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тАО06-03-2004 05:34 AM
тАО06-03-2004 05:34 AM
Network "Pausing"
One such system is our DS20 running 5.1B with a DEC NIC. The users (and myself) have noticed one to three second pauses, but not disconnects. We have a second tu that I'm going to configure later today to isolate the problem. There are some errors on the interface but an extremely low percentage compared to the ammount of data transfered.
I have used lan_config and hwmgr to set and confirm that the interface is 100 Full Duplex. Also have set the same parameters on the switch side ( which is a 2650-PWR btw) I was going to throw this out in the Procurve groups as well but will wait until I confirm that the problem lies outside the DS20.
input (tu0) output input (Total) output
packets errs packets errs colls packets errs packets errs colls
265822730 2 366470756 125 79462625 266953555 2 367601581 125 79462625
32 0 14 0 0 32 0 14 0 0
27 0 14 0 0 27 0 14 0 0
20 0 5 0 0 20 0 5 0 0
Some samples from netstat -I above.
Tyler.
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тАО06-03-2004 06:11 AM
тАО06-03-2004 06:11 AM
Re: Network "Pausing"
It would be something like:
>>>set eia0_mode FastFD
Vic
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тАО06-03-2004 06:22 AM
тАО06-03-2004 06:22 AM
Re: Network "Pausing"
the Tulip chipset doesn't work well with all switches, as seen by your netstat output there are collisions which are totally unusual if using "full duplex mode".
So set the interface on console mode to "fast" and the switch port to "half duplex". See if problem is gone if so try to setup "full duplex" on both sides (fastfd on console mode). If it doesn't work go back to half duplex....
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тАО06-03-2004 06:30 AM
тАО06-03-2004 06:30 AM
Re: Network "Pausing"
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тАО06-03-2004 10:18 AM
тАО06-03-2004 10:18 AM
Re: Network "Pausing"
10mbit is also available with half oder full duplex so be more specific or we compares different things not seeing the solution!
It is important, that you have changed the console variable and verified switch settings and have executed the "init" command prior to boot the system. The switch must be set to the same speed (due to point ot point).
Next step will be to check the network setup. Post the output of:
# ifconfig -a
# netstat -i
# consvar -g ewa0_mode
(depending on pos. of adapter, else ewb0)
Verify logfiles of switch and boot messages of tulip chips (/var/adm/messages). Be sure no "store forward" or DMA messages appears and ports are set to "fast" mode on switch.
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тАО06-03-2004 10:23 AM
тАО06-03-2004 10:23 AM
Re: Network "Pausing"
Thanks everyone for the great advice.