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Cabletron's Light-weight Flow Admission Protocol Specification Version 1.0 (RFC2124)

IP.com Disclosure Number: IPCOM000002678D
Original Publication Date: 1997-Mar-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 17 page(s) / 45K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Amsden: AUTHOR [+5]

Abstract

Light-weight Flow Admission Protocol, LFAP, allows an external Flow Admission Service (FAS) to manage flow admission at the switch, allowing flexible Flow Admission Services to be deployed by a vendor or customer without changes to, or undue burden on, the switch.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 7% of the total text.

Network Working Group P. Amsden

Request for Comments: 2124 J. Amweg

Category: Informational P. Calato

S. Bensley

G. Lyons

Cabletron Systems Inc.

March 1997

Cabletron's Light-weight Flow Admission Protocol Specification

Version 1.0

Status of this Memo

This memo provides information for the Internet community. This memo

does not specify an Internet standard of any kind. Distribution of

this memo is unlimited.

Abstract

Light-weight Flow Admission Protocol, LFAP, allows an external Flow

Admission Service (FAS) to manage flow admission at the switch,

allowing flexible Flow Admission Services to be deployed by a vendor

or customer without changes to, or undue burden on, the switch.

Specifically, this document specifies the protocol between the switch

Connection Control Entity (CCE) and the external FAS. Using LFAP, a

Flow Admission Service can: allow or disallow flows, define the

parameters under which a given flow is to operate (operating policy)

or, redirect the flow to an alternate destination. The FAS may also

maintain details of current or historical flows for billing, capacity

planning and other purposes.

Table of Contents

1. Introduction .................................................. 2

2. Message Flows ................................................. 3

3. Message Contents and Format ................................... 4

3.1. IE Formats ............................................. 5

3.2. Flow Admission Request (FAR) Message ................... 14

3.3. Flow Admission Acknowledge (FAA) Message ............... 15

3.4. Flow Admission Update (FAU) Message .................... 15

3.5 Flow Update Notification (FUN) Message .................. 16

3.6. Flow Update Acknowledge (FUA) Message .................. 16

3.7. Flow Change Request (FCR) Message ...................... 17

3.8. Flow Change Acknowledge (FCA) Message .................. 17

3.9. Administrative Request (AR) Message .................... 18

3.10. Administrative Request Acknowledge (ARA) Message ...... 18

4. Error Handling ................................................ 18

4.1. FAA Related Error Handling ............................. 19

4.2. FUA Related Error Handling ............................. 19

4.3. FCA Related Error Handling ............................. 19

4.4. ARA Related Error Handling ............................. 20

5. Security Considerations ....................................... 20

6. Author's Addresses ............................................ 20

7. Referen...