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ACCULINK 336x E1 NTU
E-8 December 1996 3360-A2-GB20-20
DS1/E1 MIB (RFC 1406)
The “ds1” object defined by RFC 1406 is supported for
both the network and G.703 DTE interfaces. The DS1
Near End Group and DS1 Fractional Group are supported
for both interfaces. The DS1 Far End Group is not
supported.
Near End Group, DS1/E1 MIB
The DS1 Near End Group consists of the following
four tables:
• DS1 Configuration
• DS1 Current
• DS1 Interval
• DS1 Total
All four tables are fully supported for the network
interface. Since statistics are not kept for the G.703 DTE
interface, only the DS1 Configuration table is fully
supported. The “statistic” objects for the G.703 DTE
interface entry in the DS1 Current, DS1 Interval, and DS1
Total tables are always zero (null). The following sections
provide clarification for objects contained in the Near End
Group when it is not clear how the object definition in the
DS1/E1 MIB is related to the E1 NTU.
Near End Group – “dsx1TimeElapsed” Object
(dsx1ConfigEntry 3)
Applies to the network interface only. An error status is
returned if access is attempted for the G.703 DTE
interface.
Near End Group – “dsx1ValidIntervals” Object
(dsx1ConfigEntry 4)
Applies to the network interface only. An error status is
returned if access is attempted for the G.703 DTE
interface.
Near End Group – “dsx1LineType” Object
(dsx1ConfigEntry 5)
This object corresponds to the NET Framing/DTE
Framing configuration options for the E1 interfaces on the
E1 NTU. Only the following values are supported by the
E1 NTU.
• dsx1E1(4) – Indicates non-CRC-4 framing.
• dsx1E1-CRC(5) – Indicates CRC-4 framing.
Near End Group – “dsx1LineCoding” Object
(dsx1ConfigEntry 6)
This object corresponds to the DTE Coding
configuration option on the E1 NTU. Only the following
values are supported by the E1 NTU.
• dsx1HDB3(3) – Indicates HDB3 line coding.
• dsx1AMI(5) – Indicates AMI line coding (for DTE
only, not available for NET).
Near End Group – “dsx1SendCode” Object
(dsx1ConfigEntry 7)
This object specifies the test patterns/codes being sent
over the network interface. These tests are not supported
on the G.703 DTE interface. Only the following values
are supported by the E1 NTU.
• dsx1SendNoCode(1) – Specifies that the interface
is sending normal or looped data. Setting the
interface to this value stops an active “send pattern”
test on the interface. This is the only value
supported by the G.703 DTE interface.
• dsx1SendOtherTestPattern(8) – Specifies that the
network interface is sending a 1-in-8 or a 32767 test
pattern. This value is read-only. An attempt to write
this value returns a badValue response.
Near End Group – “dsx1CircuitIdentifier” Object
(dsx1ConfigEntry 8)
This object is only supported on the network interface.