We are seeing slow file transfers from EMC to the end XP stations after enabling MLS QOS on the access layer 3750 12.2(25)SEE3. I believe the EMC Celerra runs Linux and utilizes Samba for file sharing. I ran across an earlier post.
Turning off QOS fixes the issue. Additionally none of the Windows 2000/2003 servers are having this issue, with the exception of the new Dell servers with Integrated Broadcom BCM5708C NetXtreme II, with TOE offload enabled. With QOS on and TOE on, transfer is slow on the new Dell Servers. If I disable either QOS or TOE, then the speed returns. I have measured with IXIA Chariot and see 95MB (on a Fast Ethernet port) when all is well, and 800k when the speed is slow.
Has anyone ran across this or something similar?