tered by a DS1 interface in the previous 24
hour interval."
::= { dsx1TotalEntry 7 }
dsx1TotalLESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Line Errored Seconds encountered
by a DS1 interface in the previous 24 hour in-
terval."
::= { dsx1TotalEntry 8 }
dsx1TotalBESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Bursty Errored Seconds (BESs)
encountered by a DS1 interface in the previous
24 hour interval."
::= { dsx1TotalEntry 9 }
dsx1TotalDMs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Degraded Minutes (DMs) encoun-
tered by a DS1 interface in the previous 24
hour interval."
::= { dsx1TotalEntry 10 }
dsx1TotalLCVs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Line Code Violations (LCVs) en-
countered by a DS1 interface in the current 15
minute interval."
::= {dsx1TotalEntry 11 }
-- The DS1 Far End Group
-- Implementation of this group is optional for all systems
-- that attach to a DS1 Interface.
-- The DS1 Far End Group consists of three tables:
-- DS1 Far End Current
-- DS1 Far End Interval
-- DS1 Far End Total
-- The DS1 Far End Current Table
-- The DS1 Far End Current table contains various statistics
-- being collected for the current 15 minute interval.
-- The statistics are collected from the far end messages on the
-- Facilities Data Link. The definitions are the same as
-- described for the near-end information.
dsx1FarEndCurrentTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dsx1FarEndCurrentEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The DS1 Far End Current table."
::= { ds1 10 }
dsx1FarEndCurrentEntry OBJECT-TYPE
SYNTAX Dsx1FarEndCurrentEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the DS1 Far End Current table."
INDEX { dsx1FarEndCurrentIndex }
::= { dsx1FarEndCurrentTable 1 }
Dsx1FarEndCurrentEntry ::=
SEQUENCE {
dsx1FarEndCurrentIndex
INTEGER,
dsx1FarEndTimeElapsed
INTEGER,
dsx1FarEndValidIntervals
INTEGER,
dsx1FarEndCurrentESs
Gauge,
dsx1FarEndCurrentSESs
Gauge,
dsx1FarEndCurrentSEFSs
Gauge,
dsx1FarEndCurrentUASs
Gauge,
dsx1FarEndCurrentCSSs
Gauge,
dsx1FarEndCurrentLESs
Gauge,
dsx1FarEndCurrentPCVs
Gauge,
dsx1FarEndCurrentBESs
Gauge,
dsx1FarEndCurrentDMs
Gauge
}
dsx1FarEndCurrentIndex OBJECT-TYPE
SYNTAX INTEGER (1..'7fffffff'h)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The index value which uniquely identifies the
DS1 interface to which this entry is applica-
ble. The interface identified by a particular
value of this index is the same interface as
identified by the same value an dsx1LineIndex
object instance."
::= { dsx1FarEndCurrentEntry 1 }
dsx1FarEndTimeElapsed OBJECT-TYPE
SYNTAX INTEGER (0..899)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of seconds that have elapsed
since the beginning of the far end current
error-measurement period."
::= { dsx1FarEndCurrentEntry 2 }
dsx1FarEndValidIntervals OBJECT-TYPE
SYNTAX INTEGER (0..96)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of previous far end intervals
for which valid data was collected. The
value will be 96 unless the interface was
brought online within the last 24 hours,
in which case the value will be the number
of complete 15 minute far end intervals
since the interface has been online."
::= { dsx1FarEndCurrentEntry 3 }
dsx1FarEndCurrentESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far Far End Errored Seconds en-
countered by a DS1 interface in the current 15
minute interval."
::= { dsx1FarEndCurrentEntry 4 }
dsx1FarEndCurrentSESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Severely Errored Seconds
encountered by a DS1 interface in the current
15 minute interval."
::= { dsx1FarEndCurrentEntry 5 }
dsx1FarEndCurrentSEFSs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Severely Errored Framing
Seconds encountered by a DS1 interface in the
current 15 minute interval."
::= { dsx1FarEndCurrentEntry 6 }
dsx1FarEndCurrentUASs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Unavailable Seconds encountered
by a DS1 interface in the current 15 minute in-
terval."
