I would say that there is a loop in your network somewhere (i.e. the 10.1/16 and 10.2/16 subnets might not be as separate as you thought). This you can try:
1. brctl showstp br0, brctl showstp br1 Check whether you have ports in the 'blocking' state or not. 2. tcpdump -i br0, tcpdump -i br1 (with a recent tcpdump) Check whether the spanning tree packets that you see contain the same 'root' value or not. On Mon, Mar 25, 2002 at 04:50:07AM +0000, Matt Critcher wrote: > > Hi all. > > I have been digging through the mailing list archives and google for the past > couple of days looking for an answer, but have had little success. > > here's my network setup. > > i have a t-1, a cisco 2630 router, several hp4000M switches, and 2 VLAN > segments. i need to make 2 bridges on a i386 (750 athlon, RH72, 2.4.16, latest > from bridge.sf.net, 3c59x). yes, i know that there is the whole VLAN thing but > i am using TC so i need to break it up this way for various reasons (and my > problems are before i try to initiate TC). also, because i thought that it > might be the router, i tried it again between 2 of these switches and same > results (all traffic on the vlans is untagged) > > anyway, here is a little pic (sorry if it looks distored) to help explain. > > > > |---10.2/16--| eth0,eth1 |----- > ---WAN-----ROUTER------| | bridge box | | hp4000M switch(vlans) > |---10.1/16--| eth2,eth3 |----- > > > i set up the bridges this way > > brctl addbr br0 > ifconfig eth0 0.0.0.0 up > ifconfig eth1 0.0.0.0 up > brctl addif br0 eth0 > brctl addif br0 eth1 > ifconfig br0 0.0.0.0 up > > brctl addbr br1 > ifconfig eth2 0.0.0.0 up > ifconfig eth3 0.0.0.0 up > brctl addif br1 eth2 > brctl addif br1 eth3 > ifconfig br1 0.0.0.0 up > > i have also tried this without the 0.0.0.0 (just ifconfig eth/br up), and with > stp off. i have tried with addresses on the bridges and ethX. > > the problem is that no matter how i shuffle it around, the bridge created on > 10.2/16 only works if the bridge on 10.1/16 is down. it doesnt matter which i > make br0 or which i add first. if i bring up the bridge on 10.1, it just dont > work. tcpdump -i on 10.1 shows all the normal traffic. same thing on 10.2 > shows only arp and netbios-datagrams. > > this is really weird. i have replaced the nics thinking that one could be bad. > i have made sure that each nic is on its irq, and have replaced the network > cables with new, store-bought ones. > > i'm stumped. as i mentioned before, tc or iptables is not bound to anything. > this is just straight-out-of-the-box bridging. > > anyone out there had a simular problem? any advice? > > i really appreciate your help. > > thanks!! > > matt > > > > --------------------------------------------- > Visit http://www.neark.org > > > _______________________________________________ > Bridge mailing list > [EMAIL PROTECTED] > http://www.math.leidenuniv.nl/mailman/listinfo/bridge _______________________________________________ Bridge mailing list [EMAIL PROTECTED] http://www.math.leidenuniv.nl/mailman/listinfo/bridge
