trace on atm card

[Eric Guerizec]

Thanks Greg
Now, I can have some atm traces.
But the DBA would want to see TDS packets.
TDS is the protocol used by Sybase and enclosed in tcp packets.
Is it possbile to collect only TDS data?

[Gregory Jones_2 · Accepted solution]

Eric,

What we can do is filter on the ports involved, which
will allow us to watch the "to or from" action.

Create a filter file and append:

filter tcp_sport XXX1 *
filter tcp_dport XXX1
filter tcp_sport XXX2
filter tcp_dport XXX2

* Not sure which ports in use, but you would put the correct number here.

You then format as follows:

netfmt -c filter -Nnlf raw0.TRC0 > fmt0

I suspect that Sybase is using a TDS trace, so we can use this along with the nettl
formatted output to see what is happening between the two at that moment.

greg