Solved

What does this log mean?

Posted on 2009-03-31
4
355 Views
Last Modified: 2012-05-06
3/31/2009 5:55:07 AM c4507r_core Warning 318: 000702: Host 00:50:56:84:15:3F in vlan 1 is flapping between port Gi4/4 and port Gi3/11

3/31/2009 12:05:48 AM c4507r_core Warning 266: 000650: Host 00:50:56:84:15:3F in vlan 1 is flapping between port Gi3/11 and port Gi3/7

I know what flapping is, but why would it be reported like it is above (i.e.: Flapping between port x and port y).  We have servers plugged into these ports
0
Comment
Question by:dissolved
  • 2
  • 2
4 Comments
 
LVL 43

Accepted Solution

by:
JFrederick29 earned 500 total points
Comment Utility
Do you have NIC teaming setup on the servers?  If so, you can see this if the NIC is doing load balancing instead of "fail on fault".  Verify the NIC teaming configuration is set to "fail on fault".
0
 

Author Comment

by:dissolved
Comment Utility
yea the nics are set to team.  So I want it to fail on fault correct? Not load balance?
0
 
LVL 43

Expert Comment

by:JFrederick29
Comment Utility
Yes, correct, fail on fault.  Only use load balance when you have an etherchannel connection with the switch.
0
 

Author Closing Comment

by:dissolved
Comment Utility
thanks
0

Featured Post

Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

Join & Write a Comment

Suggested Solutions

I see many questions here on Experts Exchange regarding switch port configurations and trunks. This article is meant for beginners in the subject to help to get basic knowledge about Virtual Local Area Network (VLAN (http://en.wikipedia.org/wiki/Vir…
This tutorial will go through the steps required to write a script that will back up the configuration settings of a HP-ProCurve switch. You will need to get the following things to follow this tutorial: Telnet Scripting Tool e.g. TST10.exe …
It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now