Patent ID: 9516146
Filing Date: 2016-12-06
CPC Classification: H04L

Claim Text:
1. A method for parsing an Internet Protocol version 6 (IPv6) network frame received by a networking device, the method comprising: evaluating a current header of the IPv6 network frame to determine whether a header immediately following the current header is an IPv6 extension header of a chain of IPv6 extension headers or an upper-layer header of the IPv6 network frame, wherein each current header in the IPv6 network frame includes a respective next header field describing the header immediately following the current header and wherein the upper-layer header corresponds to a layer higher than the layer at which the method for parsing is performed, the current header being a fixed header or an IPv6 extension header of the chain of IPv6 extension header; when determining, via the next header field of the current header, that the header immediately following the current header is an IPv6 extension header of the chain of IPv6 extension headers, when determining, via the next header field of the current header, that the header immediately following the current header is the upper-layer header, make forwarding decision based on the upper-layer header.