home *** CD-ROM | disk | FTP | other *** search
-
- IP Payload Compression Protocol (ippcp)
- ---------------------------------------
-
- Charter
- Last Modified: 21-Jul-97
-
- Current Status: Active Working Group
-
- Chair(s):
- Naganand Doraswamy <naganand@baynetworks.com>
-
- Internet Area Director(s):
- Jeffrey Burgan <burgan@home.net>
- Thomas Narten <narten@raleigh.ibm.com>
-
- Internet Area Advisor:
- Thomas Narten <narten@raleigh.ibm.com>
-
- Mailing Lists:
- General Discussion:ippcp@external.cisco.com
- To Subscribe: mailer@cisco.com
- In Body: subscribe/unsubscribe ippcp [email_addr] in body
- Archive: ftp://ftp-eng.cisco.com/ippcp/ippcp
-
- Description of Working Group:
-
- Lossless data compression has commonly been deployed in layers below IP
- (PPP being one example). However, the anticipated deployment of
- higher-layer encryption protocols (e.g., IPSec) threatens to reduce the
- effectiveness of lower-layer compression techniques since encrypted
- data cannot be compressed. The IP Payload Compression Protocol Working
- Group will develop protocol specifications that make it possible to
- perform lossless compression on individual payloads before the payload
- is processed by a protocol that encrypts it. These specifications will
- allow for compression operations to be performed prior to the
- encryption of a payload by such protocols as IPSec.
-
- The Working Group will focus on the compression of independent payloads
- (i.e., independent datagrams) in a stateless manner. By stateless, we
- mean that decompression of a received packet does not rely on correct
- reception or correct ordering of previous packets.
-
- The immediate problem the Working Group will address is the development
- of a payload compression protocol for use in conjunction with IPSec.
- The working group will develop its specifications to support both IPv4
- and IPv6. Although the primary motivation for this WG is the need to
- compress packets when IPSec is used, the WG will develop an
- architecture that does not preclude its use with other potential
- protocols or the absence of IPSec.
-
- The working group will identify and document the mechanisms that allow
- two communicating parties to negotiate the use of compression as well
- as the compression format to be employed. The Working Group will
- consider defining extensions to ISAKMP to support the negotiation of
- compression parameters. Use of ISAKMP as the immediate effort shall not
- preclude compression in the absence of IPsec. Alternate negotiation
- mechanisms (or even static negotiation), if appropriate, shall be
- identified and extended as needed to accommodate the use of payload
- compression functionality. Since compression will be negotiated,
- existing implementations of IP will interoperate with implementations
- that support compression.
-
- The output of this WG will consist of a base architectural document
- that provides the framework for how compression will be done (i.e.,
- defines the compression "shim"), together with one or more documents
- giving specific compression algorithms and formats. The architectural
- document will describe how different compression algorithms can be
- negotiated and supported, but the documenting of specific compression
- algorithms will be done elsewhere (i.e., in standalone documents). A
- registration mechanism for various compression formats will be
- specified as part of the base protocol. If possible, an existing
- registration mechanism for compression formats shall be used (e.g.,
- Compression Control Protocol options of PPP).
-
-
-
-
-
-
- Goals and Milestones:
-
- Jul 97 Submit Internet-Draft on Base Architecture for IP Payload
- Compression Protocol
-
- Jul 97 Solicit drafts of compressed data formats from working group
-
- Aug 97 Meet in Munich to discuss submitted drafts
-
- Aug 97 Revise drafts to reflect working group discussion/inputs
-
- Oct 97 Submit IP Payload Compression Protocol architectural document
- to the IESG for consideration as a Proposed Standard.
-
- Oct 97 Submit specific compression transform document(s) to the IESG
- for consideration as a Proposed Standard or as Informational
- RFC.
-
- Oct 97 Submit document definining mechanism for using ISAKMP to
- negotiate compression formats to the IESG for consideration as
- Proposed Standard.
-
- Dec 97 Meet in Washington, DC to discuss implementation issues
- relating to IP Payload Compression Protocol, compressed data
- format drafts, and possible future work of the group
-
- Jan 98 AD review of WG. Revise charter or close group down.
-
-
- Internet-Drafts:
-
- Posted Revised I-D Title <Filename>
- ------ ------- ------------------------------------------
- Jul 97 Oct 97 <draft-ietf-ippcp-protocol-01.txt>
- IP Payload Compression Protocol (IPComp)
-
- Request For Comments:
-
- None to date.
-