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NVO3 Anycast Layer 3 Gateway draft-hao-nvo3-anycast-gw-00. haoweiguo@huawei.com lucy.yong @huawei.com liyizhou @huawei.com imfeng@h3c.com wadeshao@tencent.com liuzhiheng@chinamobile.com. Weiguo Hao ( Huawei ) Lucy Yong( Huawei ) Yizhou Li( Huawei ) Feng Wang(H3C)
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NVO3 Anycast Layer 3 Gatewaydraft-hao-nvo3-anycast-gw-00 haoweiguo@huawei.com lucy.yong@huawei.com liyizhou@huawei.com imfeng@h3c.com wadeshao@tencent.com liuzhiheng@chinamobile.com WeiguoHao(Huawei) Lucy Yong(Huawei) Yizhou Li(Huawei) Feng Wang(H3C) Wade Shao(Tencent) Vic Liu(China Mobile) July, 2014 Toronto Canada NVO3 Anycast Gateway
Scenario IP/MPLS WAN The traffic which goes through centralized gateway includes: 1. In/out DC traffic 2. In no distributed gateway case, inter-VNs traffic. Prone to be bottleneck GW1 GW2 NVO3 Network NVE1 NVE2 NVE3 TS1 TS2 TS3 TS4 TS5 TS6 Anycast layer 3 NVO3 gateway is to improve gateway scalability. NVO3 Anycast Gateway
L3 Anycast GW Solution VN IF 2(gateway interface for VN 2) Ip/mask: 20.1.1.1/24 VN IF 1(gateway interface for VN 1) Gateway Ip/mask: 10.1.1.1/24 IP/MPLS WAN GW1 (192.168.6.1) GW2 (192.168.6.1) Flow-based traffic load balancing among all GWs Anycastgateway NVO3 Network NVE1 (192.168.1.1) NVE2 (192.168.2.1) NVE3 (192.168.3.1) VN 1 TS1 TS2 TS3 TS4 TS5 TS6 VN 2 10.1.1.3 10.1.1.2 20.1.1.3 20.1.1.2 10.1.1.4 20.1.1.4 NVO3 Anycast Gateway
ARP Handling: L2 VN NVA pushes TS/NVE mapping to each GW NVA NVA pushes TS/NVE mapping , anycast gateway IP/MAC and outer IP mapping to each NVE GW1 (192.168.6.1) GW2 (192.168.6.1) NVO3 Network ARP Proxy NVE1 (192.168.1.1) NVE2 (192.168.2.1) NVE3 (192.168.3.1) TS1 TS2 TS3 TS4 TS5 TS6 ARP Request ARP Reply 10.1.1.3 10.1.1.2 20.1.1.3 20.1.1.2 10.1.1.4 20.1.1.4 NVO3 Anycast Gateway
Comparison between VRRP and anycast gateway solution NVO3 Anycast Gateway
Next Steps • Solicit other comments and suggestions. NVO3 Anycast Gateway