 funchordsHelloPremium,MVM join:2001-03-11 Yarmouth Port, MA kudos:5 | reply to Noah Vail
Re: Re-Re-read what Comcast posted. said by Noah Vail:Discrimination is required for Prioritization. You can't so much as route a packet if you don't examine it first and make a judgment about it. And for that, and ISP only needs to examine the IP header (Layer 3). You don't need to interpret anything after the header (which would be TCP/UDP for layer 4 or anything they transport, such as KAD,FTP,MFTP,HTTP, etc.). All the bits that the ISP needs to prioritize are also located in the IP header.
RFC 2474 Definition of the Differentiated Services Field (DS 2474 Field) in the IPv4 and IPv6 Headers (an Internet Official Protocol Standard) -- Robb Topolski -= funchords.com =- Hillsboro, Oregon FCC Public Hearing on the Future of the Internet - Thursday, April 17th - Stanford Univ., Calif. |