Transcript SNMP vs. CMIP

SNMP vs. CMIP
By: Kamyar Partovi
Ravneet Johal
CS 158B
SNMP vs. CMIP
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Agenda
Introduction
What is SNMP?
What is CMIP?
SNMP vs. CMIP
Conclusion
SNMP vs. CMIP
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Introduction
Network management is essential for
companies.
Exchanging information become more efficient.
Network management needs protocols.
Two important protocols:
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Simple Network Management Protocol (SNMP)
Common Management Information Protocol (CMIP)
SNMP vs. CMIP
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SNMP
Why SNMP ?
SNMP is located in Application layer.
SNMP responsible for exchanging data between network
devices.
SNMP has three mechanisms:
1. Managed devices: Collecting and sorting data.
2. Agents: Managing data.
3. Network management system (NMS): Implements the application
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Advantages and Disadvantages
Advantages:
 Easy to use
 Expandability
Disadvantages:
 Weak security
 Too simple!
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CMIP
Created in 1988 by Internet Activities Board
(IAB).
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Government and Corporations invested.
Common Management Information Services
Element (CMISE).
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Information exchange between management stations
and management agents.
Remote Operations Service Element (ROSE).
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Sends and receives Protocol Data Units (PDUs).
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CMIP
11 Data units or operations
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M-EventReport
M-EventReport-Confirmed
M-Get
M-Linked-Reply
M-Set
M-Set-Confirmed
M-Action
M-Action-Confirmed
M-Create
M-Delete
M-Cancel-Get
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SNMP vs. CMIP
Similar operations:
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SNMP vs. CMIP
What SNMP is to TCP/IP is what CMIP is
to OSI.
MIB
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More objects in CMIP.
Security
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Community name; authorization, access
control, and security logs.
Polling
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Reporting and polling.
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SNMP vs. CMIP
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Conclusion
In our opinion
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SNMP and CMIP should not be compared.
LANs and WANs
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SNMP better for LANs; CMIP better for WANs
Analogies
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High-level programming language and assembly
language.
Like two different religions.
Religions should not be compared.
Network Manager acts as God.
Sacrifices (celibacy).
Services (help the poor).
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