RFC 1406 (rfc1406) - Page 1 of 50
Definitions of Managed Objects for the DS1 and E1 Interface Types
Alternative Format: Original Text Document
Network Working Group F. Baker
Request for Comments: 1406 Advanced Computer Communications
Obsoletes: 1232 J. Watt
Newbridge Networks Corporation
Editors
January 1993
Definitions of Managed Objects for the DS1 and E1 Interface Types
Status of this Memo
This RFC specifies an IAB standards track protocol for the Internet
community, and requests discussion and suggestions for improvements.
Please refer to the current edition of the "IAB Official Protocol
Standards" for the standardization state and status of this protocol.
Distribution of this memo is unlimited.
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in TCP/IP-based internets.
In particular, it defines objects for managing DS1 Interfaces --
including both T1 and E1 (a.k.a., CEPT 2 Mbit/s) links.
This document entirely replaces RFC 1232, which contains a
fundamental error: many objects are encoded as Counters that must be
encoded as INTEGERs or Gauges. The magnitude of the change required
is sufficient that virtually every object changed. Therefore, the
MIB documented in RFC 1232 should not be implemented.
Table of Contents
1. The Network Management Framework ...................... 2
2. Objects ............................................... 2
2.1 Format of Definitions ................................ 3
2.2 Changes from RFC 1232 ................................ 3
3. Overview .............................................. 4
3.1 Binding between ifIndex and DS1 Interfaces ........... 5
3.2 Objectives of this MIB Module ........................ 7
3.3 DS1 Terminology ...................................... 7
3.3.1 Error Events ....................................... 7
3.3.2 Performance Defects ................................ 8
3.3.3 Performance Parameters ............................. 9
3.3.4 Failure States ..................................... 11
3.3.5 Other Terms ........................................ 13
4. Definitions ........................................... 14
4.1 DS1 Near End Group ................................... 14
Trunk MIB Working Group