Re: msl_test

Alex Rousskov <[email protected]>
Newsgroups gmane.comp.web.web-polygraph.user
Message-ID <Pine.BSF.4.10.10009261607060.53944-100000@measurement-factory.com>
On Tue, 26 Sep 2000, Xu, Zhonghui wrote:

> 
> I started  the command below:
> 
> #msl_test -i fxp1 -s 10.100.1.1 -d 10.100.100.1 -p 8080
> [got]:
> Determing MSL of 10.100.100.1 ......
> 
> It never exited. 

It should at least display one more line indicating that SYN packet has
been sent.

> I checked that ping was working, netserver was running, /dev/bpf0
> was in place and none of tcpdump/dhcpd was alive.  Does anyone have
> any clues?

A few things to check:

	- Make sure that a Web server or proxy are listening
	  on 10.100.100.1:8080; use telnet to that address:port
	  to verify

	- During the test, msl_test creates a black hole for
	  10.100.100.1; make sure you are not logged in to
	  10.100.1.1 from 10.100.100.1. (See msl_test Web page
	  for details)

	- Create another BPF device (if needed) and start a tcpdump on
	  fxp1 to monitor the traffic that msl_test generates; if
	  possible, run a tcpdump on 10.100.100.1 as well
	  send us relevant details if still in trouble

FWIW, we have used msl_test during the third cache-off with no problems,
including the tests for routed and transparent configurations.

Alex.
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