[Beowulf] SMC 8524T jumbo frame problems
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Chris Samuel csamuel at vpac.orgTue Sep 28 16:24:59 PDT 2004
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Hi folks, We've recently picked up a number of SMC 8524T 24-port gig switches to build a separate pan-cluster network for filesystem I/O because all the blurb we can find says that they support jumbo frames. However, although our IBM x335 nodes (BCM5703 adapters and bcm5700 drivers) can happily talk to each other with an MTU of 9000 when connected via a crossover cable, once we plug them into the switch any MTU in excess of 1500 results in no communication according to tracepath. :-( Anyone here got any experience with these and any pointers to what we might be missing ? We are going to chase this with the suppliers as well seperately. cheers, Chris -- Christopher Samuel - (03)9925 4751 - VPAC Systems & Network Admin Victorian Partnership for Advanced Computing http://www.vpac.org/ Bldg 91, 110 Victoria Street, Carlton South, VIC 3053, Australia -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : http://www.scyld.com/pipermail/beowulf/attachments/20040929/5b442ecc/attachment.bin
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