Hi,
Is there any difference in handling packet queues with ALTQ if the network card
is
a Gigabit fiber network interface and a Gigabit Ethernet network interface with
the
same driver? For example (em) driver for Intel-based cards. I'm currently
having a
system configured with FreeBSD-6.2 RELEASE with PF and ALTQ enabled. This
host is configured first with Intel 1-Gigabit Ethernet network card and when it
receive big amount of traffic, I don't see any packet errors with netstat but
when I
switched to the 1-Gigabit fiber optic card, I could see packet errors with this
interface. A big amount of traffic were bombarded on the interface around
800Mbps.
Here's the sample packet errors received on the system with netstat.
Gigabit Intel fiber interface
-------------------------------------
# netstat -I em0 -w 1
input (em0) output
packets errs bytes packets errs bytes colls
3260 149652 2547816 0 0 0 0
3257 150026 2547756 0 0 0 0
3258 150117 2543396 1 0 42 0
3259 150181 2549320 0 0 0 0
3256 149941 2543244 0 0 0 0
3370 149871 2636122 0 0 0 0
3255 149534 2544688 0 0 0 0
3255 150077 2543966 0 0 0 0
3260 150195 2549320 0 0 0 0
3259 149603 2547816 0 0 0 0
3258 149746 2546312 0 0 0 0
3258 149855 2547756 0 0 0 0
3261 149851 2549320 0 0 0 0
3255 150414 2545410 0 0 0 0
3250 149758 2542282 0 0 0 0
3255 149842 2545410 0 0 0 0
3259 149568 2547756 0 0 0 0
3255 149943 2545502 0 0 0 0
3261 149893 2548658 0 0 0 0
3257 149581 2545530 0 0 0 0
Thank you very much!
Diego
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