Control-Plane and User-Plane Separation BNG Simple Control Channel Protocol (S-CUSP)

Document Type Expired Internet-Draft (individual)
Authors Shujun Hu  , Donald Eastlake  , Mach Chen  , Fengwei Qin  , Zhenqiang Li  , Tee Chua  , Daniel Huang 
Last updated 2020-01-04 (latest revision 2019-07-03)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies the Simple Control Plane (CP) and User Plane (UP) Separation Broadband Network Gateway (BNG) control channel Protocol (S-CUSP) for communications between a CP and a UP. S-CUSP is designed to be flexible and extensible so as to easily allow for the addition of further messages and data items to meet future requirements.


Shujun Hu (
Donald Eastlake (
Mach Chen (
Fengwei Qin (
Zhenqiang Li (
Tee Chua (
Daniel Huang (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)