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тАО03-23-2006 12:05 AM
тАО03-23-2006 12:05 AM
ProCurve 2708 and Gigabit NIC stalling
The cluster is connected using:
Gigabit NIC in each
ProCurve 2708 switch
We've been unable to get this working properly - it only seems to work for a very short while and then stalls.
Has anyone else had any problems configuring this?
We're hoping to try the kit out on a test system in the UK shortly.
In the meantime, any advice/experience would be most welcome...
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тАО03-23-2006 12:11 AM
тАО03-23-2006 12:11 AM
Re: ProCurve 2708 and Gigabit NIC stalling
what do you mean with 'stalls' ?
Does the cluster hang ? Any messages on the console regarding the LAN driver and possible duplex mismatch ? Does auto-negotiation work or are both (LAN NIC and switch-port) set to the same speed and duplex mode ?
Volker.
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тАО03-23-2006 12:37 AM
тАО03-23-2006 12:37 AM
Re: ProCurve 2708 and Gigabit NIC stalling
No messages.
We have set auto on both consoles.
The switch defaults to auto and has no management interface.
It did work once for 10 minutes, and then it hung.
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тАО03-23-2006 12:47 AM
тАО03-23-2006 12:47 AM
Re: ProCurve 2708 and Gigabit NIC stalling
the systems in the cluster constantly communicate via all LAN interfaces by sending SCS HELLO multicast messages every 3 seconds. Each system in the cluster would output a 'Lost connection to node' message, if it does not receive a HELLO message from the other node within about 9 seconds.
Is BROADCAST enabled on the console terminals ? $ SHOW BROADCAST ? If not, you have to enable it, to see those messages !
You could force a crash, if the cluster seems to hang: Press HALT button, then >>> CRASH
In the crash, you could check LAN counters etc. How do you determine, that the cluster 'hangs' ?
Volker.
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тАО03-23-2006 01:00 AM
тАО03-23-2006 01:00 AM
Re: ProCurve 2708 and Gigabit NIC stalling
[I believe they have now reverted to the previous hardware.]
It seems to be a problem that is specific to the particular switch and NICs.
Unfortunately, we can't run any more tests until we get access to the test systems in the UK.
In the meantime, we were hoping that someone might have come across a similar problem with that specific hardware.
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тАО03-23-2006 01:30 AM
тАО03-23-2006 01:30 AM
Re: ProCurve 2708 and Gigabit NIC stalling
Allan in Atlanta
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тАО03-23-2006 03:11 AM
тАО03-23-2006 03:11 AM
Re: ProCurve 2708 and Gigabit NIC stalling
HP describe it as:
Unmanaged: provides plug-and-play simplicity
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тАО03-23-2006 06:51 PM
тАО03-23-2006 06:51 PM
Re: ProCurve 2708 and Gigabit NIC stalling
Unmanaged: plug-and-pray stupidity
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тАО03-23-2006 08:18 PM
тАО03-23-2006 08:18 PM
Re: ProCurve 2708 and Gigabit NIC stalling
Which NICs are you using? Assuming they're copper then have you got the appropriate specification cables and distances for GigE over copper?
I generally use fibre and managed switches - less problems on the whole. After all, it's not cheaper to use anything else if it wastes your time and creates unreliability issues. The last thing you want in a production environment is something that doesn't work consistently and reliably.
If the systems really matter then you may want to consider dual NICs and dual switches so that you have two cluster interconnect paths. Don't forget to enable / disable the releveant protocols on all the NICs in the systems either.
Hope this help,
Cheers, Colin.
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тАО03-24-2006 02:23 AM
тАО03-24-2006 02:23 AM
Re: ProCurve 2708 and Gigabit NIC stalling
We have had issues before when having to use NICs and Switches both in autosense. They both keep changing speeds and duplex which results in dropped packets and NO communication.