Multiple interfaces, same subnet - directing return traffic to proper interface

[kobuki]

BPDU can be disabled. A distinct separate bridge should see no other Layer 2 traffic where a shared bridge may allow other Layer 2 and if so consider switch port rules that allows only specific MAC set

This might lead somewhere. Although we experimented with a lot of things, like setting the bridge to use RTSP, then changed all ports to edge. This stopped the BPDU packets, but somehow traffic not addressed to us started to flow through our bridge. This again made the upstream switch scream in horror and shut down our links. Then we tried a config where we filtered BPDU packets, it didn’t work (packets still flew, this could be our error). At this point we reached the maximal downtime allowed, so finished work on-site. I later tried disabling BPDU and inter-port data flow within our bridge on the uplink ports, all led to a blackened state. Might try again if my time allows…

[kobuki]

A bridge consisting of ports, bridged on the other side as well, with disabled STP will:

• create a loop

It will not:

• balance traffic to use 4 Gbps

Sometimes there is no real, usable and good technical solution for a problem.
Or the solution would be to pay more money for getting the service on an 10G link. Or convince the ISP doing bonding.

Yeah. Now I simply use srcnat to steer traffic when forwarding. It’s working as intended, but pretty meh. Balancing and bonding is not required (as in: push more than 1Gb BW through a single link), but would be a lot better as I would end up with a nice single (logical) interface. 10Gb is on the horizon, at least. Not in the immediate future, though. And not with the same ISP.