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To: Dev <dev@logicalwebhost.com>, bloat <bloat@lists.bufferbloat.net>
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Date: Fri, 04 Jan 2019 21:40:33 +0100
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Subject: Re: [Bloat] fq_codel on bridge throughput test/config
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Dev <dev@logicalwebhost.com> writes:

> Okay, thanks to some help from the list, I=E2=80=99ve configured a transp=
arent bridge running fq_codel which works for multiple subnet traffic. Here=
=E2=80=99s my setup:
>
> Machine A =E2=80=94=E2=80=94=E2=80=94 192.168.10.200 =E2=80=94 =E2=80=94 =
bridge fq_codel machine B =E2=80=94=E2=80=94 laptop C 192.168.10.150
> Machine D =E2=80=94=E2=80=94=E2=80=94 192.168.3.50 =E2=80=94 =E2=80=94|=20
>
> On Machine A:
>
> straight gigE interface 192.168.10.200
>
> Bridge Machine B: enp3s0 mgmt interface
> 				enp2s0 bridge interface 1
> 				enp1s0 bridge interface 2
> 				br0 bridge for 1 and 2
>=20=09
> 	# The loopback network interface=20
> 	auto lo br0=20
> 	iface lo inet loopback=20
>
> 	# The primary network interface=20
> 	allow-hotplug enp3s0=20
> 	iface enp3s0 inet static=20
> 		 address 172.16.0.5/24=20
> 		 gateway 172.16.0.5=20
> 		dns-nameservers 8.8.8.8
>
>  	iface enp1s0 inet manual=20
> 		 tc qdisc add dev enp1s0 root fq_codel=20
>
> 	 iface enp2s0 inet manual=20
> 		tc qdisc add dev enp2s0 root fq_codel=20
>
> 	 # Bridge setup=20
> 	iface br0 inet static=20
> 		bridge_ports enp1s0 enp2s0=20
> 		address 192.168.3.75=20
> 		broadcast 192.168.3.255=20
> 		netmask 255.255.255.0=20
> 		gateway 192.168.3
>
> note: I still have to run this command later, will troubleshoot at
> some point (unless you have suggestions to make it work):

You can try setting the default qdisc to fq_codel; put:

net.core.default_qdisc=3Dfq_codel

in /etc/sysctl.conf

-Toke