Cabletron's SecureFast VLAN Operational Model
RFC 2643
Document | Type |
RFC - Informational
(August 1999; No errata)
Was draft-rfced-info-cabletron-vlan (individual)
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Authors | Ted Len , Dave Ruffen , Judy Yanacek | ||
Last updated | 2013-03-02 | ||
Stream | Independent Submission | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Stream | ISE state | (None) | |
Consensus Boilerplate | Unknown | ||
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 2643 (Informational) | |
Telechat date | |||
Responsible AD | (None) | ||
Send notices to | (None) |
Network Working Group D. Ruffen Request for Comments: 2643 T. Len Category: Informational J. Yanacek Cabletron Systems Incorporated August 1999 Cabletron's SecureFast VLAN Operational Model Version 1.8 Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (1999). All Rights Reserved. Abstract Cabletron's SecureFast VLAN (SFVLAN) product implements a distributed connection-oriented switching protocol that provides fast forwarding of data packets at the MAC layer. The product uses the concept of virtual LANs (VLANs) to determine the validity of call connection requests and to scope the broadcast of certain flooded messages. Table of Contents 1. Introduction............................................. 3 1.1 Data Conventions..................................... 3 1.2 Definitions of Commonly Used Terms................... 4 2. SFVLAN Overview.......................................... 6 2.1 Features............................................. 7 2.2 VLAN Principles...................................... 8 2.2.1 Default, Base and Inherited VLANs.............. 8 2.2.2 VLAN Configuration Modes....................... 8 2.2.2.1 Endstations............................ 8 2.2.2.2 Ports.................................. 9 2.2.2.3 Order of Precedence.................... 9 2.2.3 Ports with Multiple VLAN Membership............ 10 2.3 Tag/Length/Value Method of Addressing................ 10 2.4 Architectural Overview............................... 11 3. Base Services............................................ 13 4. Call Processing.......................................... 14 4.1 Directory Service Center............................. 14 4.1.1 Local Add Server............................... 15 Ruffen, et al. Informational [Page 1] RFC 2643 Cabletron's SecureFast VLAN Operational Model August 1999 4.1.2 Inverse Resolve Server......................... 15 4.1.3 Local Delete Server............................ 18 4.2 Topology Service Center.............................. 18 4.2.1 Neighbor Discovery Server...................... 18 4.2.2 Spanning Tree Server........................... 18 4.2.2.1 Creating and Maintaining the Spanning Tree........... 19 4.2.2.2 Remote Blocking........................ 19 4.2.3 Link State Server.............................. 20 4.3 Resolve Service Center............................... 21 4.3.1 Table Server................................... 22 4.3.2 Local Server................................... 22 4.3.3 Subnet Server.................................. 22 4.3.4 Interswitch Resolve Server..................... 22 4.3.5 Unresolvable Server............................ 23 4.3.6 Block Server................................... 23 4.4 Policy Service Center................................ 24 4.4.1 Unicast Rules Server........................... 24 4.5 Connect Service Center............................... 25 4.5.1 Local Server................................... 25 4.5.2 Link State Server.............................. 25 4.5.3 Directory Server............................... 26 4.6 Filter Service Center................................ 26 4.7 Path Service Center.................................. 26 4.7.1 Link State Server.............................. 26 4.7.2 Spanning Tree Server........................... 27 4.8 Flood Service Center................................. 27 4.8.1 Tag-Based Flood Server......................... 27 5. Monitoring Call Connections.............................. 27 5.1 Definitions.......................................... 27 5.2 Tapping a Connection................................. 28 5.2.1 Types of Tap Connections....................... 28 5.2.2 Locating the Probe and Establishing the Tap Connection.......... 29 5.2.3 Status Field................................... 30 5.3 Untapping a Connection............................... 31 6. Interswitch Message Protocol (ISMP)...................... 32 6.1 General Packet Structure............................. 32Show full document text