Description of problem:
RHEL 3.0 v2.4.21 is dropping frames when reaching 70 MB on the link.
The 3Com 3C996-SX with BCM5700 v7.1.22 driver  has been tried and an 
Intel long wave gigabit ethernet card has also been used to confirm 
the frame drops.

There are no messages in /var/log/messages that indicated that the 
frame(s) being dropped unless we missed them.   We couldn't find any 
TCP dropped frames or frame retransmissions in /proc interfaces 
either, but we know for sure that the frame being dropped from 
analyzing the iSCSI trace captured with the Analyzer. 
 
For FTP has been used as a test to just simply transfer a big file in 
binary mode.
The iSCSI driver is the Cisco based iSCSI driver version 3.4.0.0 (the 
latest driver for 2.4.x kernel).


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