Protocol Action: IP Header Compression over PPP to Proposed Standard
The IESG <iesg-secretary@ietf.org> Tue, 08 April 2003 15:28 UTC
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From: The IESG <iesg-secretary@ietf.org>
Subject: Protocol Action: IP Header Compression over PPP to Proposed Standard
Date: Tue, 08 Apr 2003 11:15:26 -0400
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The IESG has approved the Internet-Draft 'IP Header Compression Over PPP" <draft-koren-pppext-rfc2509bis-03.txt> as a Proposed Standard. This document is not the product of a working group. It was given a four week Last Call. The IESG contact persons are Allison Mankin, Jon Peterson Thomas Narten. Technical Summary The IP Header Compression (IPHC) defined in RFC2507 may be used for compression of both IPv4 and IPv6 datagrams or packets encapsulated with multiple IP headers. IPHC is also capable of compressing both TCP and UDP transport protocol headers. The IP/UDP/RTP header compression defined in RFC2508 and Enhanced Compressed RTbP (ECRTP) fits within the framework defined by IPHC so that it may also be applied to both IPv4 and IPv6 packets. In order to establish compression of IP datagrams sent over a PPP link each end of the link must agree on a set of configuration parameters for the compression. The process of negotiating link parameters for network layer protocols is handled in PPP by a family of network control protocols (NCPs). Since there are separate NCPs for IPv4 and IPv6, this document defines configuration options to be used in both NCPs to negotiate parameters for the compression scheme. This document obsoletes RFC 2509, adding two new suboptions to the IP header compression configuration option. One suboption negotiates usage of ECRTP and other suboption negotiates header compression for only TCP or only non-TCP packets. IPHC relies on the link layer's ability to indicate the types of datagrams carried in the link layer frames. In this document, nine new types for the PPP Data Link Layer Protocol Field are defined along with their meaning. Working Group Summary The PPPEXT working group gave a nominal review to this bis document and did not find errors. Protocol Quality/Review This document was reviewed for the IESG by Allison Mankin and Thomas Narten.