asterisk users - Feb 2005 - Problem connecting a TE410P to an E1/IP equipment

On Wed, 23 Feb 2005, Johan Bilien wrote:
> I'm trying to connect a PC with a TE410P to an E1/IP equipment.
> Unfortunately I keep getting a yellow alarm from zaptel (in zttool) 
> and a Loss of Framing alarm on the remote equipment.
> 
> The E1/IP is connected on the other side to a PRI interface on a GSM
> MSC.
> 
> I have configured the span as:
> span=1,1,0,ccs,hdb3 (also tried span=1,0,0,ccs,hdb3)
> 
> and the channels as:
> bchan=1-15,17-31
> dchan=16
> 
> The LED on the port is green.
> 
> I tried to load both the se and us tonezones (I'm in Sweden).
> 
> Is there a way I can know why the yellow alarm was triggered? And do
> you have ideas why the other equipment reports a LOF alarm?
Yellow alarm is the same as "remote alarm" - i.e. the other side is
saying
that it cannot hear you. Given the Loss Of Framing on the other end this 
seems resonable.

Is the remote end set to use CRC4? Try adding ",crc4" to the end of
the
span line.

Peter

Hi,

I'm trying to connect a PC with a TE410P to an E1/IP equipment.
Unfortunately I keep getting a yellow alarm from zaptel (in zttool) 
and a Loss of Framing alarm on the remote equipment.

The E1/IP is connected on the other side to a PRI interface on a GSM
MSC.

I have configured the span as:
span=1,1,0,ccs,hdb3 (also tried span=1,0,0,ccs,hdb3)

and the channels as:
bchan=1-15,17-31
dchan=16

The LED on the port is green.

I tried to load both the se and us tonezones (I'm in Sweden).

Is there a way I can know why the yellow alarm was triggered? And do
you have ideas why the other equipment reports a LOF alarm?

Here's the content of /proc/zaptel/1:

cat /proc/zaptel/1
Span 1: TE4/0/1 "TE410P (PCI) Card 0 Span 1" HDB3/CCS YELLOW
ClockSource
        IRQ misses: 4

           1 TE4/0/1/1 Clear (In use)
           2 TE4/0/1/2 Clear (In use)
           3 TE4/0/1/3 Clear (In use)
           4 TE4/0/1/4 Clear (In use)
	   (...)
          10 TE4/0/1/10 Clear (In use)
          11 TE4/0/1/11 Clear (In use)
          12 TE4/0/1/12 Clear (In use)
          13 TE4/0/1/13 Clear (In use)
          14 TE4/0/1/14 Clear (In use)
          15 TE4/0/1/15 Clear (In use)
          16 TE4/0/1/16 HDLCFCS (In use)
          17 TE4/0/1/17 Clear (In use)
          18 TE4/0/1/18 Clear (In use)
	  (...)
          27 TE4/0/1/27 Clear (In use)
          28 TE4/0/1/28 Clear (In use)
          29 TE4/0/1/29
Thanks,
Johan

On Wed, Feb 23, 2005, Peter Svensson wrote:
> On Wed, 23 Feb 2005, Johan Bilien wrote:
> Yellow alarm is the same as "remote alarm" - i.e. the other side
is saying
> that it cannot hear you. Given the Loss Of Framing on the other end this 
> seems resonable.
> 
> Is the remote end set to use CRC4? Try adding ",crc4" to the end
of the
> span line.
I tried that but kept getting Red alarm / Recovering alternatively. I am
almost sure the other end is configured without CRC.

Johan.

Peter Svensson wrote:
> Yellow alarm is the same as "remote alarm" - i.e. the other side
is saying
> that it cannot hear you. Given the Loss Of Framing on the other end this 
> seems resonable.
Actually, "yellow alarm" is most frequently generated when the link 
(physical layer) is up and running, but the circuit (logical layer) is 
not "up" (administratively).

LOF usually generates "red alarm" in my experience if left uncorrected
:-)