Patent ID: 9699001
Date: 2017-07-04
CPC Classifications: H04L

Claim:
1. A switch, comprising: a plurality of ports; a storage device configured to store a data structure, which comprises an entry mapping a global virtual local area network (VLAN) tag to an edge VLAN tag and a datacenter domain identifier, wherein the datacenter domain identifier indicates a set of ports configured for a datacenter, and wherein the edge VLAN tag identifies a virtual network of a tenant in the datacenter and the global VLAN tag identifies a global virtual network distinct among tenants and datacenter domains; and forwarding circuitry configured to encapsulate a packet comprising the edge VLAN tag with an encapsulation header based on the entry, wherein the encapsulation header includes the global VLAN tag; and forwarding circuitry configured to identify, from the plurality of ports, an egress port for the packet based on the global VLAN tag.