Transcript Comcast Wi-Fi Servicess
TR-69 Overview
Ivan Ong Comcast Technology + Product Development (T+PD) Office of the CTO
Agenda
• • • • • •
Introduction Overview of TR-69
•
TR-69 Architecture Differences and advantages of TR-69 technology vs SNMP TR-69 Breakdown TR-69 Screenshots / Use-cases TR-69 deployments, progress
Page 2
Terms
• • • • • • • •
CPE – Customer Premise Equipment or the device that is being managed. Examples: Wireless Gateway Router, VoIP Digital Adapter, NAS (Networked Attached Storage) Drive, Settop Boxes, etc.
ACS – Auto Configuration Server, management server for CPE. Part of the Service Provider’s OSS / BSS (Operational or Billing Support Systems) XML – Extensible Markup Language. Set of encoding rules that is both human and machine readable.
SOAP – Simple Object Access Protocol, messaging framework for web services, uses XML as its message format.
RPC – Remote Procedure Call, built-in procedure that can invoke another process on a remote computer/network.
Data Model – Set of objects defined for management of a CPE.
SNMP – Simple Network Management Protocol, protocol for managing devices on IP network.
STUN – Simple Traversal of User Datagram Protocol through Network Address Translators (NAT)
Page 3
What is TR-69?
• • • • •
Technical Report defined by Broadband Forum XML SOAP Protocol Specification to remotely managed end user devices Enables communication between Customer Premise Equipment (CPE) and Auto-Configuration Server (ACS) Base Management Functions:
•
Auto-Configuration
•
Dynamic Service Provisioning
•
Software/Firmware Image Management
•
Status and Performance Monitoring
•
Diagnostics
Page 4
TR-69 Architectural Framework
OSS/BSS Policy Scope of CPE WAN Management Protocol (CWMP):
ACS Southbound Interface
Call Center Auto-Configuration Server (ACS) ACS Northbound Interface Managed Internet Gateway Device Managed LAN Device Managed LAN Device Managed LAN Device
Page 5
TR-69 Remote Management of Home Devices on Private Network
STUN Server STUN Binding Messages IPTV STB Wireless Home Gateway Router ACS Inform Messages VoIP Digital Adapter • • STUN Server enables ACS to send Connection Requests to devices in customers home that reside on a private network STUN protocol used to provide public address and port to ACS Page 6
TR-69 Extensions
• What can TR-69 be used for?
• Manage VoIP Analog Telephone Adapters, [DSL] Modems, Residential Gateways, IP Settop Boxes • Extensions define data models for different devices: • TR-98 – gateway devices (DSL modems w/ built in routers) • TR-181 – Device Data Model • TR-104 – VoIP devices • TR-106 – Baseline data model structure • TR-110 – reference model for VoIP configuration • TR-111 – encompasses remote mgmt (now obsolete, requirements incorporated in TR69 Annex G) Page 7
TR-69 Advantages/Disadvantages Advantages
• Device Configuration, troubleshooting, firmware upgrades, user management, monitoring.
• Enables Service Provider to offer dynamic services from a centrally managed instance.
• Reduces truck rolls/support calls by ability to managed devices with more granularity, proactive monitoring, and automated processes. •
Disadvantages
Must cross several layers of protocols and methods that must interoperate • Interpretation of the Technical Report by various manufacturers differs, no standard certification.
Page 8
TR-69 vs SNMP
SNMP • SNMP is a simple method to monitor and receive traps for our devices • Uses Community String (SNMPv2) for authentication • Limited to the demarcation device within a subscriber’s home.
TR-69 • CPE Wan Management Protocol is designed to provide a high degree of security and is scalable. • Basic security allows for less robust CPE implementations • Greater security for advanced CPE implementations • Prevents tampering with the management [transactions or] functions of a CPE and/or ACS • Prevent theft of service Page 9
TR-69 Protocol Stack
CPE/ACS Management Application RPC Methods SOAP HTTP SSL/TLS TCP/IP
Page 10
TR-69 Call Flow CPE
Open connection SSL initiation HTTP post
Inform
request HTTP response
Inform
response HTTP post HTTP response
GetParameterValues
request HTTP post
GetParameterValues
response HTTP response
SetParameterValues
request HTTP post
SetParameterValues
response HTTP response Close connection
ACS
Page 11
Sample Remote Procedure Calls List
• Inform • GetParameterAttributes • SetParameterAttributes • GetParameterValues • SetParameterValues • AddObject • DeleteObject • Reboot • Download • Upload • FactoryReset Page 12
ACS ScreenShots
Replacement Gateway receives default gateway’s configuration or last saved configuration Page 13
ACS ScreenShots
Configure NAS device for Web access and connectivity to home devices Page 14
ACS ScreenShots
Online gaming performance degradation. Able to view statistics of packets sent/received, errors.
Page 15
ACS ScreenShots
Access WebCam interface for configuration & setup Page 16
ACS ScreenShots
Management Console to define policies Page 17
TR-69 – Actively Used by Other MSO
• • • • • • • • • Bell Canada AT&T Telefonica China Mobile Frontier Telus CenturyLink Hughes Qwest Page 18
TR-69 – Estimated Timelines
Cablelabs Wifi Provisioning Framework InterOp with some Gateway Vendors Q3-Q4 2011 Q1 2012 Q2 – Q3 2012 Approximately 13% of TR-98 supported on Motorola CPE SBG6580 Data Model still being defined Q3 – Q4 2012 Q1 2013 Vendors contacted Cablelabs members considering TR69 beyond WiFi GW Cablelabs TR69 test with other vendors for Wifi GW Approximately 8% of TR-181 supported on SMC CPE D3GN4 Page 19
References
1. ALU Motive TR-69 Overview 1. Broadband Forum, http://www.broadband-forum.org/technical/trlist.php
2. ClearAccess, Achieveing a Superior Customer Experience.pdf
1. University of New Hampshire Interoperability Lab, http://www.iol.unh.edu/services/testing/dsl/.../
TR-069
_
crash
_
course
.ppsx
1. Wikipedia - http://en.wikipedia.org/wiki/TR-069 Page 20