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System objects

sysDescr

Type Access Description

DisplayString

read-only

A textual description of the entity. This value should include the full name and version identification of the system's hardware type, software operating-system, and networking software. It is mandatory that this only contain printable ASCII characters.

sysObjectID

Type Access Description

Object Identifier

read-only

The vendor's authoritative identification of the network management subsystem contained in the entity. This value is allocated within the SMI enterprises subtree (1.3.6.1.4.1) and provides an easy and unambiguous means for determining `what kind of box' is being managed. For example, if vendor `Flintstones, Inc.' was assigned the subtree 1.3.6.1.4.1.4242, it could assign the identifier 1.3.6.1.4.1.4242.1.1 to its `Fred Router'.

sysUpTime

Type Access Description

TimeTicks

read-only

The time (in hundredths of a second) since the network management portion of the system was last re-initialized.

sysContact

Type Access Description

DisplayString

read-write

The textual identification of the contact person for this managed node, together with information on how to contact this person.

sysName

Type Access Description

DisplayString

read-write

An administratively-assign name for this managed node. By convention, this is the node's fully-qualified domain name.

sysLocation

Type Access Description

DisplayString

read-write

The physical location of this node (e.g., 'telephone closet, 3 rd floor').

sysServices

Type Access Description

Integer

read-only

A value which indicates the set of services that this entity primarily offers.

The value is a sum. This sum initially takes the value zero, Then, for each layer, L, in the range 1 through 7, that this node performs transactions for, 2 raised to (L - 1) is added to the sum. For example, a node which performs primarily routing functions would have a value of 4 (2^(3-1)). In contrast, a node which is a host offering application services would have a value of 72 (2^(4-1) + 2^(7-1)). Note that in the context of the Internet suite of protocols, values should be calculated accordingly:

Layer Functionality

1

physical (e.g., repeaters)

2

datalink/subnetwork (e.g., bridges)

3

internet (e.g., IP gateways)

4

end-to-end (e.g., IP hosts)

7

applications (e.g., mail relays)

For systems including OSI protocols, layers 5 and 6 may also be counted.