From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Furniss Date: Fri, 11 Feb 2005 22:08:46 +0000 Subject: Re: [LARTC] priorizing vlans in a bridge Message-Id: <420D2CEE.1020909@dsl.pipex.com> List-Id: References: <1108073109.420bda954eda9@email.ubp.edu.ar> In-Reply-To: <1108073109.420bda954eda9@email.ubp.edu.ar> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org mschonfeld@ubp.edu.ar wrote: > Hi, this is my Linux Box > > ---------------------------- > LAN 1 -----|--eth1 <---br1--->eth0.1 | > | \ | > | eth0--|----- 802.1q tagged 1 Mbps link > | / | > LAN 2 -----|--eth2 <---br2--->eth0.2 | > ---------------------------- > > I have to bridge the 2 lans in the left side of the diagram with my linux box > running as a bridge. I have to tag the traffic of each lan so I created the 2 > vlans interfaces on eth0 (tag 1 and tag 2). > All works fine. But now I have to priorize LAN1 traffic so it leaves the bridge > before LAN2. Also I need to shape the traffic to the 1 Mbps link. > > I read about the "prio" qdisc but it honours the TOS field of the IP packets, > and I don't want to unless it was really necessary. > I read about the "prio" option of the htb qdisc and made some scripts, but they > don't work as I expected. Prio in htb setup like this only really affects the borrowing of excess - rate is guaranteed. Also you need to back off a bit from your link speed to allow for overheads. > > HTB script: > > tc qdisc add dev eth0 root handle 1: htb > tc class add dev eth0 parent 1: classid 1:1 htb rate 1000kbit > > tc class add dev eth0 parent 1:1 classid 1:11 htb rate 500kbit ceil 1000kbit prio 1 I would use something like rate 850kbit ceil 900kbit here > tc filter add dev eth0 parent 1: prio 1 protocol ip handle 1 fw classid 1:11 > iptables -t mangle -A PREROUTING -i eth1 -j MARK --set-mark 1 > > tc class add dev eth0 parent 1:1 classid 1:12 htb rate 500kbit ceil 800kbit prio 2 and rate 50kbit ceil 900kbit here. Andy. > tc filter add dev eth0 parent 1: prio 1 protocol ip handle 2 fw classid 1:12 > iptables -t mangle -A PREROUTING -i eth2 -j MARK --set-mark 2 > > What do you suggest me? > Thanks in advance. > _______________________________________________ > LARTC mailing list / LARTC@mailman.ds9a.nl > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ > _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/