MIB Reference Manual (Version 3.0)

MIB Reference Manual Version 3.0 1-9
MIB-II Object Types
1
sysServices
Syntax Integer of size 0 to 127
Access Read-only
Status Mandatory
Description A value that 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, for which this node performs transactions, 2 raised to (L - 1) is added to the sum.
For example, a node that primarily performs routing functions has a value of 4 (2
3-1
). In contrast, a
node that is a host and offers application services, has 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. (For example, repeaters)
2 = datalink/subnetwork. (For example, bridges)
3 = internet. (For example, IP gateways)
4 = end-to-end. (For example, IP hosts)
7 = applications. (For example, mail relays)
Note: For systems including OSI protocols, layers 5 and 6 may also be counted.
The return value is always 79.