategy: weighted fair
> Output queue: 0/1000/64/0 (size/max total/threshold/drops)
> Conversations 0/0/256 (active/max active/max total)
> Reserved Conversations 0/0 (allocated/max allocated)
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 0 bits/sec, 0 packets/sec
> 0 packets input, 0 bytes, 0 no buffer
> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
> 0 packets output, 0 bytes, 0 underruns
> 0 output errors, 0 collisions, 9 interface resets
> 0 output buffer failures, 0 output buffers swapped out
> 0 carrier transitions
>
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