Management Information Base for Version 2 of the Simple Network Management Protocol (MIB for SNMPv2)
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Transcript of Management Information Base for Version 2 of the Simple Network Management Protocol (MIB for SNMPv2)
![Page 1: Management Information Base for Version 2 of the Simple Network Management Protocol (MIB for SNMPv2)](https://reader036.fdocuments.us/reader036/viewer/2022083008/56649f4c5503460f94c6c82e/html5/thumbnails/1.jpg)
Management Information Base for Version 2 of the Simple
Network Management Protocol
(MIB for SNMPv2)
![Page 2: Management Information Base for Version 2 of the Simple Network Management Protocol (MIB for SNMPv2)](https://reader036.fdocuments.us/reader036/viewer/2022083008/56649f4c5503460f94c6c82e/html5/thumbnails/2.jpg)
1. What is MIB?
• Management Information Base (MIB) is the set of variables (database) that a router running SNMP maintains.
• MIB specifies the data items a host or router must keep and the operations allowed on each.
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2. What is the relation between MIB and SNMP?
• SNMP does not specify exactly which data can be accessed.
• MIB is a separated standard dealing with that.
• Keeping MIB definition independent of network management protocol (SNMP) has advantages for both vendors and users.
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3. What kind of information is in MIB?
Categories• System• interface• add.trans• ip
• icmp• tcp• udp• bgp
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Examples of MIB variables
MIB variables category Meaning
SysUptime system Time since last reboot
IfMtu Interface MTU for a particular interface
IpInReceives Ip Number of diagrams received
IpRoutingTable Ip IP routing table
TcpMaxConn Tcp Maximum TCP connections allowed
tcpInSegs tcp Number of segments TCP has received
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4. How are variables in MIB defined?
• The rules: Structure of Management Information (SMI)
• The notation: Abstract Syntax Notation 1 (ASN.1)
• The names: object identifier name space
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What does SMI do?
• Place restriction on the types of variables allowed in MIB;
• Specify the rules for naming those variables;
• create rules for defining variable type.
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hierarchy
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Summary
• SNMP (Simple Network Management Protocol)
• MIB (Management Information Base)• SMI (Structure of Management Information)
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References
• RFC 1450, 1907 (MIB for SNMPv2)
• RFC 1441 (Introduction to SNMpv2)
• RFC 1442, 1902 SMI for SNMPv2
• Specification of ASN.1, ISO