[18275] in North American Network Operators' Group
T1 Circuit actual throughput 1290Kbps
daemon@ATHENA.MIT.EDU (Tony S. Hariman)
Wed Jul 8 23:57:58 1998
From: tonyh@noc.cbn.net.id (Tony S. Hariman)
To: nanog@merit.edu
Date: Thu, 9 Jul 1998 10:44:26 +0700
Reply-to: tonyh@noc.cbn.net.id
Does anybody have experience having a T1 circuit with PPP
encapsulation getting only 1290 Kbps maximum throughput looking
at "sh int" result from cisco router or MRTG ?
This is the explanation our upstream provider gave us:
You have a 1.536Mbps port. However, there is the overhead from
PPP and the translation overhead which takes place in all circuits.
Judging by your settings that limit ends up somewhere between
1.3 and 1.4. This overhead would be the non-data portion of cells
or frames for example. For example, you might have 1.3 Mbps of
data which gets framing or cell information appended onto it before
sending taking up additional bandwidth. It is to be expected in all
circuits.
Thank you for your help.
Tony S. Hariman
http://www.tsh.or.id
Tel: +62(21)574-2488
tonyha@compuserve.com
