2. What is Network Management (1/3)
Configuration Management
To monitor network and system configuration
information so that the effects on network operation of
various versions of hardware and software elements
can be tracked and managed.
Performance Management
To measure and make available various aspects of
network performance so that internetwork
performance can be maintained at an acceptable level.
3. What is Network Management (2/3)
Accounting Management
To measure network utilization parameters so that
individual or group uses on the network can be
regulated appropriately.
Fault Management
To detect, log, notify users of, and (to the extent
possible) automatically fix network problems to keep the
network running effectively.
4. What is Network Management (3/3)
Security Management
To control access to network resources according to
local guidelines so that the network cannot be
sabotaged (intentionally or unintentionally) and sensitive
information cannot be accessed by those without
appropriate authorization.
6. The network management system manages
device by sending commands to or receiving
reports from the agent (a program) in the devices.
The agent is responsible for executing the NMS’s
commands and reporting the status of the device it
locates in.
The Architecture of Network
Management (2/2)
7. Simple Network Management Protocol(1/2)
SNMP is a protocol that allows for remote and local
management of items on the network including
servers, workstations, routers, switches and other
managed devices.
Unlike traditional network management methods
having complicated commands, SNMP has only few
simple commands : Get, GetNext, GetBulk, Set, for
configuration and monitoring.
8. Simple Network Management Protocol(2/2)
Request
Response
Trap
Agent Process
TCP/IP
MIB-II
TCP/IP
SNMP Manager
NMS AgentCommand
Server Device
9. CPE WAN Management Protocol (TR-069)
The CPE WAN Management Protocol defines a
mechanism that encompasses secure auto-
configuration of a CPE
10. CWMP Main Capabilities (1/3)
Auto-Configuration and Dynamic Service
Provisioning
The protocol allows an ACS to provision a CPE or collection
of CPE based on a variety of criteria.
Software/Firmware Image Management
The CPE WAN Management Protocol provides tools to
manage downloading of CPE software/firmware image files.
Status and Performance Monitoring
The protocol provides support for a CPE to make available
information that the ACS may use to monitor the CPE’s
status and performance statistics.
11. Diagnostics
The protocol provides support for a CPE to make
available information that the ACS may use to
diagnose connectivity or service issues.
CWMP Main Capabilities (2/3)
12. CWMP Main Capabilities (3/3)
(may haveDHCP)
Internet, ISP network, Frame
Relay…
(TR-069)
TR-104
LAN
WAN
14. CPE/ACS Application
The application uses the CPE WAN Management
Protocol on the CPE and ACS, respectively. The
application is locally defined and not specified as
part of the CPE WAN Management Protocol
RPC Methods
The specific RPC methods that are defined by the
CPE WAN Management Protocol (TR-069)
SOAP(Simple Object Access Protocol)
A standard XML-based syntax used here to encode
remote procedure calls. Specifically SOAP 1.1
Protocol Components (2/3)
15. HTTP
Hypertext Transfer Protocol 1.1
SSL/TLS
The standard Internet transport layer security protocols.
Specifically, either SSL 3.0 (Secure Socket Layer), or
TLS 1.0
TCP/IP
Standard TCP/IP
Protocol Components (3/3)
