Tamas Csillag
2010-Feb-09 17:21 UTC
[Bridge] bnx2 doesn't transmit BPDU or Blade switches don't forward, them?
Hi!
I'm faced with the same problem, and i'm not sure if it's a driver
or
bridge problem.
I'm using 2 switches, connected on port16.
switch1-----switch2-----router
\ /
\ /
server1
Switch1 bridge priority: 4096
Switch2 bridge priority: 5120
Default bridge priority on servers: 65535
If the switches are connected, STP forms just nice, switch1 becomes
root. If i disconnect the switch-switch cable, switch1 remains root, the
servers see switch1 as root, but switch2 declares itself as root. Guess
it's not receiving BPDU packets from the servers. If more than one
server is connected to both switches, loop forms, network goes down.
If i lower the bridgeprio on server1 to 2048, everybody accepts it as
the new root bridge, even switch2.
I tested the switches, they play STP nicely in a mixed-vendor environment.
Is it possible that the bridge/bnx2 don't propagate BPDUs from switch1
to switch2, while still receiving and transmitting BPDUs?
Regards,
Tamas
--
Tamas CSILLAG
IT consultant
A+ Server+ MCSA CCNA
JNCIA JNCIS 3DP APS
DCCA BAIS QFCA
tcsillag at interware.hu
+36 30 288 5488
-----Diego Woitasen wrote:
Date: Sun, 30 Aug 2009 20:10:32 -0300
From: Diego Woitasen <diegows at xtech.com.ar>
Subject: [Bridge] bnx2 doesn't transmit BPDU or Blade switches don't
forward them?
To: Bridge at lists.linux-foundation.org
Message-ID:
<b10f571a0908301610v246a7ce2v8d43a98fda2242cd at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi,
I have two Blades in one enclosure. They receive the same VLAN trunk
to bridge the VLANs and I want to have two bridges enabled in each
server. I've configured the bridge and enabled STP but I don' t see
the BPDU multicast incoming from the interface (I see the outging
packets).
xen198:~# tcpdump -i peth0 -enn ether dst 0180c2000000
tcpdump: WARNING: peth0: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on peth0, link-type EN10MB (Ethernet), capture size 96 bytes
20:07:27.150902 00:23:7d:37:1a:82 > 01:80:c2:00:00:00, 802.3, length
52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl
0x03: STP 802.1d, Config, Flags [none], bridge-id
0001.00:23:7d:37:1a:82.8001, length 35
20:07:29.150876 00:23:7d:37:1a:82 > 01:80:c2:00:00:00, 802.3, length
52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl
0x03: STP 802.1d, Config, Flags [none], bridge-id
0001.00:23:7d:37:1a:82.8001, length 35
20:07:31.150879 00:23:7d:37:1a:82 > 01:80:c2:00:00:00, 802.3, length
52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl
0x03: STP 802.1d, Config, Flags [none], bridge-id
0001.00:23:7d:37:1a:82.8001, length 35
xen199:~# tcpdump -i peth0 -enn ether dst 0180c2000000
tcpdump: WARNING: peth0: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on peth0, link-type EN10MB (Ethernet), capture size 96 bytes
20:07:35.115593 00:23:7d:37:08:78 > 01:80:c2:00:00:00, 802.3, length
52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl
0x03: STP 802.1d, Config, Flags [none], bridge-id
0002.00:23:7d:37:08:78.8001, length 35
20:07:37.115618 00:23:7d:37:08:78 > 01:80:c2:00:00:00, 802.3, length
52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl
0x03: STP 802.1d, Config, Flags [none], bridge-id
0002.00:23:7d:37:08:78.8001, length 35
20:07:39.115613 00:23:7d:37:08:78 > 01:80:c2:00:00:00, 802.3, length
52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl
0x03: STP 802.1d, Config, Flags [none], bridge-id
0002.00:23:7d:37:08:78.8001, length 35
Blade MACs are:
00:23:7d:37:08:78
00:23:7d:37:1a:82
Is there some issue with bnx2 or Blade switches and Linux bridge?
Regards,
Diego
--
Diego Woitasen
XTECH
richardvoigt at gmail.com
2010-Feb-09 18:25 UTC
[Bridge] bnx2 doesn't transmit BPDU or Blade switches don't forward, them?
