[ovirt-users] 答复: bonding 802.3ad mode

[Xie, Chao]

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-bounces at ovirt.org [mailto:users-bounces at ovirt.org] 代表 Alex Crow
发送时间: 2015年3月19日 0:25
收件人: users at 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.


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