Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello, Bart is correct. Gbps NICs do NOT need crossover cables to be connected back-to-back since they use Auto-MDIX (http://en.wikipedia.org/wiki/Auto-MDIX#Auto-MDIX <http://en.wikipedia.org/wiki/Auto-MDIX#Auto-MDIX>) Use straight Cat5e or Cat6 Ethernet cables and let the standards do the job for you. This should work like a charm (at least the network/routing/ping thing) Let us know how it went. BR T.K. On 01/-10/-28163 09:59 PM, Bart Coninckx wrote: > On Friday 24 September 2010 23:51:18 Matt Ball, IT Hardware Manager wrote: >> I have setup NIC bonding with DRBD successfully but we need to try to >> reduce the amount of switch ports required as we need to remotely deploy >> several clusters. We have 2 bonded nics, total of 4 NICs/cables plus one >> for iLo. So we have 6 that must go into the switch (3 from each cluster) >> but want to avoid having those additional cables for drbd and that bond >> going into the switch. >> >> We decided to try and connect the drbd resources together using that >> bond0 channel but using crossover cables instead of going through the >> switch. No joy. Cannot ping, no communications, destination on trace >> route shows as the 169.* hardware failure address... >> >> We have all GB NICs and the cables are GB crossover. >> >> We have tried mode-1, mode-5, and mode-6 which all claim to work without >> needing special switch configurations. >> >> Is there any way to connect a bonded NIC (trunk) and have drbd >> communicate through it? >> >> I apologize in advance if this is not appropriate for the drbd message >> board, I realize it may be outside the scope of this forum. If so please >> disregard. >> _______________________________________________ >> drbd-user mailing list >> drbd-user at lists.linbit.com >> http://lists.linbit.com/mailman/listinfo/drbd-user >> > We have this running with balance-rr. What is important, is to change tcp- > reordering, otherwise one gets poor performance. Gigabit does not need > crossover by the way, maybe that's where things go wrong ... > > > B. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20100927/ba7cc959/attachment.htm>