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RFC 1232 DS1 Interface Objects May 1991
Unavailable Seconds, as defined by ANSI Draft
Standard T1M1.3/90 - 027R2[15], encountered by a
DS1 CSU in the previous 24 hour interval."
::= { ds1TotalEntry 5 }
ds1TotalCSSs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"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."
::= { ds1TotalEntry 6 }
ds1TotalBPVs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"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."
::= { ds1TotalEntry 7 }
ds1TotalCVs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"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-
accessible."
::= { ds1TotalEntry 8 }
-- the DS1 Fractional group
-- Implementation of this group is mandatory for those
Transmission MIB Working Group [Page 22]
RFC 1232 DS1 Interface Objects May 1991
-- 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
-- particular CSU.
-- 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
-- ifIndex.
--
-- 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
-- channels.
ds1FracTable OBJECT-TYPE
SYNTAX SEQUENCE OF DS1FracEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The DS1 Fractional table."
::= { ds1 5 }
ds1FracEntry OBJECT-TYPE
SYNTAX DS1FracEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the DS1 Fractional table."
INDEX { ds1FracIndex, ds1FracNumber }
::= { ds1FracTable 1 }
DS1FracEntry ::=
SEQUENCE {
Transmission MIB Working Group [Page 23]
RFC 1232 DS1 Interface Objects May 1991
ds1FracIndex
INTEGER,
ds1FracNumber
INTEGER (1..32),
ds1FracIfIndex
INTEGER
}
ds1FracIndex OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"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."
::= { ds1FracEntry 1 }
ds1FracNumber OBJECT-TYPE
SYNTAX INTEGER (1..32)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The channel number for this entry."
::= { ds1FracEntry 2 }
ds1FracIfIndex OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"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."
::= { ds1FracEntry 3 }
END
Transmission MIB Working Group [Page 24]
RFC 1232 DS1 Interface Objects May 1991
6. Acknowledgements
This document was produced by the SNMP and the Transmission MIB
Working Groups:
Anne Ambler, Spider
Karl Auerbach, Sun
Fred Baker, ACC
Ken Brinkerhoff
Ron Broersma, NOSC
Jack Brown, US Army
Theodore Brunner, Bellcore
Jeffrey Buffum, HP
Jeffrey D. Case, UTK
Chris Chiptasso, Spartacus
Paul Ciarfella, DEC
Bob Collet
Tracy Cox, Bellcore
James R. Davin, MIT-LCS
Kurt Dobbins, Cabletron
Nadya El-Afandi, Network Systems
Gary Ellis, HP
Fred Engle
Mike Erlinger
Richard Fox, Synoptics
Karen Frisa, CMU
Chris Gunner, DEC
Ken Hibbard, Xylogics
Ole Jacobsen, Interop
Ken Jones
Satish Joshi, Synoptics
Frank Kastenholz, Racal-Interlan
Shimshon Kaufman, Spartacus
Jim Kinder, Fibercom
Alex Koifman, BBN
Christopher Kolb, PSI
Cheryl Krupczak, NCR
Peter Lin, Vitalink
John Lunny, TWG
Carl Malamud
Keith McCloghrie, HLS
Donna McMaster, David Systems
Lynn Monsanto, Sun
Dave Perkins, 3COM
Jim Reinstedler, Ungerman Bass
Anil Rijsinghani, DEC
Kary Robertson
Marshall T. Rose, PSI (chair)
Transmission MIB Working Group [Page 25]
RFC 1232 DS1 Interface Objects May 1991
L. Michael Sabo, NCSC
Jon Saperia, DEC
John Seligson
Fei Shu, NEC
Sam Sjogren, TGV
Mark Sleeper, Sparta
Lance Sprung
Mike St.Johns
Bob Stewart, Xyplex
Emil Sturniold
Kaj Tesink, Bellcore
Dean Throop, Data General
Bill Townsend, Xylogics
Maurice Turcotte
Kannan Varadhou
Sudhanshu Verma, HP
Warren Vik, Interactive Systems
David Waitzman, BBN
Steve Waldbusser, CMU
Dan Wintringhan
David Wood
Jeff Young, Cray Research
7. References
[1] Cerf, V., "IAB Recommendations for the Development of Internet
Network Management Standards", RFC 1052, NRI, April 1988.
[2] Cerf, V., "Report of the Second Ad Hoc Network Management Review
Group", RFC 1109, NRI, August 1989.
[3] Rose M., and K. McCloghrie, "Structure and Identification of
Management Information for TCP/IP-based internets", RFC 1155,
Performance Systems International, Hughes LAN Systems, May 1990.
[4] McCloghrie K., and M. Rose, "Management Information Base for
Network Management of TCP/IP-based internets", RFC 1156, Hughes
LAN Systems, Performance Systems International, May 1990.
[5] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
Network Management Protocol", RFC 1157, SNMP Research,
Performance Systems International, Performance Systems
International, MIT Laboratory for Computer Science, May 1990.
[6] McCloghrie K., and M. Rose, Editors, "Management Information Base
for Network Management of TCP/IP-based internets", RFC 1213,
Performance Systems International, March 1991.
Transmission MIB Working Group [Page 26]
RFC 1232 DS1 Interface Objects May 1991
[7] Information processing systems - Open Systems Interconnection -
Specification of Abstract Syntax Notation One (ASN.1),
International Organization for Standardization, International
Standard 8824, December 1987.
[8] 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.
[9] AT&T Information Systems, AT&T ESF DS1 Channel Service Unit
User's Manual, 999-100-305, February 1988.
[10] AT&T Technical Reference, Requirements for Interfacing Digital
Terminal Equipment to Services Employing the Extended Superframe
Format, Publication 54016, May 1988.
[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] Rose, M., and K. McCloghrie, Editors, "Concise MIB Definitions",
RFC 1212, Performance Systems International, Hughes LAN Systems,
March 1991.
[14] ANSI T1.403-1989 American National Standard for
Telecommunications -- Carrier-to-Customer Installation -- DS1
Metallic Interface.
[15] ANSI T1M1.3/90 - 027R2 Draft Proposed Standard -- Description of
Installation and Maintenance Parameters for Digital Circuits,
Facilities, and Networks.
[16] Bell System Techical Reference, Publication 62411, High Capacity
Digital Service Channel Interface Specification, September 1983.
[17] Bell System Technical Reference, Publication 43801, "Digital
Channel Bank Requirements and Objectives", November 1982.
8. Security Considerations
Security issues are not discussed in this memo.
Transmission MIB Working Group [Page 27]
RFC 1232 DS1 Interface Objects May 1991
9. Authors' Addresses
Fred Baker
Advanced Computer Communications, Inc.
720 Santa Barbara Street
Santa Barbara, California 93101
Phone: (805) 963 9431
EMail: fbaker@acc.com
Christopher P. Kolb
Performance Systems International, Inc.
Reston International Center
11800 Sunrise Valley Drive
Suite 1100
Reston, VA 22091
Phone: (703) 620-6651
EMail: kolb@psi.com
Transmission MIB Working Group [Page 28]
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