Yes, server1 has bridging enabled, br0 contains interfaces eth0 and eth1. STP enabled, port cost 4 for both ports, bridge priority 65535. Yesterday i tested the same setup with e1000 cards instead of bnx2 cards, same results. If i lower the bridge priority on server1 to 2048, both switches recognize server1 as the root bridge, and if i connect another server (server2) in the same arrangement, priority 65535, it sees server1 as root. Tamas richardvoigt@xxxxxxxxx wrote: > 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
