[j-nsp] EVPN VGA MAC address learning cause flooding

[Roger Wiklund]

Sorry I missed you _actual_ question :)
I never figured out why this is the default behavior, sorry.

Regards
Roger

On Tue, Dec 7, 2021 at 4:40 PM Roger Wiklund <roger.wiklund at gmail.com>
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 at 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 at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>
>