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From: Daniel Cotts
To: 'Shawn Goodson' ;
Sent: Thursday, May 31, 2001 6:54 AM
Subject: RE: latency in a lab scenario [7:6453]
Did this connection reqire any special cables or configuration? It appears
to use standard V.35 DTE cables. Where does the line clocking come from?
TIA
There was an earlier post that described East Coast Datacom's Router Delay
Simulator. We have been using the RDS in our lab to provide latency and
bandwidth constraints between endpoints. The box has worked great and the
pricing wasn't bad.
http://www.ecdata.com/rds/rds.htm
]
Subject: Re: latency in a lab scenario [7:6453]
There was an earlier post that described East Coast Datacom's
Router Delay
Simulator. We have been using the RDS in our lab to provide
latency and
bandwidth constraints between endpoints. The box has worked
great and the
pricing wasn't bad
If your routers are connected serially, lower the clockrate on the DCE
interface to the desired speed. If you want to introduce variable
latency, I'd have to think about it for a bit. A simple way would be to
do FTP transfers or large extended pings from time to time to simulate
traffic.
Several companies make boxes that create latency in a serial link. The
really neat ones can also induce jitter, packet drops, and other likely line
faults. An affordable one is:
http://www.ecdata.com/rds/rds.htm
FWIW The manufacturer sells at list price. Some time after inquiring with
them an
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