On Tue, Feb 9, 2010 at 11:21 AM, Tamas Csillag <tcsillag@xxxxxxxxxxxx> 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@xxxxxxxxxxxx > +36 30 288 5488 > > > -----Diego Woitasen wrote: > > Date: Sun, 30 Aug 2009 20:10:32 -0300 > From: Diego Woitasen <diegows@xxxxxxxxxxxx> > Subject: bnx2 doesn't transmit BPDU or Blade switches don't > forward them? > To: Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx > Message-ID: > <b10f571a0908301610v246a7ce2v8d43a98fda2242cd@xxxxxxxxxxxxxx> > 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@xxxxxxxxxxxxxxxxxxxxxxxxxx > https://lists.linux-foundation.org/mailman/listinfo/bridge > _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