::= { dsx1FarEndCurrentEntry 7 }
dsx1FarEndCurrentCSSs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Controlled Slip Seconds
encountered by a DS1 interface in the current
15 minute interval."
::= { dsx1FarEndCurrentEntry 8 }
dsx1FarEndCurrentLESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Line Errored Seconds en-
countered by a DS1 interface in the current 15
minute interval."
::= { dsx1FarEndCurrentEntry 9 }
dsx1FarEndCurrentPCVs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Path Coding Violations
reported via the far end block error count en-
countered by a DS1 interface in the current 15
minute interval."
::= { dsx1FarEndCurrentEntry 10 }
dsx1FarEndCurrentBESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Bursty Errored Seconds (BESs)
encountered by a DS1 interface in the current
15 minute interval."
::= {dsx1FarEndCurrentEntry 11 }
dsx1FarEndCurrentDMs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Degraded Minutes (DMs) encoun-
tered by a DS1 interface in the current 15
minute interval."
::= { dsx1FarEndCurrentEntry 12 }
-- The DS1 Far End Interval Table
-- The DS1 Far End Interval Table contains various statistics
-- collected by each DS1 interface over the previous 24 hours of
-- operation. The past 24 hours are broken into 96
-- completed 15 minute intervals.
dsx1FarEndIntervalTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dsx1FarEndIntervalEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The DS1 Far End Interval table."
::= { ds1 11 }
dsx1FarEndIntervalEntry OBJECT-TYPE
SYNTAX Dsx1FarEndIntervalEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the DS1 Far End Interval table."
INDEX { dsx1FarEndIntervalIndex,
dsx1FarEndIntervalNumber }
::= { dsx1FarEndIntervalTable 1 }
Dsx1FarEndIntervalEntry ::=
SEQUENCE {
dsx1FarEndIntervalIndex
INTEGER,
dsx1FarEndIntervalNumber
INTEGER,
dsx1FarEndIntervalESs
Gauge,
dsx1FarEndIntervalSESs
Gauge,
dsx1FarEndIntervalSEFSs
Gauge,
dsx1FarEndIntervalUASs
Gauge,
dsx1FarEndIntervalCSSs
Gauge,
dsx1FarEndIntervalLESs
Gauge,
dsx1FarEndIntervalPCVs
Gauge,
dsx1FarEndIntervalBESs
Gauge,
dsx1FarEndIntervalDMs
Gauge
}
dsx1FarEndIntervalIndex OBJECT-TYPE
SYNTAX INTEGER (1..'7fffffff'h)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The index value which uniquely identifies the
DS1 interface to which this entry is applica-
ble. The interface identified by a particular
value of this index is the same interface as
identified by the same value as a dsx1LineIndex
object instance."
::= { dsx1FarEndIntervalEntry 1 }
dsx1FarEndIntervalNumber OBJECT-TYPE
SYNTAX INTEGER (1..96)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"A number between 1 and 96, where 1 is the most
recently completed 15 minute interval and 96 is
the least recently completed 15 minutes inter-
val (assuming that all 96 intervals are
valid)."
::= { dsx1FarEndIntervalEntry 2 }
dsx1FarEndIntervalESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Errored Seconds encoun-
tered by a DS1 interface in one of the previous
96, individual 15 minute, intervals."
::= { dsx1FarEndIntervalEntry 3 }
dsx1FarEndIntervalSESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Severely Errored Seconds
encountered by a DS1 interface in one of the
previous 96, individual 15 minute, intervals."
::= { dsx1FarEndIntervalEntry 4 }
dsx1FarEndIntervalSEFSs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Severely Errored Framing
Seconds encountered by a DS1 interface in one
of the previous 96, individual 15 minute, in-
tervals."
::= { dsx1FarEndIntervalEntry 5 }
dsx1FarEndIntervalUASs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Unavailable Seconds encountered
by a DS1 interface in one of the previous 96,
individual 15 minute, intervals."
::= { dsx1FarEndIntervalEntry 6 }
dsx1FarEndIntervalCSSs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Controlled Slip Seconds
encountered by a DS1 interface in one of the
previous 96, individual 15 minute, intervals."
::= { dsx1FarEndIntervalEntry 7 }
dsx1FarEndIntervalLESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Line Errored Seconds en-
countered by a DS1 interface in one of the pre-
vious 96, individual 15 minute, intervals."
