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SNMP MIB Objects
E-16
3162-A2-GB20-40August 2000
Near End Group – The DS1 Total Table Objects (dsx1TotalEntry)
The following DS1 total table objects are provided for the network interface only.
Objects in the table that are not listed are not supported and will return an error
status if access is attempted.
H dsx1TotalIndex – The index that identifies the T1 interface.
H dsx1TotalESs – The 24-hour total Errored Seconds.
H dsx1Total SESs – The 24-hour total Severely Errored Seconds.
H dsx1TotalUASs – The 24-hour total Unavailable Seconds.
H dsx1TotalCSSs – The 24-hour total Controlled Slip Seconds.
H dsx1TotalBESs – The 24-hour total Bursty Errored Seconds.
Far End Group, DS1/E1 MIB
The DS1 Far End Group consists of the following three tables:
H DS1 Far End Current
H DS1 Far End Interval
H DS1 Far End Total
These tables are not supported for either the network or DTE Drop/Insert (DSX-1)
interface.
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.