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I have a 2600 with a Primary Rate ISDN module. I want to do a "load
test" to see that I am getting 2mb/sec throughput. Has anyone a
suggestion as to how I can achieve this? A PING would be easiest
approach I guess - if I establish a PING with a particular packet size
and see all the channels come up, is that an indication that I am
using the full bandwidth of the circuit? What response time should I
expect from the PING ? is there any other approach I can use?
TIA, Ned

Ned Trilby wrote:
> I have a 2600 with a Primary Rate ISDN module. I want to do a "load
> test" to see that I am getting 2mb/sec throughput. Has anyone a
> suggestion as to how I can achieve this? A PING would be easiest
> approach I guess - if I establish a PING with a particular packet size
> and see all the channels come up, is that an indication that I am
> using the full bandwidth of the circuit? What response time should I
> expect from the PING ? is there any other approach I can use?
> TIA, Ned

I think qCheck from Ixia
http://www.ixiacom.com/datasheets/pr...key=pa_q_check
may be a better solution for throughput testing. However, with E1 PRI
you will not see 2mb. You must account for 1 channel being used for
signalling at the PRI level. Then you have another protocol running
between each 64k or 56k circuit and IP. This would be either ppp or
hdlc. Also, with most performance tests, you will have a combination of
ip, udp/tcp headers. Are all channels always going to the same
destination? If so, E1 PRI may not be an efficient method for
connectivity. As far as ping rate, that depends not only on throughput,
but also latency so there is now real way to answer that question
without knowing a lot about the telco infrastructure that is being used
and a lot of calculation.

In article < >,
says...
> I have a 2600 with a Primary Rate ISDN module. I want to do a "load
> test" to see that I am getting 2mb/sec throughput. Has anyone a
> suggestion as to how I can achieve this? A PING would be easiest
> approach I guess - if I establish a PING with a particular packet size
> and see all the channels come up, is that an indication that I am
> using the full bandwidth of the circuit? What response time should I
> expect from the PING ? is there any other approach I can use?
> TIA, Ned


There are a lot of tools you can use.. There's ttcp (built into
enterprise IOS versions or standalone program), netperf, smokeping,
etc.etc.

--

hsb

"Somehow I imagined this experience would be more rewarding" Calvin
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