Interesting discussion here. I take it this is not just an issue for packets *originated* by the switch (as in generated by the switch), but also routed packets it forwards?
Sounds like the config posted hard-coding the MAC is a sensible thing to do. I'm pondering now, in a situation with multiple vlans / irb interfaces on a device, if there is any requirement to set a different VG MAC for each one? Seems I could use, for instance, the two in the example for every irb/vlan and not have any conflict? thanks, Cathal. On Tue, 7 Dec 2021 at 15:48, Roger Wiklund via juniper-nsp <juniper-nsp@puck.nether.net> wrote: > > Hi > > Yes you need to set the vga-v4/v6-mac on the IRB interface: > > virtual-gateway-v4-mac | EVPN User Guide | Juniper Networks TechLibrary > <https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/ref/statement/virtual-gateway-v4-mac-edit-interfaces.html> > > eg: > > set interfaces irb.x virtual-gateway-v4-mac 00:00:5e:44:44:44 > set interfaces irb.x virtual-gateway-v6-mac 00:00:5e:66:66:66 > > Regards > Roger > > On Sun, Nov 21, 2021 at 12:46 PM Chen Jiang via juniper-nsp < > juniper-nsp@puck.nether.net> wrote: > > > Hi! Experts > > > > Sorry for disturbing, I am curious why IRB interface in EVPN does not use > > VGAs' Virtual MAC address (00:00:5e:00:01:01) to originate packets, but > > instead uses the interface real MAC address to originate packets. > > > > Are there any special thoughts behind this? It will cause BUM flooding if > > peer is a layer 2 switch ( peer s will never learn VGA virtual MAC address) > > > > Thanks for your help! > > > > -- > > BR! > > > > > > > > James Chen > > _______________________________________________ > > juniper-nsp mailing list juniper-nsp@puck.nether.net > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > > _______________________________________________ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
