SYSTEMS AND METHODS FOR CONNECTING IPV4 ISLANDS OVER AN IPV6 CORE NETWORK USING IPV4 PROVIDER EDGE ROUTERS

Abstract: in some implementations, a first network device may encode internet protocol version 4 (ipv4) network layer reachability information (nlri) using internet protocol version 6 (ipv6) next hop encoding to generate encoded ipv4 nlri. the first network device may include information indicating border gateway protocol (bgp) labeled unicast (bgp-lu) in the encoded ipv4 nlri. the first network device may advertise the encoded ipv4 nlri. the first network device may establish a communication session with a second network device, wherein the communication session is established via an ipv6 core network. the first network device may forward, via the communication session, one or more ipv4 packets using the encoded ipv4 nlri.

Inventor(s): Gyan S. MISHRA

CPC Classification: H04L45/04 ({Interdomain routing, e.g. hierarchical routing})

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