On Wed, Mar 18, 2015 at 10:57:18PM -0400, Dan Yasny wrote: > Mode 0 is not supported under a bridge, just like mode 6 > > On Wed, Mar 18, 2015 at 10:47 PM, Xie, Chao <xiec.f...@cn.fujitsu.com> > wrote: > > > Yeah, Alex is right. And if you want to double the network’s speed in > > single flow, the mode 0 is only choice. But mode 0 seems not be supported > > in oVirt? > > > > > > > > *发件人:* users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] *代表 *Alex > > Crow > > *发送时间:* 2015年3月19日 0:25 > > *收件人:* users@ovirt.org > > *主题:* Re: [ovirt-users] bonding 802.3ad mode > > > > > > > > The balancing on 802.3ad only occurs for different network flows based on > > a hash of source and destination MAC (or can be made to add IP addresses > > into the calculation). A single flow will only use a single NIC in ad mode. > > > > Alex > > > > > > On 18/03/15 16:17, Nathanaël Blanchet wrote: > > > > Hi all, > > > > I'm used to create a mode 4 bond0 interface with two 1 Gb/s interfaces on > > all my hosts, and ethtool bond0 gives me a functionnal 2000Mb/s. However, > > when importing a vm from the export domain (NFS with a speed of 4GB/s), I > > always have this alert: > > > > "Host siple has network interface which exceeded the defined threshold > > [95%] (em3: transmit rate[0%], receive rate [100%])" > > It seems that the second nic never works while the first one is overloaded. > > Is it an expected behaviour? I believed that the flow was balanced between > > the two interfaces in 802.3ad mode.
To follow up on former ressponses: what do you have on top of your bond? If you have a VM network, multiple guests are expected to have a different hash value for each, and to spread the load on mode 4. If you use the bonds for a host network (e.g. dispaly, migration, storage) you can try mode 0. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users