On Fri, 6 Jan 2017 18:15:24 +0300 gellert grindelwald <grindelwaldus@xxxxxxxxx> wrote: > I tried to figure out how to setup RSTP on Linux with VLANs and bridges > involved and now am completely confused. > > I am trying to bridge three interfaces, two of which are supposed to act as > trunk (hdlc0 and hdlc1) and one is supposed to act as access port (eth0). I > also need to enable RSTP on each interface included in bridge, but with the > configuration listed below RSTP packets are sent via hdlc0 and hdlc1 tagged > (!) so other devices (like Cisco switches) reject them. > > Here's my configuration: > > ifconfig eth0 up > > > ifconfig hdlc0 up > ifconfig hdlc1 up > > vconfig add hdlc0 42 > vconfig add hdlc1 42 > ifconfig hdlc0.42 up > ifconfig hdlc1.42 up > > > brctl addbr br1 > brctl addif br1 eth0 > brctl addif br1 hdlc0.42 > brctl addif br1 hdlc1.42 > > ifconfig br1 up > brctl stp br1 on > > > Another question: I also wonder how to configure RSTP in scenarios where I > have multiple bridges: say eth0 is trunk with vlan 42-42 allowed, vlan 42 > is supposed to pass via hdlc0 and vlan 43 is supposed to go via hdlc1, so I > have two bridges. If i enable RSTP on both bridges it will (probably) run > independently on each bridge so I'll face problems soon? 1. If doing vlan and RSTP then you wan to use external Spanning Tree daemon mstp https://github.com/mstpd/mstpd 2. Learn to use modern linux network utils (iproute2) to configure network and vlan. https://docs.cumulusnetworks.com/display/CL25/Spanning+Tree+and+Rapid+Spanning+Tree
