Am Thu, 03 May 2018 14:34:34 +0300 schrieb Doron Behar:
> Hi everyone,
>
> I'm trying to bond my wireless and wired network interfaces using
> `systemd-networkd`. Since I didn't want to put any configuration in
> `/etc/systemd/network/` I don't fully understand, this is the
> configuration I've ended up with:
>
> $ cat /etc/systemd/network/10-bond0.netdev
> [NetDev]
> Name=bond0
> Kind=bond
>
> ---
>
> $ cat /etc/systemd/network/20-wired.network
> [Match]
> Name=enp0s25
>
> [Network]
> Bond=bond0
>
> ---
>
> $ cat /etc/systemd/network/25-wireless.network
> [Match]
> Name=wlp2s0
>
> [Network]
> Bond=bond0
>
> ---
>
> $ cat /etc/systemd/network/35-tethering.network
> [Match]
> Name=enp0s20u*
>
> [Network]
> Bond=bond0
>
> ---
>
> $ cat /etc/systemd/network/40-bond0.network
> [Match]
> Name=bond0
>
> [Network]
> DHCP=yes
>
> ---
>
> As opposed to the old configuration which works as fast as light:
>
> $ cat /etc/systemd/network/20-wired.network
> [Match]
> Name=enp0s25
>
> [Network]
> DHCP=yes
>
> ---
>
> $ cat /etc/systemd/network/25-wireless.network
> [Match]
> Name=wlp2s0
>
> [Network]
> DHCP=yes
>
> ---
>
> $ cat /etc/systemd/network/35-tethering.network
> [Match]
> Name=enp0s20u*
>
> [Network]
> DHCP=yes
>
> ---
>
> With the 1st configuration, If I reboot, I definitely have networking
> capabilities but from some reason, after a while, browsing the web for
> example, becomes extremely slow.
>
> How can I debug this? Are there any best practices for the simplest
> bonding configuration? What am I missing here?
Do the wifi and cable network connect to the same router? Then it
probably doesn't know about the bonding and network packets start to
travel in circles after a while.
You may be able to fix this by setting the bond mode to failover
instead of balancing. I think the mode is called "active-backup". But
usually the other end of the bond needs to know about this, too.
Another mode which may work is "balance-xor" which usually allows
attaching bonding members to different switches on the other side.
The mode defaults to balance-rr which is probably incompatible with
your setup.
BTW: Bonding may not improve throughput and even hurt latency a lot if
you combine very different types on links, i.e. wifi and cable. So
"active-backup" may be the best way to do it here.
--
Regards,
Kai
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