netdev - feature - ip link set <dev> primary <dev> ?

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Message-ID: <56B41209.1060308@nurealm.net>
Date:	Thu, 4 Feb 2016 20:07:53 -0700
From:	James Feeney <james@...ealm.net>
To:	netdev@...r.kernel.org
Subject: feature - ip link set <dev> primary <dev> ?

Should there be an

 ip link set <primary-slave-device> primary <master-device>

command in the iproute2 package, to set the Primary Slave on a "bond" type link?

It seems that the alternative now is to use the sysfs, with

 echo -n <primary> > /sys/devices/virtual/net/<master-device>/bonding/primary

which, in systemd Service Unit Files, requires "/usr/bin/sh -c 'echo ...'"
rather than simply "/usr/bin/echo ...".  "ip" seems to handle all other "bond"
configuration itself.

Thanks
James