Re: [bess] VXLAN BGP EVPN Question

[Gyan Mishra <[e-mail]>]

In the description of the vxlan BGP evpn scenario has a typo on the
multisite feature segmented LSP inter pod with the RT auto rewrite which is
similar to MPLS inter-as option b not a.

Kind regards

Gyan

On Wed, Apr 22, 2020 at 5:57 PM Gyan Mishra <[e-mail]> wrote:

>
> All
>
> Had a question related to vxlan BGP EVPN architecture specifications
> defined in BGP EVPN NVO3 overlay RFC 8365 and VXLAN data plane RFC 7348.
>
> In a Data Center environment where you have a multiple PODs individual
> fabrics per POD connected via a super spine extension using a Multi site
> feature doing auto rewrite of RTs to stitch the NVE tunnel between pods
> similar to inter-as option A.
>
> So in this scenario where you have vlan sprawl everywhere with L2 and L3
> VNIs everywhere as if it were a a single L2 domain.  The topology is a
> typical vxlan spine leaf topology where the L3 leafs are the TOR switch so
> very small physical  L2 fault domain. So I was wondering if with the vxlan
> architecture if this feature below is possible or if their is a way to do
> so in the current specification.
>
> Cisco use to have a DC product called “fabric path” which was based on
> conversation learning.
>
> Is there any way with existing vxlan BGP evpn specification or maybe
> future enhancement to have a Mac conversation learning capability so that
> only the active mac’s that are part of a conversations flow are the mac
> that are flooded throughout the vxlan fabric.  That would really help
> tremendously with arp storms so if new arp entries are generated locally on
> a leaf they are not flooded through the fabric unless their are active
> flows between leafs.
>
> Also is there a way to filter type 2 Mac mobility routes between leaf
> switches at the control plane level based on remote vtep or maybe other
> parameters.  That would also reduce arp storms BUM traffic.
>
> Kind regards
>
> Gyan
> --
>
> Gyan  Mishra
>
> Network Engineering & Technology
>
> Verizon
>
> Silver Spring, MD 20904
>
> Phone: [phone]
>
> Email: [e-mail]
>
>
>
> --

Gyan  Mishra

Network Engineering & Technology

Verizon

Silver Spring, MD 20904

Phone: [phone]

Email: [e-mail]