Re: [Madwifi-users] STP and Madwifi problems

[IO t. <arm...@gm...>]

Hi Dennis, thank you for the reply. The missing wds flag on the second
board is an error that we made during the cut and paste... We have
verified that all the radios work well.

A strange detail. The designated bridge for the station on board 2
(ath1) is the bridge on the same board... Any suggestion?

2007/11/15, dennis khoo <dh...@ya...>:
> If you turn off 1 pair of master-client association,
> can the board ping each other?  If so, turn off the
> other pair and on the previously off pair and try the
> ping.  That should tell you something.  Maybe one of
> the radios is not working so all ports forward.  Try
> checking that the stp bpdus are received on each of
> the 4 devices via tcpdump.
>
> Also. maybe the missing wds setting on the ap of board
> 2 is screwing up the one of the links...
>
> hopes this helps,
> dennis
>
> --- IO te <arm...@gm...> wrote:
>
> > Hi,
> > today we've tested the bridge-utils STP in the
> > following scenario
> > using the madwifi 0.9.3.2:
> >
> >         AP    ch. 36     Sta
> >           |----------------------|
> > BR1 |                              | BR2
> >           |----------------------|
> >           Sta   ch. 40     AP
> >
> > Unfortunately it doesn't work because every port of
> > both the boards
> > remains in forwarding state.
> >
> > We were expecting that one of the four ports would
> > move to the blocking state.
> > Obviously one of the two board is elected as root by
> > STP and has both
> > ports in forwarding state, the problem is on the
> > other one.
> >
> > Anyway, these are the configurations:
> >
> > Board 1:
> >
> > wlanconfig ath0 create wlandev wifi0 wlanmode ap
> > iwpriv ath0 mode 1
> > iwconfig ath0 essid tratta1 channel 36
> > iwpriv ath0 wds 1
> > ifconfig ath0 0.0.0.0 up
> > wlanconfig ath1 create wlandev wifi1 wlanmode sta
> > nosbeacon
> > iwpriv ath1 mode 1
> > iwconfig ath1 essid tratta2
> > iwpriv ath1 wds 1
> > ifconfig ath1 0.0.0.0 up
> > brctl addbr br0
> > brctl addif br0 ath0
> > brctl addif br0 ath1
> > ifconfig br0 11.0.0.1/24 up
> > brctl stp br0 on
> >
> > Board 2:
> >
> > wlanconfig ath0 create wlandev wifi0 wlanmode ap
> > iwpriv ath0 mode 1
> > iwconfig ath0 essid tratta2 channel 40
> > ifconfig ath0 0.0.0.0 up
> > wlanconfig ath1 create wlandev wifi1 wlanmode sta
> > nosbeacon
> > iwpriv ath1 mode 1
> > iwconfig ath1 essid tratta1
> > iwpriv ath1 wds 1
> > ifconfig ath1 0.0.0.0 up
> > brctl addbr br0
> > brctl addif br0 ath0
> > brctl addif br0 ath1
> > ifconfig br0 11.0.0.2/24 up
> > brctl stp br0 on
> >
> > The interfaces associate in the right way, but this
> > is the result of
> > the command brctl showstp br0:
> >
> > Board 1:
> >
> > # brctl showstp br0
> > br0
> >  bridge id              8000.00026f408483
> >  designated root        8000.00026f408483
> >  root port                 0                    path
> > cost                  0
> >  max age                  20.00
> > bridge max age            20.00
> >  hello time                2.00
> > bridge hello time          2.00
> >  forward delay            15.00
> > bridge forward delay      15.00
> >  ageing time             300.00
> >  hello timer               0.35                 tcn
> > timer                  0.00
> >  topology change timer     0.00                 gc
> > timer                   0.07
> >  flags
> >
> >
> > ath0 (0)
> >  port id                0000
> > state                forwarding
> >  designated root        8000.00026f408483       path
> > cost                100
> >  designated bridge      8000.00026f408483
> > message age timer          0.00
> >  designated port        8001
> > forward delay timer        0.00
> >  designated cost           0                    hold
> > timer                 0.34
> >  flags
> >
> > ath1 (0)
> >  port id                0000
> > state                forwarding
> >  designated root        8000.00026f408483       path
> > cost                100
> >  designated bridge      8000.00026f408483
> > message age timer          0.00
> >  designated port        8002
> > forward delay timer        0.00
> >  designated cost           0                    hold
> > timer                 0.00
> >  flags
> >
> > Board 2:
> >
> > # brctl showstp br0
> > br0
> >  bridge id              8000.00156d539d8d
> >  designated root        8000.00026f408483
> >  root port                 1                    path
> > cost                100
> >  max age                  20.00
> > bridge max age            20.00
> >  hello time                2.00
> > bridge hello time          2.00
> >  forward delay            15.00
> > bridge forward delay      15.00
> >  ageing time             100.00
> >  hello timer               0.00                 tcn
> > timer                  0.00
> >  topology change timer     0.00                 gc
> > timer                   0.08
> >  flags
> >
> >
> > ath0 (0)
> >  port id                0000
> > state                forwarding
> >  designated root        8000.00026f408483       path
> > cost                100
> >  designated bridge      8000.00026f408483
> > message age timer         19.70
> >  designated port        8002
> > forward delay timer        0.00
> >  designated cost           0                    hold
> > timer                 0.00
> >  flags
> >
> > ath1 (0)
> >  port id                0000
> > state                forwarding
> >  designated root        8000.00026f408483       path
> > cost                100
> >  designated bridge      8000.00156d539d8d
> > message age timer          0.00
> >  designated port        8002
> > forward delay timer        0.00
> >  designated cost         100                    hold
> > timer                 0.69
> >  flags
> >
> >
> > Thanks in advance for all your help
> >
> > Andrea, Massimiliano and Riccardo
> >
> >
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