Is this a valid IB configuration (3750E w/ X2-10GB-CX4)

Unanswered Question
Jan 3rd, 2008

I'm trying to set up a Netbackup media server which receives backup data streams from multiple Gb host links.

The idea is to aggregate these Gb streams into a 10 Gb stream using a 3750E-24TD with an X2 infiniband module. I have multiple servers plugged into the switch, which have connectivity. I have the media server (Sun T2000 with IB card) connected to the switch via the X2 CX4 (uplink), but I do not have any link indication.

Do I need to set up some special port configuration on the uplink port to use the switch like this? Are these ports auto-sensing or do I need to set them as MDI-X?

We have a ticket with Sun. The Sun engineer says this configuration works with a Sun switch, or with the Cisco SFS 3000 series. Sun does not think this will work with a 3750E.

The cable length is 5m.

Any assistance is greatly appreciated.


I have this problem too.
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James3678 Fri, 01/04/2008 - 08:08

I believe so. The version is c3750e-universalk9-mz.122-40.SE.bin

Thanks for the validation.

Anything else?

James3678 Fri, 01/11/2008 - 11:10

Apparently, the 3750E with the CX4 uplink just won't talk to an infiniband card in a server. The vendor claim is that the 3750E switch is 10GbE under 802.3ak and is not connectable to infiniband, even through they use the CX4 connector.

Live and learn.


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