drop packets

[tonyktone]

Hi all,

Situation:
I have a DS3 line between two buildings, that's been running cleanly for the past 5 years. During the past two months, whenever tremdous packets goes over the line, the line starts to drop, in order works I get a reply then request time out. This could last up to 10 minutes, then as soon as the burst of traffic stabilize, it's fine again.

I was just wondering what troubleshooting step I could take to tackle this problem. I look at the logs on the router\switch, but nothing indicate a problem.
Could a buffer overflow cause this problem?

Just to let you guys know, we have 3com equipment. I know this is for CISCO.
But I'm not getting a feedback on the 3COM site.

I'm getting desperate, any suggestions would be great.

Also could any one suggest any freeware(healthcare facility no$$$) that I could use to atleast find out who's causing the burst of traffic, and isolate it until I figure out what's going on.

Thanks again for any input.

 

[liuahpp]

there maybe a lots of reason!
when Ds3 line starts to drop in a day?
the most likely reason is your cable or interface has physical problem ,the equipments may be imperfect earth!