-- ds1.my - DS1-interface objects
-- $Header: /f/osi/snmp/RCS/ds1.my,v 7.2 91/02/22 09:43:03 mrose Interim $
-- Revision 7.2 91/02/22 09:43:03 mrose
-- Revision 7.1 91/01/11 13:02:23 mrose
-- Revision 7.0 90/09/27 10:46:07 mrose
-- *** empty log message ***
-- Acquisition, use, and distribution of this module and related
-- materials are subject to the restrictions of a license agreement.
-- Consult the Preface in the User's Manual for the full terms of
RFCxxxx-MIB DEFINITIONS ::= BEGIN
-- This MIB module uses the extended OBJECT-TYPE macro as
-- this is the MIB module for ds1 objects
ds1 OBJECT IDENTIFIER ::= { experimental 2 }
-- the DS1 Configuration group
-- Although the objects in this group are read-only, at the
-- agent's discretion they may be made read-write so that the
-- management station, when appropriately authorized, may
-- change the behavior of the CSU, e.g., to place the device
-- into a loopback state or emit a QRSS BER test.
-- Implementation of this group is mandatory for all systems
ds1ConfigTable OBJECT-TYPE
SYNTAX SEQUENCE OF DS1ConfigEntry
"The DS1 Configuration table."
ds1ConfigEntry OBJECT-TYPE
"An entry in the DS1 Configuration table."
DisplayString (SIZE (0..255))
"The index value which uniquely identifies the CSU
to which this entry is applicable."
"An index value that uniquely identifies an
interface to a ds1. The interface identified by a
particular value of this index is the same
interface as identified by the same value an
ifIndex object instance."
ds1TimeElapsed OBJECT-TYPE
"The number of seconds that have elapsed since the
beginning of the current error-measurement period.
Any fraction is rounded up."
ds1ValidIntervals OBJECT-TYPE
"The number of previous intervals for which valid
data was collected. The value will be 96 unless
the CSU device was brought online within the last
24 hours, in which case the value will be the
number of complete 15 minute intervals the CSU has
"This variable indicates the variety of DS1 Line
implementing this circuit. The type of circuit
affects the number of bits per second that the
circuit can reasonably carry, as well as the
interpretation of the usage and error statistics.
The values, in sequence, describe:
ds1ESF AT&T Extended SuperFrame DS1 [10]
ds1D4 AT&T D4 format DS1 [16], [17]
ds1ANSI-ESF ANSI Extended SuperFrame format [14]
ds1G704 CCITT Recommendation G.704 [12]
ds1G704-CRC CCITT Recommendation G.704 [12]
ds1ZeroCoding OBJECT-TYPE
"This variable describes the variety of Zero Code
Suppression used on the link, which in turn
affects a number of its characteristics.
ds1JammedBit refers the Jammed bit Zero Encoding,
in which the AT&T specification of at least one
pulse every 8 bit periods is literally implemented
by forcing a pulse in bit 8 of each channel.
Thus, only seven bits per channel, or 1.344 Mbps,
ds1B8ZS refers to the use of a specified pattern
of normal bits and bipolar violations which are
used to replace a sequence of eight zero bits (see
[14]). In this context, all eight bits in a
channel are technically available for data, but
care must be taken with D4 encoded data to avoid
having HDLC Flag streams imitate spurious Yellow
Alarm conditions. Typically, one bit per frame is
ignored to force flag streams to rotate, thereby
avoiding this error type. CCITT Recommendation
G.703 [11] may be referred to for further
ds1InvertedHDLC refers to the practice, common on
HDLC encoded DS1 data links, of inverting the data
between the serial interface chip and the CSU.
Since HDLC guarantees one zero every 6 bits in the
worst case, while the standards call for (in
effect) at least one pulse every eight, inverted
HDLC enjoys 4/24 one's density on the line, which
may improve the effective clock stability of a DS1
line. As with B8ZS, all eight bits in a channel
are technically available for data, but care must
be taken with D4 encoded data to avoid having HDLC
Flag streams imitate spurious Yellow Alarm
conditions. Typically, one bit per frame is
ignored to force flag streams to rotate, thereby
avoiding this error type.
