Hallo Jan, > That is not 100% correct. There are at least 6 mod that the bonding > device of linux supports. balance-alb and balance-tlb are not > assigning the same MAC to the interfaces in the bond. Therefore you > don't need a switch that supports trunks or something similar. Hmm, we tried balance-tlb. After view seconds either the bonding device was down with a bunch of kernel logs or the node hang-up. Maybe, somebody can report on this problem.
> > The problem ist that the performance of the bonding device under linux > is far away from being optimal (as far as i saw). The round-robin or > ad modes do not bring more than 140 to 150 MB/s out of 2 Gigabit > links. > The load balancing modi allow multiple connections to be fast but are > not speeding up a single connection (each connection is limited to the > speed of a single link in the bond). Exactly. Using the VLAN trick the student reported a transmission rate of 240MB/s using round-robin, NFS (reading from a ram-disk) and 2 Gigabit links, also, if one establishes a single connection. We don't know yet, how it scales in a cluster. There might be a problem with reordering the packages. Regards Henning _______________________________________________ Beowulf mailing list, [email protected] To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
