Why are you using stp? On 1/18/17, 12:33 AM, "Af on behalf of Sterling Jacobson"
Gino Villarini President Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 [cid:aeronet-logo_310cfc3e-6691-4f69-bd49-b37b834b9238.png] <[email protected] on behalf of [email protected]> wrote: >Any of you guys work with switches a lot? > >I use banks of switches in my fiber, set up per neighborhood. > >But really they are all linked via fiber so it's pretty much like a >datacenter. > >I'm using a few MPLS/VPLS tunnels to the switch banks. > >I'm having a real hard time tracking down a loop issue though. > >It's related to MikroTik lovely change in version 6.38 for STP/RSTP >bridge stuff. > >My problem is with an IBM switch I don't know very well. > >I suspect I have settings wrong for STP/RSTP etc. > >The switches are a simple configuration of VLAN 1/default for customer >traffic, then another VLAN for management from the device at their >house/MDU. > >I pull out the VLAN management at the mikrotik and bridge it with an area >wide L2 MPLS network. > >My problem is the IBM switches keep shutting down access to customer data >or management or the other switches they are connected to. >The crude method of recovery is reboot the switch. > >At the 'head' of the VPLS network I use an EOIP tunnel to a hosted >mikrotik that hosts the Dude and a few other management VM's on that >layer2 network. > >I'm regretting I did that and didn't create a more sophisticated routed >management network. > >But the hosted mikrotik is complaining of loop packets and sometimes just >goes wild and shuts down it's EOIP connecting interface for 60 seconds. >I can't seem to find a way to tell it to NOT do that either, seems like >it's built in to 6.38 no matter what Loop Protection I turn off or STP I >disable. >It's not like it's a lot of traffic, it's just seeing some BPDU or STP >type packets and killing itself. > >What is the best practice for switches regarding RSTP/PVRST BDPU guards >and STP root paths etc? > >The switches typically have two uplink ports going to the router or >another switch, the rest are customer facing ports.
