draft-rabadan-bess-dci-evpn-overlay-00*Jorge Rabadan

Senthil Sathappan

Wim Henderickx

Florin Balus

Senad Palislamovic

Ali Sajassi

Dennis Cai

Ravi Shekhar

Anil Lohiya

Interconnect Solution for EVPN Overlay networks

IETF 91, November 2014

Honolulu, US(*) Previous rev: draft-rabadan-l2vpn-dci-evpn-overlay-01

draft-rabadan-bess-dci-evpn-overlay-00 IETF91 – November 2014

DC1.

NVEs

EVI

How to interconnect EVPN-overlay networks

• Interconnect without a GW draft-sd-l2vpn-evpn-overlay

• No MAC-VRF instance on WAN Edges

• WAN Edges act as ASBRs, with VNIDs used as local significant values

EVPN-Overlay

DC1 .

WAN Edges

.

WAN

NVEs

EVI

DC1.

NVEs

EVI

DC1 .

GW1

.

VPLS

PE1

PE2

WAN

NVEs

EVI

CEs

EVI EVI

EVI

EVI

EVI

GW2

GW3

GW4

FW

WAN Edges

• Interconnect with a GW draft-rabadan-bess-dci-evpn-overlay

• MAC-VRF instance on GWs to provide an interconnect to heterogeneous WAN networks

• GW can use VNIDs as local or global values

• Protects/isolates the Overlay network

EVPN-OverlayEVPN-Overlay

draft-rabadan-bess-dci-evpn-overlay-00 IETF91 – November 2014

Interconnect solution in dci-evpn-overlay

WAN

EVPN-OVERLAYS

DGW-1

EVIHYPERVISOR

HYPERVISOR

HYPERVISOR

DGW-2

EVI

DATA CENTER INTERCONNECTFOR LAYER-2 EXTENSION

WAN PEs

DIFFERENT OR SAME ADMIN DOMAINS(DC AND WAN)

EXISTING OR NEWWAN

TECHNOLOGIES

DECOUPLED MODEL

INTEGRATED MODEL

VPLSPBB-VPLS

EVPN-MPLSPBB-EVPN

EVPN-VXLANNew in this rev

draft-rabadan-bess-dci-evpn-overlay-00 IETF91 – November 2014

Interconnect example: EVPN-Overlay to EVPN-MPLS

DC2.

NVEs

EVI

DC1 .

GW1

.

EVI

PE1

PE2

WAN

NVEs

EVI

CEs

EVI EVI

EVI

EVI

EVI

GW2

GW3

GW4

FW

• EVPN RT-1, 3 and 4 routes are consumed and not re-exported on GWs

• EVPN RT-2 routes are installed and re-exported with new RD/route-target/encap and aggregated label/VNI

• Multi-homing (single-active and all-active) is supported

• An I-ESI (Interconnect ESI) is defined

• No need for ESI labels for the I-ESI

• Local ACs are supported (multi-homing is supported too)

• GW optimizations protect/isolate the DC

EVPN-OverlayEVPN-Overlay

EVPN-MPLS

draft-rabadan-bess-dci-evpn-overlay-00 IETF91 – November 2014

Next steps

• The authors would like to request WG adoption

IETF91 – November 2014

THANKS!

IETF91 – November 2014