Verilink PRISM 41TDM (34-00275.4) Product Manual - Manual (Page 62)

54 A PPENDIX A: SNMP A GENT
sysName: (read-write)
An administratively-assigned name for this managed node. By convention, this is
the node's fully-qualified domain name. The default is ‘no system name’.
sysLocation: (read-write)
The physical location of this node (e.g.,‘telephone closet, 3rd floor'). The default is
‘no system location’.
sysServices: (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:
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. The
PRISM 41TDM returns a value of 72 representing a host offering application
services.
ifTable ifNumber: (read-only)
The number of network interfaces (regardless of their current state) present on this
system. There are always a minimum of 3 (SLIP, Network - DDS, and Port 1). The
optional interface is an NIC (Ethernet or Token Ring) card.
ifIndex: (read-only)
A unique value for each interface. Its value ranges between 1 and the value of
ifNumber. The value for each interface must remain constant at least from one
re-initialization of the entity's network management system to the next
re-initialization.
With NIC Without NIC
1 - SLIP 1 - SLIP
2 - NIC 2 - DDS
3 - DDS 3- DTE A Port
4 - DTE A Port 4 - DTE B Port (TDM only)
5 - DTE B Port (TDM (only)