Prerequisites for an NSX Edge Cluster

Before you deploy an NSX Edge cluster you should review the prerequisites.

• Verify that separate VLANs and subnets are available for the NSX host overlay VLAN and NSX Edge overlay VLAN. You cannot use DHCP for the NSX Edge overlay VLAN.
• Verify that the NSX host overlay VLAN and NSX Edge overlay VLAN are routed to each other.
• For dynamic routing, set up two Border Gateway Protocol (BGP) peers on Top of Rack (ToR) switches with an interface IP, BGP autonomous system number (ASN), and BGP password.
• Reserve a BGP ASN to use for the NSX Edge cluster’s Tier-0 gateway.
• Verify that DNS entries for the NSX Edge nodes are populated in the customer-managed DNS server.
• The vSphere cluster hosting an NSX Edge cluster must include hosts with identical management, uplink, NSX Edge overlay TEP, and NSX Edge overlay TEP networks (L2 uniform).
• You cannot deploy an NSX Edge cluster on a vSphere cluster that is stretched. You can stretch an L2 uniform vSphere cluster that hosts an NSX Edge cluster.
• The management network and management network gateway for the NSX Edge nodes must be reachable from the NSX host overlay and NSX Edge overlay VLANs.