Fixed Network curriculam development SNMP.ppt

Snmp

1. OBA100001
SNMP
Fixed Network Curriculum
Development Section

2. Objectives
Master the operation principle of
SNMP
Upon completion of this course, you will be able to:

3. Basic Concepts of SNMP
SNMP, Simple Network Management Protocol
Used to ensure management information is transferred betwee
n any two points
Only requires unconfirmed transport layer protocol UDP
SNMP is independent of the managed equipment. Both the IP
device (e.g. router and bridge) and the ATM equipment can be
managed with SNMP
SNMP V1 is most widely used

4. SNMP Position in TCP/IP
IP
Link Protocols
UDPTCP
FTP HTTP RIP
Link Layer
Network Layer
Transport Layer
Application Layer
161/162
Physical Layer Physical Layer
SNMP

5. SNMP Structure
SNMP defines the transfer of management information
between NMS and Agent
NMS
UDP Port162
UDP Port161
AGENT
Response Trap
Managed Equipment
Request

6. SNMP Protocol Stack
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SNMP Application
UDP
IP
Physical Network
SNMP Agent
Physical Network
IP
UDP
SNMP Manager
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SNMP Application
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7. MIB (Management Information Base )
MIB, the Management Information Base, is an abstract
collection of all managed objects
Organized in tree structure, MIB is also called MIB tree
Each managed object corresponds with a leaf node of the tree
NM implements the management for equipment by reading/wri
ting managed object in MIB

8. Identity Authentication and Access Mode of
SNMP V1
SNMP community is the collection of a SNMP agent where
identity authentication and access authorization have been
defined and a group of SNMP managers
Identity authentication: checking the community name
Access mode: read-only and read-write