Solved

Slow ping response on Windows 2008 Domain Controllers

Posted on 2010-11-23
2
948 Views
Last Modified: 2012-05-10
Our domain consists of 2 Windows 2008 domain controllers, along with a number of member servers.
It has been noticed that when either DC is pinged the response time varies between <1ms and often > 100 ms (average ~ 50ms). This is consistent pinging back from the DC to the original host.
To minimize the network tests were performed between servers ( ie DC + member server) connected to the same 1Gb switch.

Other things to note;
- Performing a ping on either DC to itself indicates <1ms consistently
- DC performance has been checked throughout pinging - no problems observed
- the DC firewall has been switched off (no change)
- one of the DC's is virtualized - other VM's do not exhibit the same random response times.

The random response times only appear when the ping traverses the network, leading to questions about NIC config etc. However, as this ONLY appears to affect the DC's, and one of those (VM) shares NIC's with other VM's that do not have this problem it seems that the NIC may not be the root cause.

Has anyone witnessed this phenomenon or know of any tests/fixes?
0
Comment
Question by:agradmin
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 11

Accepted Solution

by:
Ove earned 500 total points
ID: 34287597
tried running Wireshark (Portable) to watch network-traffic on the dc-nic ?

Ove
0
 

Author Closing Comment

by:agradmin
ID: 34664817
I haven't had teh chance to try this yet but as it's the only solution offered and in teh interest of closing this expiered question it gets the points.
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I had a question today where the user wanted to know how to delete an SSL Certificate, so I thought that I would quickly add this How to! Article for your reference. WHY WOULD YOU WANT TO DELETE A CERTIFICATE? 1. If an incorrect certificate was …
Possible fixes for Windows 7 and Windows Server 2008 updating problem. Solutions mentioned are from Microsoft themselves. I started a case with them from our Microsoft Silver Partner option to open a case and get direct support from Microsoft. If s…
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

751 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