ANSI Clear Channels may use ds1ZBTSI, or Zero Byte
Time Slot Interchange (see [14]).
G.704 links, with or without CRC, use ds1HDB3 (see
ds1LocalLoopbackLocalSide(2),
ds1LocalLoopbackRemoteSide(3),
ds1RemoteLoopbackLocalSide(4),
ds1RemoteLoopbackRemoteSide(5)
"This variable represents the loopback state of
the CSU. Devices supporting read/write access
should return badValue in response to a requested
loopback state that the CSU does not support. The
Not in the loopback state. A device that is
not capable of performing a loopback on either
interface shall always return this as it's
ds1LocalLoopbackLocalSide
Signal received from the local side of the
device is looped back at the local connector
(eg, without involving the CSU).
ds1LocalLoopbackRemoteSide
Signal received from the local side of the
device is looped back at the remote connector
ds1RemoteLoopbackLocalSide
Signal received from the remote side of the
device is looped back at the local connector
ds1RemoteLoopbackRemoteSide
Signal received from the remote side of the
device is looped back at the remote connector
(eg, without involving the CSU)."
"This variable indicates what type of code is
being sent across the DS1 circuit by the CSU. The
ds1SendNoCode sending looped or normal data
ds1SendSetCode sending a loopback request
ds1SendResetCode sending a loopback termination request
ds1SendQRSS sending the BERT pattern described in
ANSI T1.403-1989 section 5.6
ds1OtherTest sending a different BERT/BLERT pattern,
such as all zeroes, all ones, etc."
ds1YellowAlarm OBJECT-TYPE
"This variable indicates if a Yellow Alarm
Note that G.704 interfaces do not support Yellow
Alarms. Accordingly, such agents should return
the value ds1NoYellowAlarm."
"This variable indicates if a Red Alarm condition
Note that G.704 interfaces do not support Red
Alarms. Accordingly, such agents should return
the value ds1NoRedAlarm."
::= { ds1ConfigEntry 10 }
ds1CircuitIdentifier OBJECT-TYPE
SYNTAX DisplayString (SIZE (0..255))
"This variable contains the transmission vendor's
circuit identifier, for the purpose of
facilitating troubleshooting."
::= { ds1ConfigEntry 11 }
-- the DS1 Interval group
-- Implementation of this group is mandatory for all systems
-- It is recognized that some currently deployed CSUs do not
-- record the entire set of statistics specified in this
-- group. Accordingly, some agents queried for these objects
-- may treat these objects as having an ACCESS clause value
-- The DS1 Interval Table contains various statistics
-- collected by each CSU over the previous 24 hours of
-- operation. The past 24 hours are broken into 96 completed
ds1IntervalTable OBJECT-TYPE
SYNTAX SEQUENCE OF DS1IntervalEntry
"The DS1 Interval table."
ds1IntervalEntry OBJECT-TYPE
"An entry in the DS1 Interval table."
INDEX { ds1IntervalIndex, ds1IntervalNumber }
::= { ds1IntervalTable 1 }
ds1IntervalIndex OBJECT-TYPE
"The index value which uniquely identifies the CSU
to which this entry is applicable. The interface
identified by a particular value of this index is
the same interface as identified by the same value
an ds1CSUIndex object instance."
::= { ds1IntervalEntry 1 }
ds1IntervalNumber OBJECT-TYPE
"A number between 1 and 96, where 1 is the most
recently completed 15 minute interval and 96 is
the least recently completed 15 minute interval
(assuming that all 96 intervals are valid)."
