PPP Bridging Control Protocol (BCP)
RFC 2878
| Document | Type |
RFC - Proposed Standard
(July 2000; No errata)
Obsoleted by RFC 3518
Obsoletes RFC 1638
|
|
|---|---|---|---|
| Last updated | 2013-03-02 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 2878 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | (None) | ||
| Send notices to | (None) | ||
Network Working Group M. Higashiyama
Request for Comments: 2878 Anritsu
Obsoletes: 1638 F. Baker
Category: Standards Track Cisco
July 2000
PPP Bridging Control Protocol (BCP)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
The Point-to-Point Protocol (PPP) [6] provides a standard method for
transporting multi-protocol datagrams over point-to-point links. PPP
defines an extensible Link Control Protocol, and proposes a family of
Network Control Protocols for establishing and configuring different
network-layer protocols.
This document defines the Network Control Protocol for establishing
and configuring Remote Bridging for PPP links.
This document obsoletes RFC 1638, which was based on the IEEE
802.1D-1993 MAC Bridge[3]. This document extends that specification
by including the IEEE 802.1D-1998 MAC Bridge[8] and IEEE 802.1Q
Virtual LAN (VLAN)[9] standards. This document also improves the
protocol in order to support high-speed switched LANs.
Higashiyama & Baker Standards Track [Page 1]
RFC 2878 PPP Bridging Control Protocol (BCP) July 2000
Table of Contents
1. Historical Perspective ................................ 3
1.1 Requirements Keywords ........................... 3
2. Methods of Bridging ................................... 3
2.1 Transparent Bridging ............................ 3
2.2 Remote Transparent Bridging ..................... 4
2.3 Source Routing .................................. 5
2.4 Remote Source Route Bridging .................... 6
2.5 SR-TB Translational Bridging .................... 7
3. Traffic Services ...................................... 7
3.1 LAN Frame Checksum Preservation ................. 7
3.2 Traffic having no LAN Frame Checksum ............ 7
3.3 Tinygram Compression ............................ 8
3.4 Virtual LANs .................................... 8
4. A PPP Network Control Protocol for Bridging ........... 9
4.1 Sending Bridge Frames ........................... 10
4.1.1 Maximum Receive Unit Considerations ............. 11
4.1.2 Loopback and Link Quality Monitoring ............ 11
4.1.3 Message Sequence ................................ 11
4.1.4 Separation of Spanning Tree Domains ............. 12
4.2 Bridged LAN Traffic in IEEE 802 Untagged Frame .. 12
4.3 Bridged LAN Traffic in IEEE 802 Tagged Frame .... 16
4.4 Bridge management protocol data unit ............ 21
5. BCP Configuration Options ............................. 21
5.1 Bridge-Identification ........................... 22
5.2 Line-Identification ............................. 23
5.3 MAC-Support ..................................... 25
5.4 Tinygram-Compression ............................ 26
5.5 MAC-Address ..................................... 27
5.6 Spanning Tree Protocol (old formatted) .......... 28
5.7 IEEE-802-Tagged-Frame ........................... 30
5.8 Management-Inline ............................... 30
6. Changes From RFC 1638 ................................. 31
7. Security Considerations ............................... 32
8. Intellectual Property Notice .......................... 32
9. IANA Considerations ................................... 33
10. Acknowledgments ....................................... 33
APPENDICES ................................................... 34
A. Spanning Tree Bridge PDU (old formatted) ........... 34
B. Tinygram-Compression Pseudo-Code ................... 35
References ................................................... 36
Authors' Addresses ........................................... 37
Full Copyright Statement...................................... 38
Higashiyama & Baker Standards Track [Page 2]
RFC 2878 PPP Bridging Control Protocol (BCP) July 2000
1. Historical Perspective
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