Date: Wed, 03 Sep 2014 00:34:14 +0200 From: Marek Salwerowicz <marek_sal@wp.pl> To: "Dustin J. Mitchell" <dustin@v.igoro.us>, Marek Salwerowicz <marek_sal@wp.pl> Cc: freebsd-net@freebsd.org, Peter Jeremy <peter@rulingia.com> Subject: Re: bridging VLAN interfaces and STP Message-ID: <540645E6.2050809@wp.pl> In-Reply-To: <CAJtE5vQxeaufx2LPYxOHcixhm5QiV49Y7Ab2DkpKhSdbE0_YUA@mail.gmail.com> References: <CAJtE5vRq8oJz1f8ujsTSjGJjoEMp_J-n6Nqj0YCUd_nrScnPqA@mail.gmail.com> <CAJtE5vQLdtXtyejKUHkX1DKfVS-SaVF4n3=nfA%2BecH4Jhn3VXQ@mail.gmail.com> <20120827094956.GA93853@server.rulingia.com> <CAJtE5vSQ2W_H_jsr=BA7e0pcU1wJ_qiKHTSc3W2AuWbWgAjvpA@mail.gmail.com> <20120901215514.GA84970@server.rulingia.com> <CAJtE5vQn-ToGhMqPw3By8M4Mi_ycpkR33qxQRwT=ezKv5PTmhg@mail.gmail.com> <540625B4.6040907@wp.pl> <CAJtE5vQxeaufx2LPYxOHcixhm5QiV49Y7Ab2DkpKhSdbE0_YUA@mail.gmail.com>
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W dniu 2014-09-02 o 22:27, Dustin J. Mitchell pisze:
> No, I never figured it out. I never really even got Peter to
> understand the problem - he was still asking about whether STP packets
> were on the wire when I left the issue, yet the problem is interface
> configuration, not traffic.
>
> FreeBSD doesn't support configuring STP on VLAN interfaces - whether
> that's a bug or a feature is for someone else to decide. I can
> confirm it is still the case:
Does the bridge without STP work for you ?
What do you actually bridge? As I see, there are 2 physical interfaces
and 1 vlan
I am wondering if the STP is really necessary for bridging vlan with
wlan0 interface, but so far I can't figure out the answer
Marek
>
> hilbert ~ # sysctl -n kern.osrelease kern.ostype
> 9.2-RELEASE-p10
> FreeBSD
> hilbert ~ # ifconfig bridge10
> bridge10: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> ether 02:f4:a1:63:5a:0a
> inet6 fe80::f4:a1ff:fe63:5a0a%bridge10 prefixlen 64 scopeid 0xd
> inet 172.16.1.21 netmask 0xffffff00 broadcast 172.16.1.255
> inet 172.16.1.1 netmask 0xffffffff broadcast 172.16.1.1
> inet6 2001:470:1f11:826::1:15 prefixlen 64
> inet6 2001:470:1f11:826::1:1 prefixlen 128
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
> maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
> root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
> member: vr3 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
> ifmaxaddr 0 port 4 priority 128 path cost 55
> member: vr2 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
> ifmaxaddr 0 port 3 priority 128 path cost 200000
> member: vr1.10 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
> ifmaxaddr 0 port 9 priority 128 path cost 200000
> hilbert ~ # ifconfig vr1.10
> vr1.10: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> metric 0 mtu 1500
> ether 00:00:24:ce:ec:95
> inet6 fe80::200:24ff:fece:ec95%vr1.10 prefixlen 64 scopeid 0x9
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> media: Ethernet autoselect (100baseTX <full-duplex>)
> status: active
> vlan: 10 parent interface: vr1
> hilbert ~ # ifconfig bridge10 stp vr1.10
> ifconfig: unable to set bridge flags: Invalid argument
>
> Dustin
>
> On Tue, Sep 2, 2014 at 4:16 PM, Marek Salwerowicz <marek_sal@wp.pl> wrote:
>> Hello Dustin,
>>
>> W dniu 2012-09-02 o 01:13, Dustin J. Mitchell pisze:
>>> On Sat, Sep 1, 2012 at 5:55 PM, Peter Jeremy<peter@rulingia.com> wrote:
>>>>> That looks like RSTP is enabled on both bridge10 and bridge20 but is
>>>>> not seeing incoming [R]STP packets. Are you sure the switch connected
>>>>> to vr1 is configured with per-VLAN STP (this is probably not the
>>>>> switch default).
>>>>>
>>>>> Have you tried running tcpdump on vr1 and checked that you are seeing
>>>>> STP packets within the VLANs.
>>> Actually, if you compare with my original ifconfig, you'll see that
>>> this particular arrangement shows STP as enabled on the bridge, but
>>> not on any of the members (no STP in their options. In the OP, you
>>> can see that the vr{2,3} get STP in their flags
>>> (<LEARNING,DISCOVER,STP,AUTOEDGE,AUTOPTP>) while vr1.10 does not.
>>> That, and the error message from the 'ifconfig bridge10 stp vr1.10'
>>> command..
>>
>>
>> I'd like to ask if have you managed to figure out this issue? I am facing
>> more or less the same problem
>>
>> I have set up multiple VLANs on my FreeBSD box and now would like to bridge
>> WiFi adapter (wlan0) with only one vlan:
>>
>> When I try to configure bridge:
>>
>> % sudo ifconfig bridge create
>> % sudo ifconfig bridge addm wlan0
>> % sudo ifconfig bridge addm vlan1200
>> bridge0: error setting interface capabilities on vlan1200
>> % sudo ifconfig bridge stp wlan0
>> % sudo ifconfig bridge0 stp vlan1200
>> ifconfig: unable to set bridge flags: Invalid argument
>>
>> % ifconfig bridge0
>> bridge0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> ether 02:8e:2e:18:3e:00
>> nd6 options=9<PERFORMNUD,IFDISABLED>
>> id 04:f0:21:0f:77:d7 priority 32768 hellotime 2 fwddelay 15
>> maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
>> root id 04:f0:21:0f:77:d7 priority 32768 ifcost 0 port 0
>> member: vlan1200 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>> ifmaxaddr 0 port 6 priority 128 path cost 20000
>> member: wlan0 flags=147<LEARNING,DISCOVER,STP,AUTOEDGE,AUTOPTP>
>> ifmaxaddr 0 port 11 priority 128 path cost 33333 proto rstp
>> role designated state discarding
>>
>>
>> If I change vlan1200 to physical interface, everything works without any
>> problems..
>>
>> Do you have any idea?
>>
>> Cheers,
>>
>> Marek
>>
>>
>>
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