North American Network Operators Group

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Re: T1 Circuit actual throughput 1290Kbps

  • From: Robert E. Seastrom
  • Date: Thu Jul 09 11:14:17 1998

   From: "Robert E. Seastrom" <[email protected]>

   Precisely.  The most likely explanation is that the T1 is actually D4

uh, my wrong...  it's the AMI not the D4 that causes the big hit.  of
course, as a matter of course, D4/AMI and ESF/B8ZS go together and you
never see combinations like D4/B8ZS...  which, in answer to the fellow
who asked, is why you can't just invert the data on the HDLC and run
it down the line and get your 12%  back...  HDLC is layer 2, whilst
framing is layer 1...