Re: Anyone providing T1 Service via Muxed DS3's in Verizon area

Raymond Bonkowski wrote:
> OK, when ordering the Muxed DS3 from Verizon, what configuration is typically used to work with the Cisco PA-MC-T3. It seems they configured mine for AMI ESF.
>
> Should it have been one of the other 7 options like AMI SF, B8ZS ES, B8ZS SF, C bit Parity, D4 AMI, Non ANSI ESF or Non ANSI ESF B8ZS ?
>
> Here is where I am at. I can do a loop back to the DS3 hand off error free and they say the can do a loop back to that same handoff error free. I see the two T1's I have conigured in the field go up, but I never see the T3 go up. They say that they see no framing from me and I get a receive alarm saying loss of receiver.

The DS3 controller itself is typically configured M13 (may show as M23
in Cisco configuration) and is clocked from the line. Individual T1
circuits within it for data use are usually ESF/B8ZS, but this can be
different for each T1. Verizon in some areas and under some
circumstances charges more on a monthly basis for "clear channel"
B8ZS/ESF than for D4/AMI T1 loops. D4/AMI will reduce the data
throughput, not recommended for data.

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay@impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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