::= { dsx1FarEndIntervalEntry 8 }
dsx1FarEndIntervalPCVs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Path Coding Violations
reported via the far end block error count en-
countered by a DS1 interface in one of the pre-
vious 96, individual 15 minute, intervals."
::= { dsx1FarEndIntervalEntry 9 }
dsx1FarEndIntervalBESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Bursty Errored Seconds (BESs)
encountered by a DS1 interface in one of the
previous 96, individual 15 minute, intervals."
::= {dsx1FarEndIntervalEntry 10 }
dsx1FarEndIntervalDMs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Degraded Minutes (DMs) encoun-
tered by a DS1 interface in one of the previous
96, individual 15 minute, intervals."
::= { dsx1FarEndIntervalEntry 11 }
-- The DS1 Far End Total Table
-- The DS1 Far End Total Table contains the cumulative sum of the
-- various statistics for the 24 hour period preceding the
-- current interval.
dsx1FarEndTotalTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dsx1FarEndTotalEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The DS1 Far End Total table."
::= { ds1 12 }
dsx1FarEndTotalEntry OBJECT-TYPE
SYNTAX Dsx1FarEndTotalEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the DS1 Far End Total table."
INDEX { dsx1FarEndTotalIndex }
::= { dsx1FarEndTotalTable 1 }
Dsx1FarEndTotalEntry ::=
SEQUENCE {
dsx1FarEndTotalIndex
INTEGER,
dsx1FarEndTotalESs
Gauge,
dsx1FarEndTotalSESs
Gauge,
dsx1FarEndTotalSEFSs
Gauge,
dsx1FarEndTotalUASs
Gauge,
dsx1FarEndTotalCSSs
Gauge,
dsx1FarEndTotalLESs
Gauge,
dsx1FarEndTotalPCVs
Gauge,
dsx1FarEndTotalBESs
Gauge,
dsx1FarEndTotalDMs
Gauge
}
dsx1FarEndTotalIndex OBJECT-TYPE
SYNTAX INTEGER (1..'7fffffff'h)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The index value which uniquely identifies the
DS1 interface to which this entry is applica-
ble. The interface identified by a particular
value of this index is the same interface as
identified by the same value an dsx1LineIndex
object instance."
::= { dsx1FarEndTotalEntry 1 }
dsx1FarEndTotalESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Errored Seconds encoun-
tered by a DS1 interface in the previous 24
hour interval."
::= { dsx1FarEndTotalEntry 2 }
dsx1FarEndTotalSESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Severely Errored Seconds
encountered by a DS1 interface in the previous
24 hour interval."
::= { dsx1FarEndTotalEntry 3 }
dsx1FarEndTotalSEFSs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Severely Errored Framing
Seconds encountered by a DS1 interface in the
previous 24 hour interval."
::= { dsx1FarEndTotalEntry 4 }
dsx1FarEndTotalUASs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Unavailable Seconds encountered
by a DS1 interface in the previous 24 hour in-
terval."
::= { dsx1FarEndTotalEntry 5 }
dsx1FarEndTotalCSSs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Controlled Slip Seconds
encountered by a DS1 interface in the previous
24 hour interval."
::= { dsx1FarEndTotalEntry 6 }
dsx1FarEndTotalLESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Line Errored Seconds en-
countered by a DS1 interface in the previous 24
hour interval."
::= { dsx1FarEndTotalEntry 7 }
dsx1FarEndTotalPCVs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Far End Path Coding Violations
reported via the far end block error count en-
countered by a DS1 interface in the previous 24
hour interval."
::= { dsx1FarEndTotalEntry 8 }
dsx1FarEndTotalBESs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Bursty Errored Seconds (BESs)
encountered by a DS1 interface in the previous
24 hour interval."
::= { dsx1FarEndTotalEntry 9 }
dsx1FarEndTotalDMs OBJECT-TYPE
SYNTAX Gauge
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The number of Degraded Minutes (DMs) encoun-
tered by a DS1 interface in the previous 24
hour interval."
::= { dsx1FarEndTotalEntry 10 }
-- the DS1 Fractional Group
-- Implementation of this group is mandatory for those
-- systems dividing a DS1 into channels containing different
-- data streams that are of local interest. Systems which
-- are indifferent to data content, such as CSUs, need not
-- implement it.
