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Advanced Virtual Subnet Architecture in Active-Active Data Centers

Explore the dynamic configuration of an active-active data center setup with virtual subnets that ensure optimal path symmetry and guaranteed connectivity. This architecture includes client connections (Client X and Client Y), routing protocols like BGP, NAT outside pools, and the use of VRF for isolating traffic. With detailed IP routing schemes and ARP configurations, the design highlights redundancy with multiple gateways (GW-1 and GW-2) and internet connectivity to ensure a robust network backbone. This setup is ideal for businesses requiring high availability and disaster recovery solutions.

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Advanced Virtual Subnet Architecture in Active-Active Data Centers

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  1. PE-1 PE-2 Active-active DC Exits in Virtual Subnet(Path Symmetry Guaranteed ) Client Y(near DC#2) Client X(near DC#1) Internet 1 1 IP(X)->IP(A) IP(Y)->IP(A) 4 4 IP(A)->IP(Y) IP(A)->IP(X) NAT outside pool: 2.0.0.0/8 NAT outside pool: 3.0.0.0/8 GW-1 GW-2 1.1.1.255 1.1.1.255 VPN Subnet: 1.1.0.0/16 2 2 3.x.y.z->IP(A) 2.x.y.z->IP(A) VRF : VRF: Prefix Next-hop Protocol 1.1.1.1/32 Local ARP 1.1.1.255/32 Local ARP 2.0.0.0/8 PE-1 BGP 3.0.0.0/8 GW-2 Static Prefix Next-hop Protocol 1.1.1.1/32 PE-2 BGP 1.1.1.255/32 Local ARP 2.0.0.0/8 GW-1 Static 3.0.0.0/8 PE-2 BGP MPLS/IP Backbone 3 IP(A)->2.x.y.z 3 IP(A)->3.x.y.z Host A: 1.1.1.1 GW=1.1.1.255 VPN Site #2 VPN Site #1

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