Paradyne 3164-A2, 3165-A2, 3160-A3, 3161-B3 RS-232-like MIB RFC, DS1 Fractional Group, DS1/E1 MIB

E. SNMP MIB Objects

DS1 Fractional Group, DS1/E1 MIB

The DS1 Fractional Group consists of the DS1 fractional table. This table (dsx1FracTable) is fully supported by the DSU/CSU and allows channel (time slots) to be mapped between the T1 interfaces and data ports. If an invalid channel map (e.g., two interfaces mapped to a single time slot, one interface mapped to two T1s, etc.) is received, an error will be returned to the SNMP manager. The DSU/CSU will validate all channel configurations before applying them.

Operational Note: The fractional T1 group only allows specification of an entire interface to a particular time slot on another interface (i.e., a time slot on one interface cannot be mapped to a time slot on another interface). This prevents complete mapping of time slots on the DTE Drop/Insert (DSX-1) interface to time slots on the network interface. For mapping time slots between the network and DTE T1 interfaces, the following convention is used: Time slots on the T1 interface that are mapped to another T1 interface (i.e., not a data port) are connected in ascending order. For example, if the fractional table for the network interface maps time slots 1, 3 and 5 to the DTE T1 interface and the DTE T1 interface maps time slots 10, 11 and 15 to the network the following time slots will be connected: N1 to D10, N3 to D11 and N5 to D15.

RS-232-like MIB (RFC 1317)

he “rs232” object defined by RFC 1317 is supported for all of the synchronous data ports, the MODEM port, the COM port, and the AUX port. The RS-232-like MIB consists of one object and five tables, as follows:

Number of RS-232-like ports

The General Port Table

The Asynchronous Port Table

The Synchronous Port Table

TThe Input Signal Table The Output Signal Table

The Asynchronous Port table is not supported by the DSU/CSU for the synchronous data ports. The Input Signal and Output Signal tables are not supported for the MODEM, AUX, and COM ports. The following sections provide clarification for objects contained in the RS-232-like MIB when it is not clear how the object definition in MIB is related to the DSU/CSU.

Number of Ports – “rs232Number” Object (rs232 1)

This object contains the number of ports in the RS-232-like general port table. This number is 5 for the 3160, 7 for the 3164, 3 for the 3165 and 2 for the 3161.

3160-A2-GB21-90 February 2001 E-19