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Pertemuan 08Remote Monitoring

Matakuliah : H0372/Manajemen Jaringan

Tahun : 2005

Versi : 1/0

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Learning Outcomes

Pada akhir pertemuan ini, diharapkan mahasiswa akan mampu :

• Menguraikan peran Remote Monitoring

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Outline Materi

• Ketentuan RMON

• Protokol

• Mekanisme

• Informasi yang dikumpulkan

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Network with RMONs

Backbone Network

Remote LAN NMS

RouterSwitch

Ethernet Probe

EthernetProbe

Local LAN

Router withRMON

Router

Remote LANProbe

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RMON

– Remote Network Monitoring, RFC 1757– Design goals

• offline operation• proactive monitoring• problem detection and reporting• value-added data• multiple managers

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RMON Components

• RMON Probe• Data gatherer - a physical device

• Data analyzer• Processor that analyzes data

• RMON Remote Network Monitoring• Standards-based network management protocol• Allows network information to be gathered at a single workstation• Defines additional MIBs to provide a richer set of data about network usage

DataAnalyzer

RMONProbe

BACKBONENETWORK

SNMPTraffic

SNMPTraffic

LAN

RouterRouter

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RMON Benefits

• Monitors and analyzes locally and relays data; less load on the network

• Needs no direct visibility by NMS; more reliable information

• Permits monitoring on a more frequent basis and hence faster fault diagnosis

• Increases productivity for administrators

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RMON MIB

rmonConformance (20)

probeConfig (19)

usrHistory (18)

rmon (mib-2 16)

statistics (1)history (2)

alarm (3)host (4)

hostTopN (5)matrix (6)

filter (7)capture (8)

event (9)

a1Matrix (17)

a1Host (16)n1Matrix (15)

n1Host (14)

addressMap (13)protocolDist (12)

protocolDir (11)

Token Ring (10)

RMON1 Extension

RM

ON

1

RM

ON

2

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• RMON1: Ethernet RMON groups • rmon 1 - rmon 9

• RMON1: Extension: Token ring extension • rmon 10

• RMON2: Higher layers (3-7) groups • rmon 11 - rmon 20

RMON MIB

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RMON Groups and Functions

Host and Conversation Statistics

Token Ring Statistics

Ethernet Statistics

Filter Group

RemotelyMonitoredNetwork

DataGathering

PacketFiltering

ChannelFiltering

PacketCapture

NetworkManager

AlarmGeneration

EventGeneration

HostStatistics

HostTopNStatistics

EthernetStatistics

EthernetHistory

Token RingStatistics

Token RingHistory

MatrixStatistics

HistoryControl

HistoryControl

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• Probe gathers data• Functions

• Statistics on Ethernet, token ring, and hosts / conversations

• Filter group filters data prior to capture of data

• Generation of alarms and events

RMON Groups and Functions

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RMON2

• Applicable to Layers 3 and above• Functions similar to RMON1• Enhancement to RMON1• Defined conformance and compliance

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RMON2 MIB

Group OID Function TablesProtocolDirectory

rmon 11 Inventory of protocols protocolDirTable

ProtocolDistribution

rmon 12 Relative statistics onoctets and packets

protocolDistControlTableprotocolDistStatsTable

AddressMap

rmon 13 Mac address tonetwork address on theinterfaces

addressMapControlTableaddressMapTable

NetworkLayer Host

rmon 14 Traffic data from and toeach host

n1HostControlTablen1HostTable

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RMON2 MIB

Group OID Function TablesApplicationLayer Matrix

rmon 17 Traffic data byprotocol betweenpairs of hosts

a1MatrixSDTablea1MatrixDSTablea1MatrixTopNControlTablea1MatrixTopNTable

User HistoryCollection

rmon 18 User-specifiedhistorical data onalarms andstatistics

usrHistoryControlTableusrHistoryObjectTableusrHistoryTable

ProbeConfiguration

rmon 19 Configuration ofprobe parameters

serialConfigTablenetConfigTabletrapDestTableserialConnectionTable

RMONConformance

rmon 20 RMON2 MIBCompliances andCompliance Groups