[j-nsp] EVPN-VXLAN: Mixing QFX and EX

[Ian]

Much appreciated reply.

My understanding is EVPN-VXLAN uses anycast on all spines. All spines would have the same IP address (that is the gateway IP). Considering the limitations of the EX4600 you pointed out (which I assume is due to the Broadcom chipset), means in a case of mixing EX4600 with QFX5110, then the routing between VXLAN could only occur on the spines (assuming a QFX5110 or similar model supporting this) which effectively means traffic would trombone back and forth from the leaves to the spines rather than remain local to the switch even if the servers are on neighboring physical ports on the EX4600 leaves.

Am I making right assumptions?

I.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, April 16, 2019 3:37 PM, Vincent Bernat <bernat at luffy.cx> wrote:

> ❦ 16 avril 2019 11:04 +00, Ian i2vanov at protonmail.com:
>
> OK. So, the main question is whatever you are expecting to route between
> VXLAN (or between a VXLAN and a VLAN). EX4600 is only able to do L2
> stuff with VXLAN. 5110 is able to route between VXLAN and may be able
> under some conditions to route between a VLAN and a VXLAN.
>
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> 10.0 times 0.1 is hardly ever 1.0.
> - The Elements of Programming Style (Kernighan & Plauger)