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I have four ethernet adapters, split into two bridged adapters; br0 and br1. br0 consists of em1 and em2, br1 consists of em3 and em4. if I leave em2 and em4 unplugged, I can create both bridges, however once they are created and I plug in the remaining adapters for the bridge, they cause a network storm. The following are my configuration files for each interface and bridge:
Parts of the bridge seem to be working; for instance, I can use either em1 or em2 with a cable, and send and receive pings using the same address, but if both are plugged in (on either bridge) then I get a broadcast storm.
...however once they are created and I plug in the remaining adapters for the bridge, they cause a network storm
How are the adapters connected to the rest of your network?
Do you really want a netmask of "255.255.252.0" for br0?
Is your network connected to any other bridges? If so, you may need to enable spanning tree protocol (STP) on your bridges.
switch 1 and switch 2 are completely separated. Their only connecting point would be this one server, via its bridges (which are not IPforwarding atm.) siwtch2 is my storage network, switch1 is our production network. The production network is a /22 so the 255.255.252.0 subnet is correct.
if I config both bridges, but only physically plug in em1 and em3, then the server acts fine. Pings both networks, goes online, etc. if I plug in em2 or em4, then I get a broadcast storm on the respective switch.