[18291] in North American Network Operators' Group
Re: T1 Circuit actual throughput 1290Kbps
daemon@ATHENA.MIT.EDU (James Carlson)
Thu Jul 9 11:58:15 1998
To: nanog@merit.edu
From: James Carlson <carlson@ironbridgenetworks.com>
Date: 09 Jul 1998 08:26:18 -0400
ferguson@cisco.com (Paul Ferguson) writes:
> It also depends on whether the line encoding is AMI or
> B8ZS. If it is AMI, you'll start out with 1340k, not
> 1536k, if I'm not mistaken.
AMI with 24 channels is 1344000bps (56000 by 24). (A continuing
crisis with many LECs is that data links are set up as AMI/D4, when
there's usually no reason not to run B8ZS/ESF. When our drop was put
in, the technician installed the B8ZS/ESF line, then proceeded to
configure the CSU/DSU for AMI/D4. Sigh.)
--
James Carlson, Consulting S/W Engineer <carlson@ironbridgenetworks.com>
IronBridge Networks / 55 Hayden Avenue 71.246W Vox: +1 781 402 8032
Lexington MA 02421-7996 / USA 42.423N Fax: +1 781 402 8092
"PPP Design and Debugging" --- http://people.ne.mediaone.net/carlson/ppp