-- The DS1 fractional table 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 example, consider an application managing a North
-- American ISDN Primary Rate link whose division is a 384 kbit/s
-- H1 "B" Channel for Video, a second H1 for data to a primary
-- routing peer, and 12 64 kbit/s H0 "B" Channels. Consider that
-- some subset of the H0 channels are used for voice and the
-- remainder are available for dynamic data calls.
-- we count a total of 14 interfaces multiplexed onto the DS1
-- interface. Six DS1 channels (for the sake of the example,
-- channels 1..6) are used for Video, six more (7..11 and 13)
-- are used for data, and the remaining 12 are are in channels
-- 12 and 14..24.
-- Let us further imagine that ifIndex 2 is of type DS1 and
-- refers to the DS1 interface, and that the interfaces layered
-- onto it are numbered 3..16.
-- We might describe the allocation of channels, in the
-- dsx1FracTable, as follows:
-- dsx1FracIfIndex.2. 1 = 3 dsx1FracIfIndex.2.13 = 4
-- dsx1FracIfIndex.2. 2 = 3 dsx1FracIfIndex.2.14 = 6
-- dsx1FracIfIndex.2. 3 = 3 dsx1FracIfIndex.2.15 = 7
-- dsx1FracIfIndex.2. 4 = 3 dsx1FracIfIndex.2.16 = 8
-- dsx1FracIfIndex.2. 5 = 3 dsx1FracIfIndex.2.17 = 9
-- dsx1FracIfIndex.2. 6 = 3 dsx1FracIfIndex.2.18 = 10
-- dsx1FracIfIndex.2. 7 = 4 dsx1FracIfIndex.2.19 = 11
-- dsx1FracIfIndex.2. 8 = 4 dsx1FracIfIndex.2.20 = 12
-- dsx1FracIfIndex.2. 9 = 4 dsx1FracIfIndex.2.21 = 13
-- dsx1FracIfIndex.2.10 = 4 dsx1FracIfIndex.2.22 = 14
-- dsx1FracIfIndex.2.11 = 4 dsx1FracIfIndex.2.23 = 15
-- dsx1FracIfIndex.2.12 = 5 dsx1FracIfIndex.2.24 = 16
-- For North American (DS1) interfaces, there are 24 legal
-- channels, numbered 1 through 24.
-- For G.704 interfaces, there are 31 legal channels,
-- numbered 1 through 31. The channels (1..31) correspond
-- directly to the equivalently numbered time-slots.
dsx1FracTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dsx1FracEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The DS1 Fractional table."
::= { ds1 13 }
dsx1FracEntry OBJECT-TYPE
SYNTAX Dsx1FracEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the DS1 Fractional table."
INDEX { dsx1FracIndex, dsx1FracNumber }
::= { dsx1FracTable 1 }
Dsx1FracEntry ::=
SEQUENCE {
dsx1FracIndex
INTEGER,
dsx1FracNumber
INTEGER,
dsx1FracIfIndex
INTEGER
}
dsx1FracIndex OBJECT-TYPE
SYNTAX INTEGER (1..'7fffffff'h)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The index value which uniquely identifies the
DS1 interface to which this entry is applica-
ble. The interface identified by a particular
value of this index is the same interface as
identified by the same value an dsx1LineIndex
object instance."
::= { dsx1FracEntry 1 }
dsx1FracNumber OBJECT-TYPE
SYNTAX INTEGER (1..31)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The channel number for this entry."
::= { dsx1FracEntry 2 }
dsx1FracIfIndex OBJECT-TYPE
SYNTAX INTEGER (1..'7fffffff'h)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"An index value that uniquely identifies an in-
terface. The interface identified by a partic-
ular value of this index is the same interface
as identified by the same value an ifIndex ob-
ject instance. If no interface is currently us-
ing a channel, the value should be zero. If a
single interface occupies more than one time
slot, that ifIndex value will be found in mul-
tiple time slots."
