Paradyne 3151, Operator'S Manual

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F. SNMP MIB Objects
F-4
March 2001 3150-A2-GB24-10
System Group – “sysServices” Object (system 7)
This object provides a value which indicates the set of services that are potentially
offered by the CSU. Only the following values are supported by the CSU.
„
physical(1) – Layer 1 functionality for all interfaces.
„
datalink/subnetwork(2) – Layer 2 functionality (SLIP, PPP) for the COM and
MODEM ports.
„
internet(4) – Layer 3 functionality (IP) for all management links.
„
end-to-end(8) – Layer 4 functionality (UDP) for all management links.
Therefore, set this object to 15 (the sum of 1 + 2 + 4 + 8).
Interface Group, MIB II
The Interface Group consists of an object indicating the number of interfaces
supported by the unit and an interface table containing an entry for each interface.
The CSU provides an entry in the interface table for the network interface, the DTE
interface, the COM port, and the MODEM port, if they apply. The following sections
provide clarification for objects contained in the Interface Group where it is not
clear how the object definition in MIB II is related to the CSU.
Interface Group – “ifNumber” Object (interfaces 1)
This variable contains the maximum number of MIB II supported interfaces
possible across the 31xx Series product line (9). This is different from the MIB
description, which is defined as the number of interfaces on the particular device.
This change allows the use of the same ifIndexes across all 31xx Series models.
Interface Group – “ifIndex” Object (ifEntry 1)
This object provides the index into the ifTable and typically into tables in other
MIBs also. The values of the ifIndex object do not vary between models even
though not all indexes are supported for a particular model. When an unsupported
index is accessed, “noSuchName” is returned.
The following are the values of the ifIndexes for all CSU models:
„
1 – Net T1
„
2 – DTE T1
„
3 – COM port
„
4 – Modem port