Hi,
Here is our situation. We are on the YNHH network and we connecting
to the Yale network to use some DFS drives that are needed for Oracle
access at Yale.
YNHH has its own Pix firewall and Yale too. There is a router that
connects the two network. So, to get to the DFS drives the packets
has to go through two firewalls and minimum one router, not counting
switches and other network devices.
PC users - Windows XP Professional with SP3 - are loging into the Yale
domain and are mounting these drives - O, N, T - with a script. The
script is launched by selecting an item from the YAMS menu - YAMS=
Yale Administrative Menu System :-)
As soon as the drives are mounted the users are experiencing a "slow
down" of their machines, like opening a document takes 15 seconds
instead of almost 0 seconds, etc. As soon as they disconnect the DFS
drives, the machines are regaining their speed and vigor.
I attach here a short capture file. that was made by using a
professional sniffer program. I am able to open it with Wireshark.
It was made during a "slow down" phase.
These PC users are been counters, so they MUST connect to these drives
all the time, however if they do so, their PC is useless.
The following things were done:
- The Cisco switch, where the PCs are connected, firmware and IOS was
upgraded to current level. Had no effect.
- All DFS drives in the PATh environment variable of the PCs were
positioned to the end, with that thought, that whatever files are
needed look forst into the local directories.
- All MS desired RPC ports are open on both firewalls.
What do you think the problem is ??
Thanks ahead,
János
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