Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidentialwww.juniper.net 1 draft-sajassi-l2vpn-evpn-inter-subnet- switching-02.txt A. Sajassi (Cisco), S. Salam (Cisco), Y. Rekhter (Juniper), John Drake (Juniper), Wim Henderickx (ALU), Florin Balus (Nuage), Lucy Yong (Huawei), Linda Dunbar (Huawei) IETF 87, July 2013 Berlin

2 Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidentialwww.juniper.net Changes from rev01  Rev01 covered only homogenous Scenarios where it was assumed IRB functionality is present at all PE devices  This rev of the draft expands the scenarios to heterogeneous environment where not all PE devices have IRB functionality because: 1.Some PE devices may not have the IRB capability 2.It is preferred to control policies centrally at the WAN-edge PE devices

3 Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidentialwww.juniper.net Homogenous Scenarios Inter-Subnet Forwarding Among E-VPN NVEs within a DC

4 Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidentialwww.juniper.net Homogenous Scenarios – Cont. 1.Connecting E-VPN sites within a DC 2.Connecting E-VPN sites in different DCs without route aggregation 3.Connecting E-VPN sites in different DCs with route aggregation 4.Connecting IP-VPN sites and E-VPN sites with route aggregation 5.Connecting IP-VPN sites and E-VPN sites without route aggregation

5 Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidentialwww.juniper.net Heterogeneous Scenarios NVE1 GW NVE | … | | | |... | | (EVI) | |(EVI)-(VRF)| | (EVI) | | |..| | |.|..|. | | |..| | ^ v ^ v ^ v | | | | | | VM1->-+ +--> >-VM2 IRB functionality doesn’t exist in all PE devices

6 Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidentialwww.juniper.net Next Steps  Solicit more inputs