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By Gilbert Held

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Vers Field The Vers field is four bits in length and is used to identify the version of the IP protocol used to create an IP datagram. The current version of IP is v4, with the next generation of IP assigned version number 6. The four bits in the Vers field support 16 version numbers. 2. 2, note that the reason the next-generation Internet Protocol is IPv6 instead of IPv5 relates to the fact that version 5 was previously assigned to an experimental protocol referred to as the Streams 2 Protocol.

However, the primary source of such documents is the IETF. The actual submission of an RFC begins as a memorandum that is reviewed by the Internet Engineering Steering Group (IESG) that operates under the IAB. If the memorandum is approved, the IESG sends it to an RFC editor. At this point in time, the document becomes a draft RFC. Draft RFC A draft RFC is considered a public document, and a peer review process occurs during which comments are received and reviewed concerning whether or not the RFC removes its draft status and is distributed as an RFC standard.

In this situation, the Service Type byte is renamed as the DiffServe (Differentiated Service) byte. The Internet Engineering Task Force is currently examining the potential use of the DiffServe byte as a mechanism to define an end-to-end QoS capability through an IP network. Total Length Field The Total Length field indicates the total length of an IP datagram in bytes. This length indicates the length of the IP header to include options, followed by a TCP or UDP header or another type of header, as well as the data that follows that header.

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