::= { ds1IntervalEntry 2 }
ds1IntervalESs OBJECT-TYPE
"The counter associated with the number of Errored
Seconds, as defined by ANSI Draft Standard
T1M1.3/90 - 027R2[15], encountered by a DS1 CSU
during one of the previous 96 fifteen minute
::= { ds1IntervalEntry 3 }
ds1IntervalSESs OBJECT-TYPE
"The counter associated with the number of
Severely Errored Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU during one of the previous 96 fifteen
::= { ds1IntervalEntry 4 }
ds1IntervalSEFSs OBJECT-TYPE
"The counter associated with the number of
Severely Errored Framing Seconds, as defined by
ANSI Draft Standard T1M1.3/90 - 027R2[15],
encountered by a DS1 CSU during one of the
previous 96 fifteen minute intervals."
::= { ds1IntervalEntry 5 }
ds1IntervalUASs OBJECT-TYPE
"The counter associated with the number of
Unavailable Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU during one of the previous 96 fifteen
::= { ds1IntervalEntry 6 }
ds1IntervalCSSs OBJECT-TYPE
"The counter associated with the number of
Controlled Slip Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU during one of the previous 96 fifteen
::= { ds1IntervalEntry 7 }
ds1IntervalBPVs OBJECT-TYPE
"The counter associated with the number of Bipolar
Violations, as defined by ANSI Draft Standard
T1M1.3/90 - 027R2[15], encountered by a DS1 CSU
during one of the previous 96 fifteen minute
::= { ds1IntervalEntry 8 }
ds1IntervalCVs OBJECT-TYPE
"The counter associated with the number of Code
Violation Error Events, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU during one of the previous 96 fifteen
Note that D4 and G.704 (section 2.1.3.2)
interfaces do not support Code Violation Error
Events. Accordingly, such agents may treat this
object as having an ACCESS clause value of not-
::= { ds1IntervalEntry 9 }
-- Implementation of this group is mandatory for all systems
-- It is recognized that some currently deployed CSUs do not
-- record the entire set of statistics specified in this
-- group. Accordingly, some agents queried for these objects
-- may treat these objects as having an ACCESS clause value
-- The DS1 current table contains various statistics being
-- collected for the current 15 minute interval.
ds1CurrentTable OBJECT-TYPE
SYNTAX SEQUENCE OF DS1CurrentEntry
ds1CurrentEntry OBJECT-TYPE
"An entry in the DS1 Current table."
INDEX { ds1CurrentIndex }
::= { ds1CurrentTable 1 }
ds1CurrentIndex OBJECT-TYPE
"The index value which uniquely identifies the CSU
to which this entry is applicable. The interface
identified by a particular value of this index is
the same interface as identified by the same value
an ds1CSUIndex object instance."
::= { ds1CurrentEntry 1 }
ds1CurrentESs OBJECT-TYPE
"The counter associated with the number of Errored
Seconds, as defined by ANSI Draft Standard
T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
the current 15 minute interval."
::= { ds1CurrentEntry 2 }
ds1CurrentSESs OBJECT-TYPE
"The counter associated with the number of
Severely Errored Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the current 15 minute interval."
::= { ds1CurrentEntry 3 }
ds1CurrentSEFSs OBJECT-TYPE
"The counter associated with the number of
Severely Errored Framing Seconds, as defined by
ANSI Draft Standard T1M1.3/90 - 027R2[15],
encountered by a DS1 CSU in the current 15 minute
::= { ds1CurrentEntry 4 }
ds1CurrentUASs OBJECT-TYPE
"The counter associated with the number of
Unavailable Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the current 15 minute interval."
::= { ds1CurrentEntry 5 }
ds1CurrentCSSs OBJECT-TYPE
"The counter associated with the number of
Controlled Slip Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the current 15 minute interval."
::= { ds1CurrentEntry 6 }
ds1CurrentBPVs OBJECT-TYPE
"The counter associated with the number of Bipolar
Violations, as defined by ANSI Draft Standard
T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
the current 15 minute interval."
::= { ds1CurrentEntry 7 }
ds1CurrentCVs OBJECT-TYPE
"The counter associated with the number of Code
Violation Error Events, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the current 15 minute interval.
