troubleshooting Question

Network congestion at about 22 minute intervals. Cause?

Avatar of Bobby Ashton
Bobby AshtonFlag for United States of America asked on
Printers and ScannersCiscoNetworking
5 Comments4 Solutions139 ViewsLast Modified:
We have a network segment that every 22 minutes approximately gets very congested for about 10 seconds or so, causing various apps to get disconnected.  We have a multiple vlan environment and only one vlan is affected.  We believe it is being flooded with UDP packets.  The switches  are Cisco with all ports running 100 or gigabit speeds.  We have about 4 servers, about 40 PC's, 7 or 8 printers, and three copiers on that segment.  We usually see the issue on our network by an app that displays on a large monitor that is running on one of the PC's.  The app connects to the internet and displays real-time information.  What happens is there is a notification that the  app has lost it's connection to the internet server.  Other apps are affected at the same time.  We have verified that other lan segments are not affected and the Internet connection for the affected vlan is on another segment.  We need to know how to trace the source of the information.  We have removed the servers and a number of the workstations for a period of time with no change in the issue.


Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 4 Answers and 5 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 4 Answers and 5 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros