Title : LC-PCN - The Load Control PCN solution Author(s) : L. Westberg, et al. Filename : draft-westberg-pcn-load-control-00.txt Pages : 30 Date : 2007-5-25

There is an increased interest of simple and scalable resource provisioning solution for Diffserv network. The Load Control PCN (LC-PCN) addresses the following issues: 1. Admission control for real time data flows in stateless Diffserv Domains 2. Flow termination: Termination of flows in case of exceptional events, such as severe congestion after re-routing.

Admission control in a Diffserv stateless domain is a combination of: 1. Probing, whereby a probe packet is sent along the forwarding path in a network to determine whether a flow can be admitted based upon the current congestion state of the network 2. Admission control based on data marking, whereby in congestion situations the data packets are marked to notify the egress node that a congestion occurred on a particular ingress to egress path.

The scheme provides the capability of controlling the traffic load in the network without requiring signaling or any per-flow processing in the core routers. The complexity of Load Control is kept to a minimum to make implementation simple.

A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-westberg-pcn-load-control-00.txt

To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings.

Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-westberg-pcn-load-control-00.txt".

A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

Internet-Drafts can also be obtained by e-mail.

Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-westberg-pcn-load-control-00.txt".

NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages.

Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. Content-Type: text/plain Content-ID: <2007-5-25104911.I-D@ietf.org>