Note that D4 and G.704 (section 2.1.3.2)
interfaces do not support Code Violation Error
Events. Accordingly, such agents may treat this
object as having an ACCESS clause value of not-
::= { ds1CurrentEntry 8 }
-- Implementation of this group is mandatory for all systems
-- It is recognized that some currently deployed CSUs do not
-- record the entire set of statistics specified in this
-- group. Accordingly, some agents queried for these objects
-- may treat these objects as having an ACCESS clause value
-- The DS1 Total Table contains the cumulative sum of the
-- various statistics for the 24 hour interval preceding the
-- first valid interval in the ds1CurrentTable.
ds1TotalTable OBJECT-TYPE
SYNTAX SEQUENCE OF DS1TotalEntry
"The DS1 Total table. 24 hour interval."
ds1TotalEntry OBJECT-TYPE
"An entry in the DS1 Total table."
ds1TotalIndex OBJECT-TYPE
"The index value which uniquely identifies the CSU
to which this entry is applicable. The interface
identified by a particular value of this index is
the same interface as identified by the same value
an ds1CSUIndex object instance."
"The counter associated with the number of Errored
Seconds, as defined by ANSI Draft Standard
T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
the previous 24 hour interval"
"The counter associated with the number of
Severely Errored Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the previous 24 hour interval."
ds1TotalSEFSs OBJECT-TYPE
"The counter associated with the number of
Severely Errored Framing Seconds, as defined by
ANSI Draft Standard T1M1.3/90 - 027R2[15],
encountered by a DS1 CSU in the previous 24 hour
"The counter associated with the number of
Unavailable Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the previous 24 hour interval."
"The counter associated with the number of
Controlled Slip Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the previous 24 hour interval."
"The counter associated with the number of Bipolar
Violations, as defined by ANSI Draft Standard
T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
the previous 24 hour interval."
"The counter associated with the number of Code
Violation Error Events, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the previous 24 hour interval.
Note that D4 and G.704 (section 2.1.3.2)
interfaces do not support Code Violation Error
Events. Accordingly, such agents may treat this
object as having an ACCESS clause value of not-
-- the DS1 Fractional group
-- Implementation of this group is mandatory for those
-- systems utilizing a fractional DS1 capability
-- The DS1 fractional table contains identifies which DS1
-- channels associated with a CSU are being used to support a
-- logical interface, i.e., an entry in the interfaces table
-- from the Internet-standard MIB. For Clear Channel
-- implementations, exactly one ifTable entry corresponds to
-- the CSU being managed. In this very typical case, the
-- variable ds1Index indicates the value of ifIndex which
-- corresponds to the interface being supported by a
-- However, for fractional DS1 implementations, the
-- correspondent value of ds1Index is 0, and for each DS1
-- channel supporting a logical interface, there is an entry
-- in the DS1 fractional table which names a value for
-- For ds1ESF, ds1D4, and ds1ANSI-ESF, there are 24 legal
-- channels, numbered 1 through 24.
-- For G.704, there are 32 legal channels, numbered 1
-- through 32. ds1G704 can carry user data in channels 2
-- through 32, channel 1 being an overhead channel.
-- ds1G704-CRC can carry user data in channels 2 through
-- 16 and 18 through 32, channels 1 and 17 being overhead
SYNTAX SEQUENCE OF DS1FracEntry
"The DS1 Fractional table."
"An entry in the DS1 Fractional table."
INDEX { ds1FracIndex, ds1FracNumber }
"The index value which uniquely identifies the CSU
to which this entry is applicable. The interface
identified by a particular value of this index is
the same interface as identified by the same value
an ds1CSUIndex object instance."
ds1FracNumber OBJECT-TYPE
"The channel number for this entry."
ds1FracIfIndex OBJECT-TYPE
"An index value that uniquely identifies an
interface to a ds1. The interface identified by a
particular value of this index is the same
interface as identified by the same value an
ifIndex object instance."
projects / unix-history / blob