Hi Joakim, I'm not aware if Linux bridge is aware of this. I can tell you that ingeneral, STP has problems when mixed with VLANs. To solve this some extensions have arised: PVST by Cisco, MSTP, animprovement more or less estandarized and PVST+, a new update onlyavailable in Cisco environments. In general they run multiple "STP" instances per VLAN or VLAN group. Regards El mié, 07-05-2008 a las 11:22 +0200, Joakim Tjernlund escribió:> Got a bridge with 4 optical VLAN interfaces, eth1.1, eth1.2, eth1.3 and> eth1.4, attached and the builtin STP enabled. eth1 is connected to> a "switch" with 4 real interfaces, each real interface maps to one of> the above mentioned VLANs. > > If I loop two or more interfaces by connecting each interface's output> to its own input, I get a loop that STP doesn't detect.> Looping by connecting an output from one interface to another interface> input works fine.> > Bug or limitation in STP? If limitation, would RSTP help here?> > Kernel 2.6.25> > Jocke > _______________________________________________> Bridge mailing list> Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx> https://lists.linux-foundation.org/mailman/listinfo/bridge-- Jaime Nebrera - jnebrera@xxxxxxxxxxxxxxxxxxxxxxxxxxx TI - ENEO Tecnologia SLPol. PISA - C/ Manufactura 6, P1, 3BMairena del Aljarafe - 41927 - SevillaTelf.- 955 60 11 60 / 619 04 55 18 _______________________________________________Bridge mailing listBridge@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx://lists.linux-foundation.org/mailman/listinfo/bridge