Solved

Slow ping response on Windows 2008 Domain Controllers

Posted on 2010-11-23
2
940 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
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

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Scenario:  You do full backups to a internal hard drive in either product (SBS or Server 2008).  All goes well for a very long time.  One day, backups begin to fail with a message that the disk is full.  Your disk contains many, many more backups th…
A safe way to clean winsxs folder from your windows server 2008 R2 editions
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…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

713 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