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SNMP Standard MIBs

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MIB-II

Internet Full Standard (RFC 1213) a superset of MIB-I (RFC 1156)

the most mportant and !as" MIB spe"f"aton#

"o$ern% a !road ran%e of mana%ed o!&e"ts "onssts of 1' %roups of o!&e"ts

all o!&e"ts n MIB-II are mandator !ut onl

%roups appl"a!le to mana%ed de$"es need to !e

mplemented

e*%*# !rd%e or router need not mplement the t"p %roup

why not?

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MIB-II

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MIB-II GroupsGroup Description

system overall information about the system

interfaces information about the interfaces from the

system to a networ

at description of address translation table for

internet-to-subnet address mappin!

ip information related to IP on this system

icmp information related to I"MP on this system

tcp information related to #"P on this system

udp information related to $DP on this system

egp information related to %GP on this system

transmission information about the transmission schemes

and access protocols at each system interface

snmp information related to SNMP on this system

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MIB-II System Group

system &mib-' ()

sysDescr &()

sys*b+ectID &')

sys$p#ime &,)

sys"ontact &)

sysName &.)

sys/ocation &0)

sysServices &1)

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System Group *b+ectsObject Syntax Access Description

sysDescr DisplayString RO A description of the entity, such as

(SIZE (0 ... 2!! hard"are, operating syste#, etc.

sysObjectID O$%E&' IDE'I)IER RO 'he *endor+s authoritati*e identification

of the net"or #anage#ent su-syste#

contained in the entity.

sysUpTime 'i#e'ics RO 'he ti#e since the net"or #anage#ent

portion of the syste# "as last reinitalied.

sysContact DisplayString R/ 'he contact infor#ation

(SIZE (0 ... 2!! of the contact person for this

#anaged node.

sysName DisplayString R/ An ad#inistrati*ely assigned na#e for

(SIZE (0 ... 2!! this #anaged node.

sysLocation DisplayString R/ 'he physical location of this node

(SIZE (0 ... 2!!

sysServices I'EER (0 ... 12! RO A *alue that indicates the set of ser*ices

this entity pri#arily offers

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sysServices Meanin!s

Service Layer Value Application 34

'ransport 4 5

et"or, 6 4

Data7lin, 2 2 8hysical 1 1

E9a#ples: repeater (physical de*ice! ; 1

-ridge (data7lin, de*ice! ; 2router (net"or, de*ice! ; 2 < 4 ; 3

/=S host ; 34 < 5 ; 2

8& ; 34 < 5 < 4 ; 3

printer ; 34

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2%3DING

Read Chapter 6 Standard MIBs