Slight clarification with the arp traffic. What I meant was broadcast traffic translated into BUM traffic with the EVPN architecture is there any way to reduce the amount of BUM traffic with a data center design requirement with vlan anywhere sprawl with 1000s of type 2 Mac mobility routes being learned between all the leaf VTEPs.
The elimination of broadcast is a tremendous gain and with broadcast suppression of multicast that does help but it would be nice to not have such massive Mac tables type 2 route churn chatter with a conversation learning where only active flows are are in the type 2 rib. Kind regards Gyan On Wed, Apr 22, 2020 at 6:47 PM Gyan Mishra <hayabusa...@gmail.com> wrote: > > 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 <hayabusa...@gmail.com> 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: 301 502-1347 >> >> Email: gyan.s.mis...@verizon.com >> >> >> >> -- > > Gyan Mishra > > Network Engineering & Technology > > Verizon > > Silver Spring, MD 20904 > > Phone: 301 502-1347 > > Email: gyan.s.mis...@verizon.com > > > > -- Gyan Mishra Network Engineering & Technology Verizon Silver Spring, MD 20904 Phone: 301 502-1347 Email: gyan.s.mis...@verizon.com
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