There is this issue I bumped in to when I tried to upgrade to 6.10 last summer:
"With software version 6.10.0.04 and higher, a change has been made to
the ingress data buffer size of 10/100 Ethernet ports to reduce the
number of reset operations performed on these ports. A maximum of eight,
minimum-sized packets, can now be buffered at ingress on a port. The
performance impact of this change will be seen during traffic bursts. If
the traffic is UDP, there will be no dropped packets or performance
impact. If the traffic is TCP, then certain traffic types will
experience dropped packets and a slight increase in TCP retransmissions
for those packets."
Now I am also seeing the same thing in the latest versions of 5.00. I upgraded our css's to 5.00 Build 503 and 5.00 Build 605 and the "internal rx error" counter increments when I push even small amounts of traffic through with my load generators. I've installed 5.00 Build 403 and
do not see this problem. There is no acceptable workaround for the RX error issue so I am looking at 5.00 build 403 for production.
