From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jay Vosburgh Date: Fri, 02 Jun 2017 19:25:07 +0000 Subject: Re: Does bonding driver support 802.3ad "port-priority"? Message-Id: <21277.1496431507@famine> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Martin T wrote: [...] >does Linux bonding driver support 802.3ad "port-priority" feature? For >example in Cisco devices one can assign a "lacp port-priority" to each >port on a device running LACP. The port priority is used to decide >which ports should be put in standby mode when a hardware limitation >or the "lacp max-bundle" command configuration prevents all compatible >ports from aggregating. Such feature is also supported for example on >Juniper gear. Based on "Linux Ethernet Bonding Driver HOWTO" bonding >driver does not seem to support this feature.. No, it doesn't. All bonding slaves are set to port priority (Actor_Port_Priority) of 255, and bonding has no equivalent to the max-bundle option. The LAG selection logic described in 802.1AX 5.6.1 is not implemented, as bonding does not restrict the size of an aggregation. -J --- -Jay Vosburgh, jay.vosburgh@canonical.com