On Tue, Feb 9, 2010 at 11:21 AM, Tamas Csillag <tcsillag at interware.hu> wrote:> Hi! > > I'm faced with the same problem, and i'm not sure if it's a driver or > bridge problem. > I'm using 2 switches, connected on port16. > > ?switch1-----switch2-----router > ? ? ? \ ? ? ? / > ? ? ? ?\ ? ? / > ? ? ? ?server1 > > Switch1 bridge priority: 4096 > Switch2 bridge priority: 5120 > Default bridge priority on servers: 65535 > > If the switches are connected, STP forms just nice, switch1 becomes > root. If i disconnect the switch-switch cable, switch1 remains root, the > servers see switch1 as root, but switch2 declares itself as root. Guess > it's not receiving BPDU packets from the servers. If more than one > server is connected to both switches, loop forms, network goes down.I guess the node you've labelled "server1" has bridging enabled? Is STP enabled on the software bridges? Bridges with STP disabled often eat BPDUs, which sounds like the symptom you're seeing.> > If i lower the bridgeprio on server1 to 2048, everybody accepts it as > the new root bridge, even switch2. > > I tested the switches, they play STP nicely in a mixed-vendor environment. > > Is it possible that the bridge/bnx2 don't propagate BPDUs from switch1 > to switch2, while still receiving and transmitting BPDUs? > > > Regards, > Tamas > > > -- > Tamas CSILLAG > IT consultant > > A+ Server+ MCSA CCNA > JNCIA JNCIS 3DP APS > DCCA BAIS QFCA > > tcsillag at interware.hu > +36 30 288 5488 > > > -----Diego Woitasen wrote: > > Date: Sun, 30 Aug 2009 20:10:32 -0300 > From: Diego Woitasen <diegows at xtech.com.ar> > Subject: [Bridge] bnx2 doesn't transmit BPDU or Blade switches don't > ? ? ? ?forward them? > To: Bridge at lists.linux-foundation.org > Message-ID: > ? ? ? ?<b10f571a0908301610v246a7ce2v8d43a98fda2242cd at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, > ?I have two Blades in one enclosure. They receive the same VLAN trunk > to bridge the VLANs and I want to have two bridges enabled in each > server. I've configured the bridge and enabled STP but I don' t see > the BPDU multicast incoming from the interface (I see the outging > packets). > > xen198:~# tcpdump -i peth0 -enn ether dst 0180c2000000 > tcpdump: WARNING: peth0: no IPv4 address assigned > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > listening on peth0, link-type EN10MB (Ethernet), capture size 96 bytes > 20:07:27.150902 00:23:7d:37:1a:82 > 01:80:c2:00:00:00, 802.3, length > 52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl > 0x03: STP 802.1d, Config, Flags [none], bridge-id > 0001.00:23:7d:37:1a:82.8001, length 35 > 20:07:29.150876 00:23:7d:37:1a:82 > 01:80:c2:00:00:00, 802.3, length > 52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl > 0x03: STP 802.1d, Config, Flags [none], bridge-id > 0001.00:23:7d:37:1a:82.8001, length 35 > 20:07:31.150879 00:23:7d:37:1a:82 > 01:80:c2:00:00:00, 802.3, length > 52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl > 0x03: STP 802.1d, Config, Flags [none], bridge-id > 0001.00:23:7d:37:1a:82.8001, length 35 > > xen199:~# tcpdump -i peth0 -enn ether dst 0180c2000000 > tcpdump: WARNING: peth0: no IPv4 address assigned > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > listening on peth0, link-type EN10MB (Ethernet), capture size 96 bytes > 20:07:35.115593 00:23:7d:37:08:78 > 01:80:c2:00:00:00, 802.3, length > 52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl > 0x03: STP 802.1d, Config, Flags [none], bridge-id > 0002.00:23:7d:37:08:78.8001, length 35 > 20:07:37.115618 00:23:7d:37:08:78 > 01:80:c2:00:00:00, 802.3, length > 52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl > 0x03: STP 802.1d, Config, Flags [none], bridge-id > 0002.00:23:7d:37:08:78.8001, length 35 > 20:07:39.115613 00:23:7d:37:08:78 > 01:80:c2:00:00:00, 802.3, length > 52: LLC, dsap STP (0x42) Individual, ssap STP (0x42) Command, ctrl > 0x03: STP 802.1d, Config, Flags [none], bridge-id > 0002.00:23:7d:37:08:78.8001, length 35 > > Blade MACs are: > 00:23:7d:37:08:78 > 00:23:7d:37:1a:82 > > Is there some issue with bnx2 or Blade switches and Linux bridge? > > Regards, > ?Diego > -- > Diego Woitasen > XTECH > _______________________________________________ > Bridge mailing list > Bridge at lists.linux-foundation.org > https://lists.linux-foundation.org/mailman/listinfo/bridge >