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тАО07-25-2010 12:31 AM
тАО07-25-2010 12:31 AM
Linux with 10 GB network cards
Network connectivity is not stable - getting disconnected, threw is slow, hangs.
OS - Linux
Using bonding with two 10 Gb cards.(HP NC510C PCIe 10 Gigabit Server Adapter)
Server Details HP DL580G5 E7330 2X3M 2P 4G EU Svr GB8842603E
Connectivity CX4
Network - HP procurve. with J8702A Modules.
Now
I want to test the threw, by connecting two servers directly with a cable.
how can test test it?
can i use the same cable for connecting the saervers ?
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тАО07-25-2010 08:50 PM
тАО07-25-2010 08:50 PM
Re: Linux with 10 GB network cards
check also the router or switch connected to it.
If your network is based on 1 GB than 10 GB will not be used. You may set "Autonegociation On" in your router or switch.
Or, finally you may consult with HP.
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тАО07-26-2010 01:37 AM
тАО07-26-2010 01:37 AM
Re: Linux with 10 GB network cards
If you can post a "show tech all" fromt he Procurve it would be good :). I know it might not be possible.
Another quick suggestion, on the CX4 cable there is latches, be sure they are engaged, that is one of the fun things about CX4 if those are not clipped in, the cables is very vulnerable to slight bumps causing connection glitches.
HTH
Gerhard
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тАО07-26-2010 05:43 AM
тАО07-26-2010 05:43 AM
Re: Linux with 10 GB network cards
Slow network throughput may be due to a bug in the current bnx2x driver as detailed in Red Hat knowledgebase article 36394.
https://access.redhat.com/kb/docs/DOC-36394
The work around is to put this into /etc/modprobe.conf
options bnx2x disable_tpa=1
That said, I haven't checked whether the NC510C is a Broadcom card...
Cheers,
Rob
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тАО07-26-2010 06:33 AM
тАО07-26-2010 06:33 AM
Re: Linux with 10 GB network cards
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тАО07-26-2010 07:54 AM
тАО07-26-2010 07:54 AM
Re: Linux with 10 GB network cards
For your questions Yes you can just use the same cable :).
HTH
Gerhard
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тАО07-26-2010 08:03 AM
тАО07-26-2010 08:03 AM
Re: Linux with 10 GB network cards
The workaround (pending an errata fix) should adderss your issue.
Please try it.
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тАО09-04-2010 09:36 AM
тАО09-04-2010 09:36 AM
Re: Linux with 10 GB network cards
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тАО09-06-2010 01:32 AM
тАО09-06-2010 01:32 AM
Re: Linux with 10 GB network cards
Please give me output of the command
#vi /proc/net/bonding/bond0
i guess one of your ethernet port is intermittently going down and hence slowing down the network
Regards,
Abushad