Kevin,
Check to see that you have a matching scrambling mode between the POET and
the Kentrox CSU/DSU.
-rb
>From: Kevin Nicholson <kcn@skycache.com>
>To: cisco-nsp@puck.nether.net
>Subject: Null (non-telco) DS3 questions.
>Date: Mon, 22 Nov 1999 14:37:47 -0500
>
>
>Is there a special trick to getting a non telco DS3 (i.e. two coax cables
>that I ran in the same room between two routers/DSUs, flipping the
>transmit and receive on one side) to work ?
>
>in rtra I have a 2 port POET card configured like this;
>
>interface Serial1/0
> description null DS3 to rtrb-h0-0
> ip address 192.168.0.1 255.255.255.252
> no ip directed-broadcast
> encapsulation ppp
> framing c-bit (also tried m13)
> cablelength 50
> dsu bandwidth 44210
> dsu mode 1 (also tried dsu mode 0)
> clock source line
>
>in rtrb I have a kentrox SMDSU configured like this;
>
>DSU mode
>CLK:I (internal timing, should provide clock on the DS3)
>access class 5 (does this matter ?)
>HSSI port active
>Framing C-BIT (also tried M13)
>Low power transmit
>no recv eq
>CRC 16
>
>the HSSI interface on this box looks like this;
>
>interface Hssi0/0
> description null DS3 to rtra-s1-0
> ip address 192.168.0.2 255.255.255.252
> no ip directed-broadcast
> encapsulation ppp
>
>Carrier has always been up, line protocol never comes up, and I can only
>see output on the interface of both sides. I tried reversing the coax and
>running a few local loop tests to see if perhaps I have a bad peice of
>cable .. no dice.. same thing.
>
>any ideas ?
>
>-Kevin
>
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