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ref: 6e88d91adf4f6b31028a70cbb4e3fc20b49b2897
dir: /sys/man/8/ethermultilink/

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.TH ETHERMULTILINK 8
.SH NAME
ethermultilink \- switch between multiple interfaces on a bridge
.SH SYNOPSIS
.B ethermultilink
.I primary
.I secondary
[
.I secondary
]...
.B > /net/bridge0/ctl
.SH DESCRIPTION
Ethermultilink takes a
.I primary
ethernet interface and a list of
.I secondary
interfaces in increasing priority order.
It checks the link status of the
secondary interfaces and if any are
link-active, bridges the primary
and the highest priority secondary
interface together by outputting
.IR bridge (4)
commands on standard output.
The link status of all the secondary interfaces
is checked once per second and the commands to
change the active secondary are output as needed.
.SH EXAMPLE
.EX
# make the bridge
bind -a '#B' /net
# mount the ethernet
bind -a '#l0' /net
# mount the wifi
bind -a '#l1' /net
# roam between wifi and ethernet
ethermultilink /net/ether1 /net/ether0 > /net/bridge0/ctl
# setup ip on the primary
ip/ipconfig ether /net/ether1
.EE
.SH SOURCE
.B /rc/bin/ethermultilink
.SH "SEE ALSO"
.IR bridge (3).