::= { dsx1FracEntry 3 }
END
5. Acknowledgements
This document was produced by the Trunk MIB Working Group:
Tracy Cox Bellcore
Fred Baker Advanced Computer Communications
James Watt Newbridge
Bill Versteeg Versteeg Codeworks
Steve Buchko Newbridge
Greg Celmainis Newbridge
Kaj Tesink Bellcore
Al Bryenton Bell Northern Research
Tom Easterday CIC
John Labbe Merit Corporation
Chris Sullivan Gandalf Ltd
Grant Hall Gandalf Ltd
Laurence V. Marks, IBM Corp.
Kurt Hall, Clear Communications Corp.
Myron Hattig, ADC Kentrox
Tracy Cox, Bill Versteeg, Myron Hattig, Kurt Hall and Laurence Marks
especially worked to make the document what it is.
6. References
[1] Rose M., and K. McCloghrie, "Structure and Identification of
Management Information for TCP/IP-based internets", STD 16, RFC
1155, Performance Systems International, Hughes LAN Systems, May
1990.
[2] Rose, M., and K. McCloghrie, Editors, "Concise MIB Definitions",
STD 16, RFC1212, Performance Systems International, Hughes LAN
Systems, March 1991.
[3] McCloghrie K., and M. Rose, "Management Information Base for
Network Management of TCP/IP-based internets", RFC1156, Hughes
LAN Systems, Performance Systems International, May 1990.
[4] McCloghrie K., and M. Rose, Editors, "Management Information Base
for Network Management of TCP/IP-based internets", STD 17, RFC
1213, Performance Systems International, March 1991.
[5] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
Network Management Protocol", STD 15, RFC1157, SNMP Research,
Performance Systems International, Performance Systems
International, MIT Laboratory for Computer Science, May 1990.
[6] Information processing systems - Open Systems Interconnection -
Specification of Abstract Syntax Notation One (ASN.1),
International Organization for Standardization, International
Standard 8824, December 1987.
[7] Information processing systems - Open Systems Interconnection -
Specification of Basic Encoding Rules for Abstract Notation One
(ASN.1), International Organization for Standardization,
International Standard 8825, December 1987.
[8] AT&T Information Systems, AT&T ESF DS1 Channel Service Unit
User's Manual, 999-100-305, February 1988.
[9] AT&T Technical Reference, Requirements for Interfacing Digital
Terminal Equipment to Services Employing the Extended Superframe
Format, Publication 54016, May 1988.
[10] American National Standard for Telecommunications -- Carrier-to-
Customer Installation - DS1 Metallic Interface, T1.403, February
1989.
[11] CCITT Specifications Volume III, Recommendation G.703,
Physical/Electrical Characteristics of Hierarchical Digital
Interfaces, July 1988.
[12] CCITT Specifications Volume III, Recommendation G.704,
Synchronous frame structures used at primary and secondary
hierarchical levels, July 1988.
[13] American National Standard for Telecommunications -- Layer 1 In-
Service Digital Transmission Performance Monitoring T1M1/92-0xx,
T1M1.3/92-005R1, April 1992.
[14] CCITT Specifications Volume IV, Recommendation O.162, Equipment
To Perform In Service Monitoring On 2048 kbit/s Signals, July
1988
[15] CCITT Specifications Volume III, Recommendation G.821, Error
Performance Of An International Digital Connection Forming Part
Of An Integrated Services Digital Network, July 1988.
[16] AT&T Technical Reference, Technical Reference 62411, ACCUNET T1.5
Service Description And Interface Specification, December 1990.
[17] CCITT Specifications Volume III, Recommendation G.706, Frame
Alignment and Cyclic Redundancy Check (CRC) Procedures Relating
to Basic Frame Structures Defined in Recommendation G.704, July
1988.
[18] CCITT Specifications Volume III, Recommendation G.732,
Characteristics Of Primary PCM Multiplex Equipment Operating at
2048 kbit/s, July 1988.
Security Considerations
Security issues are not discussed in this memo.
Authors' Addresses
Fred Baker
Advanced Computer Communications
315 Bollay Drive
Santa Barbara, California 93117
Phone: (805) 685-4455
EMail: fbaker@acc.com
James Watt
Newbridge Networks Corporation
600 March Road
Kanata, Ontario
Canada K2K 2E6
Phone: (613) 591-3600
EMail: james@newbridge.com