Hello all For the vpc feature peer-switch the spanning tree config has to be *exactly the same* on both switches!
Also I would suggest to change the STP priority from default 32768 , otherwise some other new connected switch could become the new root bridge... Regards Gregor -----Ursprüngliche Nachricht----- Von: cisco-nsp <cisco-nsp-boun...@puck.nether.net> Im Auftrag von BASSAGET Cédric Gesendet: Donnerstag, 10. Oktober 2019 12:28 An: Nathan Lannine <nathan.lann...@gmail.com> Cc: Cisco-nsp <cisco-nsp@puck.nether.net> Betreff: Re: [c-nsp] cisco VPC problem on nx 3064 Hi Nathan, My linux boxes are not sending BPDUs. They're running bonds in bond-mode 802.3ad. No bridge stuff here. My last test was : N3K-eqx-pa3-1# show running-config spanning-tree spanning-tree mode mst spanning-tree mst configuration instance 1 vlan 2-4094 interface port-channel4091 spanning-tree port type network After re-checking my config I saw that I had a priority set for vlan 40 on switch 1. I removed it, put back all my vlans un MST0 and it seems it fixed my problem... Regards, Cédric Le jeu. 10 oct. 2019 à 11:16, Nathan Lannine <nathan.lann...@gmail.com> a écrit : > On Thu, Oct 10, 2019 at 2:36 AM BASSAGET Cédric < > cedric.bassaget...@gmail.com> wrote: > >> Hello aain, >> It seems my problem is related to STP. >> After rebooting a switch, VPC peer-link is disabled by spanning tree : >> >> > interface port-channel13 >> > switchport mode trunk >> > switchport trunk allowed vlan 40 >> > vpc 13 >> > >> > interface port-channel14 >> > switchport mode trunk >> > switchport trunk allowed vlan 40 >> > vpc 14 >> > >> >> > This really only makes sense if the linux boxen are sending bpdus, but > you could try setting the etherchannel interfaces to "spanning-tree > port type edge trunk". Of course, if you do so, you should probably run > "brctl show" > on your linux endpoints just to ensure they are not somehow running > their bond interfaces in a bridge and sending bpdus. > > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
