materi-4 rmon

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RMON RMON Remote Monitoring www.fajarrusady.co.cc

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Page 1: Materi-4 RMON

RMONRMONRemote Monitoring

www.fajarrusady.co.cc

Page 2: Materi-4 RMON

Latar belakangLatar belakangSNMP adalah standar manajemen jaringan pd

TCP/IP.Tujuan SNMP :

bagaimana info yg akan digunakan untuk memanagemen jaringan bs dikirimkan menggunakan TCP/IP.

Perangkat SNMP ada 2 :1. Manages Nodes/Manages Devices

Node biasa yg sudah dilengkapi oleh software supaya dpt diatur menggunakan SNMP

2. NMS (Network Managemen Station)Perangkat jaringan khusus yang menjalankan soft tertentu spy dpt mengatur manages nodes.

Page 3: Materi-4 RMON

Latar belakangLatar belakangMasing-masing perangkat dlm manajemen jaringan yg menggunakan SNMP menjalankan suatu soft yang disebut SNMP Entity (SNMP Entity bertanggung jwb utk mengimplementasikan semua fungsi SNMP). SNMP Entity pd Manages nodes:1. SNMP Agen2. SNMP MIB

SNMP Entity pd NMS :1. SNMP Manager2. SNMP Application

Page 4: Materi-4 RMON

Latar belakangLatar belakangSummary:

Dengan demikian, secara keseluruhan SNMP terdiri dari sejumlah NMS yang berhubungan dengan perangkat TCP/IP biasa yang disebut managed nodes.

SNMP manager pada NMS dan SNMP agent pada managed nodes mengimplementasikan SNMP dan memungkinkan informasi manajemen jaringan dikirim.

SNMP application berjalan pada NMS dan menyediakan interface untuk administrator, dan memungkinkan informasi dikumpulkan dari MIB pada masing-masing SNMP agent.

Page 5: Materi-4 RMON

Latar belakangLatar belakangKarena jumlah informasi yg dikumpulkan oleh SNMP Agent terbatas, mereka tidak bisa mendedikasikan dirinya utk melakukan tugas manajemen jaringan.Oleh karena itu, pada situasi di mana dibutuhkan informasi jaringan yang lebih banyak dibanding yang dikumpulkan oleh perangkat biasa, administrator sering kali menggunakan hardware khusus bernama network analyzer, monitor, atau probe.Namun mereka hanya mengumpulkan statistik dan memantau event yang diinginkan oleh administrator.Disinilah RMON dibutuhkan.

Page 6: Materi-4 RMON

PengertianPengertianRMON (Remote Monitoring)

Remote Monitoring (RMON) is a standard monitoring specification that enables various network monitors and console systems to exchange network-monitoring data.

Page 7: Materi-4 RMON

Cara kerjaCara kerja

RMON collects nine kinds of information, including packets sent, bytes sent, packets dropped, statistics by host, by conversations between two sets of addresses, and certain kinds of events that have occurred.

Page 8: Materi-4 RMON

RMON DevelopmentRMON DevelopmentRMON1 defined 10 MIB groups

for basic network monitoring, which can now be found on most modern network hardware.

RMON2 (RMONv2) is an extension of RMON that focuses on higher layers of traffic above the medium access-control (MAC) layer

Page 9: Materi-4 RMON

ComparisonComparison

Page 10: Materi-4 RMON

RMON1RMON1The RMON1 MIB consists of ten groups:1. Statistics : real-time LAN statistics e.g. utilization,

collisions, CRC errors2. History: history of selected statistics3. Alarm : definitions for RMON SNMP traps to be sent

when statistics exceed defined thresholds4. Hosts : host specific LAN statistics e.g. bytes

sent/received, frames sent/received

5. Hosts top N: record of N most active connections over a given time period

6. Matrix : the sent-received traffic matrix between systems7. Filter : defines packet data patterns of interest e.g. MAC

address or TCP port8. Capture : collect and forward packets matching the

Filter9. Event : send alerts (SNMP traps) for the Alarm group10.Token Ring : extensions specific to Token Ring

Page 11: Materi-4 RMON

RMON2RMON2The RMON2 MIB adds ten more groups:

1. Protocol Directory : list of protocols the probe can monitor 2. Protocol Distribution : traffic statistics for each protocol 3. Address Map : maps network-layer (IP) to MAC-layer

addresses 4. Network-Layer Host : layer 3 traffic statistics, per each host 5. Network-Layer Matrix : layer 3 traffic statistics, per

source/destination pairs of hosts 6. Application-Layer Host : traffic statistics by application

protocol, per host 7. Application-Layer Matrix : traffic statistics by application

protocol, per source/destination pairs of hosts 8. User History : periodic samples of user-specified

variables 9. Probe Configuration : remote config of probes 10. RMON Conformance : requirements for RMON2 MIB

conformance