nanog mailing list archives
Re: T1 Circuit actual throughput 1290Kbps
From: Nathan Stratton <nathan () skipper robotics net>
Date: Thu, 9 Jul 1998 00:30:50 -0400 (EDT)
On Thu, 9 Jul 1998, Tony S. Hariman wrote:
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 ?
Oh, around 1536 :-)
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.
Hehe, find a new ISP. There is some overhead with PPP, but it is not close to that amount. Most likely your ISP does not have the bandwidth to deliver all of your bandwidth.
Thank you for your help.
No problem.
<>
Nathan Stratton Telecom & ISP Consulting www.robotics.net nathan () robotics net
Tony S. Hariman http://www.tsh.or.id Tel: +62(21)574-2488 tonyha () compuserve com
Current thread:
- T1 Circuit actual throughput 1290Kbps Tony S. Hariman (Jul 08)
- Re: T1 Circuit actual throughput 1290Kbps Patrick W. Gilmore (Jul 08)
- Re: T1 Circuit actual throughput 1290Kbps Jose Dominguez (Jul 09)
- Re: T1 Circuit actual throughput 1290Kbps Vincent Poy (Jul 10)
- Re: T1 Circuit actual throughput 1290Kbps Mark Milhollan (Jul 10)
- Re: T1 Circuit actual throughput 1290Kbps James Carlson (Jul 10)
- Re: T1 Circuit actual throughput 1290Kbps Jose Dominguez (Jul 09)
- Re: T1 Circuit actual throughput 1290Kbps Nathan Stratton (Jul 08)
- Re: T1 Circuit actual throughput 1290Kbps Lincoln Dale (Jul 08)
- Re: T1 Circuit actual throughput 1290Kbps Dorian Kim (Jul 08)
- Re: T1 Circuit actual throughput 1290Kbps Brett Frankenberger (Jul 09)
- Re: T1 Circuit actual throughput 1290Kbps Robert E. Seastrom (Jul 09)
- Re: T1 Circuit actual throughput 1290Kbps Robert E. Seastrom (Jul 09)
- Re: T1 Circuit actual throughput 1290Kbps Brett Frankenberger (Jul 12)
- Re: T1 Circuit actual throughput 1290Kbps Dorian Kim (Jul 08)
- Re: T1 Circuit actual throughput 1290Kbps Patrick W. Gilmore (Jul 08)
- Re: T1 Circuit actual throughput 1290Kbps James Carlson (Jul 09)