Don't all switches use some form of STP/RSTP Gino? I'm talking about best practices for a switch bank really.
Do I set STP priority number lower than the default on the switch for the ports going to other switches? And what is the term or feature that means ignore STP type packets from that port (customer ports). I think I'm getting STP type topology changes every time a downstream customer port has a up/down change etc. I don't want those. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Gino Villarini Sent: Wednesday, January 18, 2017 2:00 AM To: af@afmug.com Subject: Re: [AFMUG] Switch expert help/advice 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:image001.png@01D2718B.144BF200] <af-boun...@afmug.com on behalf of sterl...@avative.net<mailto:af-boun...@afmug.com%20on%20behalf%20of%20sterl...@avative.net>> 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.
