i've had similar with WAN connections where I can't install
software at either endpoint, only on my end, so was looking for a way to
troubleshoot/analyse the connection.
what you suggest in B) is done by a handy windows app
called pingplotter (www.pingplotter.com). it pings the
endpoint every x (configurable) seconds and stores all the data so you can
review it in graphical format, and see rtt over time, which hop packets are
failing at (if they are). if yours is a single hop at least it can record the
rtt over a period of time so you can see any degradation/issues. i'd
imagine in theory wireshark could do some/all of it for you, but i'm not sure
it'd be easy to get the data out. you can try this app for free on 2 windows
boxes at either end of your long link and the website is pretty
helpful...
good luck!
gd
I could use some hints.
I have a single link between host router/switches and host with several miles
between the routers (fiber optic). This is TCP/IP data. I'd like to measure or
analyze the quality of the link. I could mirror a port with Wireshark on each
router for both ends.
After reviewing Wireshark some notions I had are:
A) Checksum: Run applications from host, capture all data and analyse
captured data at far end for "Checksum" errors to create a close estimate of Bit
Error Rate by counting total packets to packets w/Checksum errors. This with
checksum offloading off.
B) Round Trip Time (RTT): Send continuous ping from host, capture lots of
data and analyze RTT times. I could do this by exporting data and using a
spreadsheet to analyze. Does Wireshark do this already? It doesnt look like the
Service Response Time feature would do this.
Any thought would be greatly appreciated
.
