Link to home
Start Free TrialLog in
Avatar of SavalFoods
SavalFoods

asked on

How do I check my Dell PowerConnect switches for internal latency?

I'd recently filed a support request with WatchGuard regarding my server.  Support has stated the following:

Finally, I am seeing alot of the following types of log messages.
2009-07-09 10:03:22 Deny 10.0.0.247 85.89.128.71 60941/tcp 25 60941 1-Internal unknown TCP RST packet without an associated connection, firewall drop 40 128 (internal policy) tcpinfo="offset 5 R 270263463 win 0" rc="104" Traffic
This generally means there is some sort of internal network latency causing packets to arrive out of order to the firebox.
You may want to check your switches for any broadcast storms etc, that may cause internal network latency.

My question:  How exactly do I check my network for broadcast storms that may cause internal network latency?
SOLUTION
Avatar of astrochimp
astrochimp
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
ASKER CERTIFIED SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of SavalFoods
SavalFoods

ASKER

@astrochimp - I've used Ethereal before, in the past, but not really touched Wireshark up to this point.  Thanks for the jumpstart with that software again.

@uetian1707 - WOW!  I've used this switches for so long, and I'd never heard of port mirroring before!  Thank you!  I really appreciate the information.