Joachim Schiele wrote:
> hello,
>
> what i want to do:
> having two computers both equipped with:
> lspci
> 01:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit
> Ethernet (rev 10)
> 01:0a.0 Ethernet controller: Atheros Communications Inc. AR5212/AR5213
> Multiprotocol MAC/baseband processor (rev 01)
For this kind of setup, if might be easier to setup a bonding interface,
instead of a bridge interface.
With a bonding setup, you can define a primary adapter that will be used when
available.
Nicolas.
>
> i create two bridges (one on each host)
> pc2b ~ # brctl show br0
> bridge name bridge id STP enabled interfaces
> br0 0000.0040f4a0b037 yes ath0
> eth0
>
> and then i set all interfaces up using:
> ip l set ath0 up
> ip l set eth0 up
> ip l set br0 up
>
> i put one ath0 interface into master mode and the other ath0 is a normal
> station (client). the connections eth0-eth0 works great, also the ath0-ath0
> link works great (tested with and without bridge).
>
> in general everything works, if i either one of the 4 interfaces down
> (eth0/eth0/ath0/ath0) stp's work creates a working path in no time.
>
> the issue is - the reason i write to this list however:
> when all interfaces are up the data always is going over ath0-ath0 instead of
> eth0-eth0. (the wireless lan should be my backup link).
>
> i issues setbridgeprio br0 1 and setbridgeprio br0 10. as well as setpathcost
> with various consistent experiments. say one experiment i set all ath0
> pathcosts to a value 100 all eth0 to 999.
> i don't see any difference when doing the opposite.
>
> any idea?
>
> dmesg added but i don't see anything special there. there was an error once
> but i think that might have something todo with the routing loop i caused
> (which i resolved with adding setfd with a higher value).
>
> thanks,
> joachim schiele
>
>
>
>
>
> ============ pc2 ==============
> dmesg
> br0: port 2(ath0) entering forwarding state
> br0: topology change detected, propagating
> br0: port 1(eth0) entering forwarding state
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> br0: no IPv6 routers present
> br0: received tcn bpdu on port 1(eth0)
> br0: topology change detected, propagating
> br0: port 2(ath0) entering disabled state
> br0: port 2(ath0) entering listening state
> br0: port 2(ath0) entering learning state
> br0: topology change detected, propagating
> br0: port 2(ath0) entering forwarding state
> ath0: no IPv6 routers present
> br0: received tcn bpdu on port 1(eth0)
> br0: topology change detected, propagating
> br0: port 2(ath0) entering disabled state
> br0: port 2(ath0) entering listening state
> br0: port 2(ath0) entering learning state
> br0: topology change detected, propagating
> br0: port 2(ath0) entering forwarding state
> ath0: no IPv6 routers present
> br0: received tcn bpdu on port 1(eth0)
> br0: topology change detected, propagating
>
> ip l
> 14: ath0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc noqueue
> state UNKNOWN
> link/ether 00:40:f4:a0:b0:37 brd ff:ff:ff:ff:ff:ff
> 3: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
> state UP qlen 1000
> link/ether 00:40:f4:eb:16:45 brd ff:ff:ff:ff:ff:ff
>
> pc2b ~ # brctl show
> bridge name bridge id STP enabled interfaces
> br0 0000.0040f4a0b037 yes ath0
> eth0
> pc2b ~ # brctl showstp br0
> br0
> bridge id 0000.0040f4a0b037
> designated root 0000.0040f4a0b037
> root port 0 path cost 0
> max age 9.99 bridge max age
> 9.99
> hello time 1.99 bridge hello time
> 1.99
> forward delay 2.99 bridge forward delay
> 2.99
> ageing time 3.99
> hello timer 1.49 tcn timer
> 0.00
> topology change timer 0.00 gc timer
> 1.49
> flags
>
>
> ath0 (2)
> port id 0402 state
> forwarding
> designated root 0000.0040f4a0b037 path cost 999
> designated bridge 0000.0040f4a0b037 message age timer
> 0.00
> designated port 0402 forward delay timer
> 0.00
> designated cost 0 hold timer
> 0.48
> flags
>
> eth0 (1)
> port id 2801 state
> forwarding
> designated root 0000.0040f4a0b037 path cost 111
> designated bridge 0000.0040f4a0b037 message age timer
> 0.00
> designated port 2801 forward delay timer
> 0.00
> designated cost 0 hold timer
> 0.48
> flags
>
> arp -e
> 10.0.0.1 ether 00:40:f4:a0:b0:00 C br0
>
>
>
>
>
>
>
>
>
> ============ pc6 ==============
> ip l
> 17: ath0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc noqueue
> state UP
> link/ether 00:40:f4:a0:b0:00 brd ff:ff:ff:ff:ff:ff
> 3: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
> state UP qlen 1000
> link/ether 00:40:f4:ec:59:06 brd ff:ff:ff:ff:ff:ff
>
> dmesg
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> __ratelimit: 9560 callbacks suppressed
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> eth0: received packet with own address as source address
> br0: port 2(ath0) entering disabled state
> __ratelimit: 7851 callbacks suppressed
> eth0: received packet with own address as source address
> br0: port 2(ath0) entering listening state
> br0: port 2(ath0) entering learning state
> br0: topology change detected, sending tcn bpdu
> br0: port 2(ath0) entering forwarding state
> br0: port 2(ath0) entering disabled state
> eth0: received packet with own address as source address
> br0: port 2(ath0) entering listening state
> br0: port 2(ath0) entering learning state
> br0: topology change detected, sending tcn bpdu
> br0: port 2(ath0) entering forwarding state
> br0: port 2(ath0) entering disabled state
> eth0: received packet with own address as source address
> br0: port 2(ath0) entering listening state
> br0: port 2(ath0) entering learning state
> br0: topology change detected, sending tcn bpdu
> br0: port 2(ath0) entering forwarding state
>
> arp -e
> PC2 ether 00:40:f4:a0:b0:37 C br0
>
> pc2b ~ # brctl show
> bridge name bridge id STP enabled interfaces
> br0 0000.0040f4a0b037 yes ath0
> eth0
> pc2b ~ # brctl showstp br0
> br0
> bridge id 0000.0040f4a0b037
> designated root 0000.0040f4a0b037
> root port 0 path cost 0
> max age 9.99 bridge max age
> 9.99
> hello time 1.99 bridge hello time
> 1.99
> forward delay 2.99 bridge forward delay
> 2.99
> ageing time 3.99
> hello timer 1.20 tcn timer
> 0.00
> topology change timer 0.00 gc timer
> 0.20
> flags
>
>
> ath0 (2)
> port id 0402 state
> forwarding
> designated root 0000.0040f4a0b037 path cost 999
> designated bridge 0000.0040f4a0b037 message age timer
> 0.00
> designated port 0402 forward delay timer
> 0.00
> designated cost 0 hold timer
> 0.20
> flags
>
> eth0 (1)
> port id 2801 state
> forwarding
> designated root 0000.0040f4a0b037 path cost 111
> designated bridge 0000.0040f4a0b037 message age timer
> 0.00
> designated port 2801 forward delay timer
> 0.00
> designated cost 0 hold timer
> 0.20
> flags
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>
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