[OpenAFS] 1.7.3 Windows 7 client explorer window delay

John W. Sopko Jr. sopko@cs.unc.edu
Tue, 20 Dec 2011 08:02:57 -0500

I have been out of town, thus the reply delay. I had openafs 1.5.x installed, 
my lmhosts file looks like this:	AFS	#PRE

Note I had removed the loopback interface in Device Manger after I did
the upgrade to 1.7.3 . Also I have 2 additional 10.x.x.x IP aliases on the 
interface that I use to manage various devices. I get no timeout in other
network shares.

When we get a chance we will try another machine with a single IP address.

Jeffrey Altman wrote, On 12/16/2011 10:57 AM:
> If you install WireShark and watch the network traffic on the machine I
> suspect that you will find that the delay is being caused by the Microsoft Lan
> Manager (SMB) network provider.  It issues an NBNS Name query for "AFS <20>"
> and then a DNS query for "afs.<search-domain>".  If it gets a response to
> either it then attempts an ICMP ping to the resulting address and an NBNS
> NBSTAT query.  Only after the LanMan provider times out does it report failure
> and it retries this sequence for every request.
> Adding a fake "AFS" entry to the %windir%\system32\drivers\etc\LMHOSTS file
> prevents the NBNS Name queries for "AFS <20>" from being sent.   At the
> present time, the OpenAFS installer only creates such an entry as part of
> installing the Microsoft Loopback Adapter which is not installed by default
> now that the afs redirector driver is available.
> Jeffrey Altman

John W. Sopko Jr.               University of North Carolina
email: sopko AT cs.unc.edu      Computer Science Dept., CB 3175
Phone: 919-962-1844             Fred Brooks Building; Room 140
Fax:   919-962-1799             Chapel Hill, NC 27599-3175