[18294] in North American Network Operators' Group
Re: T1 Circuit actual throughput 1290Kbps
daemon@ATHENA.MIT.EDU (Bruce Robertson)
Thu Jul 9 12:32:40 1998
To: tonyh@noc.cbn.net.id
cc: nanog@merit.edu
In-reply-to: Your message of "Thu, 09 Jul 1998 10:44:26 +0700."
<19980709034534.AAA1627@wolfpack>
Date: Wed, 08 Jul 1998 21:16:50 -0700
From: Bruce Robertson <bruce@greatbasin.net>
>>>>> "Tony" == Tony S Hariman <tonyh@noc.cbn.net.id> writes:
Tony> You have a 1.536Mbps port. However, there is the overhead
Tony> from PPP and the translation overhead which takes place in
Tony> all circuits.
Further comments... translation overhead affects *latency*, not
*throughput*. Overhead in the circuit may delay the leading edge of
the bits, but it does not affect the bit rate. PPP framing overhead
is close to negligible, and certainly does not account for the missing
246 Kb/s.
--
Bruce Robertson, President/CEO +1-702-348-7299
Great Basin Internet Services, Inc. fax: +1-702-348-9412
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