One totally off the wall thought, how's the virus/malware/spyware scanning set 
up on each end - maybe someone is doing an on access scan while another client 
isn't, causing the different response times when opening up network connections 
and looking at those file systems/directories?

This may be totally unrelated, but I did some searching as we had some slow 
response issues a while ago and it ended up being some differences between NTLM 
versions in 2000, 2003, NT, Vista, XP, etc.  We had to modify some of the parms.

Anyway, these links are just some reads about this stuff and may give you some 
insight as to the trace you should see and traffic flow when trying to do a dfs 
browse, etc...


W2k Startup and logon traffic Analysis
http://technet.microsoft.com/en-us/library/bb742590.aspx
 
 
Use of CNAME records for availability in DFS / Offline Files Integration
http://blogs.technet.com/thenetworker/default.aspx


File Session Traffic
http://technet.microsoft.com/en-us/library/cc749905.aspx

Anyway some good reading fo ryou...

Don K



________________________________
From: Russ <[email protected]>
To: NT System Admin Issues <[email protected]>
Sent: Friday, July 10, 2009 12:32:37 PM
Subject: RE: Slow DFS connections for windows xp users (and windows 2003)



I meant this to go to the list, but replied back to someone directly by 
mistake...If anyone has any ideas, I'd love to hear about it!



I actually have found that what I posted earlier doesn't really seem to have 
anything to do with anything. (It does happen just when you are browsing SMB, 
so it appears to be unrelated). However, I did get a capture where I had an 
established connection to a share using the DFS namespace (and just to clarify, 
I only have one DFS root server in this case, and I am browsing a share that 
only has one DFS target -- we are not replicating at this time)

I started my capture, and then double-clicked on a folder -- I just got an hour 
glass, and then approximately 10 seconds later, the folder opened up. There 
were no packets in or out to either the target or the DFS root outside of the 
ICMP packets I was continuously sending during this time. The first packet 
captured was a "Tree disconnect request" to the DFS root from my machine, 
followed immediately by a "Tree Disconnect response" from the DFS root. So it 
looks like my machine was waiting for something during that period?? 

I don't know . .. at this point we are reluctant to roll DFS namespace further 
because of this weird slowness issue...


Thanks, Russ


      
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

Reply via email to