Re: [PATCH] bonding: added 802.3ad round-robin hashing policy for single TCP session balancing
From: Oleg V. Ukhno <hidden>
Date: 2011-01-24 19:34:13
On 01/22/2011 03:48 PM, Nicolas de Pesloüan wrote:
Le 21/01/2011 14:55, Oleg V. Ukhno a écrit :quoted
On 01/19/2011 11:12 PM, Nicolas de Pesloüan wrote:
quoted
quoted
Nicolas, I've ran similar tests for VLAN tunneling scenario. Results are identical, as I expected. The only significat difference is link failure handling. 802.3ad mode allows almost painless load reditribution, balance-rr causes packet loss.Oleg, Thanks for doing the tests. What link failure mode did you use for those tests ? miimon or arp monitoring ? Nicolas.
Nicolas, as for tests: MII link monitoring kills the whole transfer, when in ARP mode monitoring - it still works, but there is asymmetric load striping on bond slaves(one slave is overloaded, two other - about 50-60% badwidnth utilized. Just as a summary - balance-rr behaves like patched 802.3ad when using arp monitoring mode, but there is quite asymmetric load striping and quite a monstrous configuration on switch and server sides. -- Best regards, Oleg Ukhno