What is Network Management?

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Basic tasks that fall under this category are: What is Network Management? •Fault Management •Dealing with problems and emergencies in the network (router stops routing, server loses power, etc.) •Performance Management •How smoothly is the network running? •Can it handle the workload it currently has? •Configuration Management •Keeping track of device settings and how they function

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Fault Management. Configuration Management. Dealing with problems and emergencies in the network (router stops routing, server loses power, etc.). Keeping track of device settings and how they function. Performance Management. How smoothly is the network running? - PowerPoint PPT Presentation

Transcript of What is Network Management?

Page 1: What is Network Management?

Basic tasks that fall under this category are:

What is Network Management?

What is Network Management?

•Fault Management•Fault Management

•Dealing with problems and emergencies in the network (router stops routing, server loses power, etc.)•Dealing with problems and emergencies in the network (router stops routing, server loses power, etc.)

•Performance Management•Performance Management

•How smoothly is the network running? •Can it handle the workload it currently has?•How smoothly is the network running? •Can it handle the workload it currently has?

•Configuration Management•Configuration Management

•Keeping track of device settings and how they function•Keeping track of device settings and how they function

Page 2: What is Network Management?

VersionsVersions

•Two major versions SNMPv1, SNMPv2

•SNMPv1 is the recommended standard

•SNMPv2 has become split into:

•SNMPv2u - SNMPv2 with user-based security

•SNMPv2* - SNMPv2 with user-based security and additional features

•SNMPv2c - SNMPv2 without security

Page 3: What is Network Management?

What is SNMP?What is SNMP?

• SNMP is a tool (protocol) that allows for remote and local management of items on the network including servers, workstations, routers, switches and other managed devices.

• Comprised of agents and managers

•Agent - process running on each managed node collecting information about the device it is running on.

•Manager - process running on a management workstation that requests information about devices on the network.

Page 4: What is Network Management?

Advantages of using SNMPAdvantages of using SNMP

• Standardized

• universally supported

• extendible

• portable

• allows distributed management access

• lightweight protocol

Page 5: What is Network Management?

SNMP & The OSI ModelSNMP & The OSI Model

Management and Agent APIs7 Application LayerSNMP

6 Presentation Layer ASN.1 and BER5 Session Layer RPC and NetBIOS4 Transport Layer TCP and UDP3 Network Layer IP and IPX2 Data Link Layer1 Physical Layer

Ethernet, Token Ring, FDDI

Page 6: What is Network Management?

SNMP network management is based on three parts:

The Three Parts of SNMPThe Three Parts of SNMP

•Structure of Management Information (SMI)•Structure of Management Information (SMI)•Rules specifying the format used to define objects managed on the network that the SNMP protocol accesses

•Management Information Base (MIB)•Management Information Base (MIB)•A map of the hierarchical order of all managed objects and how they are accessed

•SNMP Protocol•SNMP Protocol•Defines format of messages exchanged by management systems and agents.•Specifies the Get, GetNext, Set, and Trap operations


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