Unstable network connection

At the moment I have RACK A with windows boxes connected to a cisco 2620 switch, and then an optic fibre, and then RACK B.
The optic fibre goes through a cisco firewall first, and then to a switch, and then to a network of windows machines when it hits RACK B.
When using ftp, or viewing a media stream, and sometimes even using mIRC or ICQ, the connection drops out intermittently.

If you have any ideas I would love to hear them.
LVL 1
aligmaAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Robing66066Commented:
Lots of reasons for that sort of thing, but the most common is media.

Replace your cables and see what happens.
0
chicagoanCommented:
Have you checks the error counters on your switch ports and verified speed/duplex settings?

You have a 2620 in rack A - fibre to what in rack B?
Are you using fibre-copper media adapters? whose?

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ShineOnCommented:
So,

Rack B contains the Cisco firewall, which connects to rack A via fiber?  

Meaning, Rack A doesn't REALLY connect to Rack B, but connects vi fiber to the Firewall which is part of Rack B's copper network?

Is that the correct picture?  If so, then what you are saying is that devices in the Rack B network can do all sorts of stuff without dropouts or errors, but devices on the Rack A network experience intermittend dropouts?

If that is the case, then I would specifically look at the fiber-optic link, as suggested by Robing6606 and chicagoan.  It could be in the cable itself, in the cable terminations, in the fiber-to-copper converters (if any) or in the fiber interfaces/WICs (if any.)  This does not say anything but "hardware problem" to me.
0
aligmaAuthor Commented:
We still don't know the entire problem, but chicagoan's suggestion of checking the speed & half/full duplex settings was good - it was a contributor. Thanks.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Storage Software

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.