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IXP400 Software
Contents
Programmer’s Guide IXP400 Software Version 2.0 April 2005
Document Number: 252539, Revision: 007
9.9 Management Information..................................................................................................152
10 Access-Layer Components:
Ethernet Database (IxEthDB) API.............................................................................................155
10.1 Overview...........................................................................................................................155
10.2 What’s New.......................................................................................................................155
10.3 IxEthDB Functional Behavior............................................................................................155
10.3.1 MAC Address Learning and Filtering...................................................................156
10.3.1.1 Learning and Filtering ..........................................................................156
10.3.1.2 Other MAC Learning/Filtering Usage Models ......................................158
10.3.1.3 Learning/Filtering General Characteristics...........................................158
10.3.2 Frame Size Filtering.............................................................................................160
10.3.2.1 Filtering Example Based Upon Maximum Frame Size ........................161
10.3.3 Source MAC Address Firewall.............................................................................161
10.3.4 802.1Q VLAN.......................................................................................................162
10.3.4.1 Background – VLAN Data in Ethernet Frames ....................................163
10.3.4.2 Database Records Associated With VLAN IDs....................................164
10.3.4.3 Acceptable Frame Type Filtering.........................................................164
10.3.4.4 Ingress Tagging and Tag Removal......................................................165
10.3.4.5 Port-Based VLAN Membership Filtering..............................................165
10.3.4.6 Port and VLAN-Based Egress Tagging and Tag Removal ..................166
10.3.4.7 Port ID Extraction.................................................................................169
10.3.5 802.1Q User Priority / QoS Support ....................................................................169
10.3.5.1 Priority Aware Transmission ................................................................169
10.3.5.2 Receive Priority Queuing .....................................................................170
10.3.5.3 Priority to Traffic Class Mapping ..........................................................171
10.3.6 802.3 / 802.11 Frame Conversion .......................................................................172
10.3.6.1 Background — 802.3 and 802.11 Frame Formats...............................172
10.3.6.2 How the 802.3 / 802.11 Frame Conversion Feature Works.................174
10.3.6.3 802.3 / 802.11 API Details .................................................................176
10.3.7 Spanning Tree Protocol Port Settings .................................................................177
10.4 IxEthDB API......................................................................................................................177
10.4.1 Initialization ..........................................................................................................177
10.4.2 Dependencies......................................................................................................177
10.4.3 Feature Set..........................................................................................................178
10.4.4 Additional Database Features .............................................................................178
10.4.4.1 User-Defined Field ...............................................................................178
10.4.4.2 Database Clear....................................................................................179
10.4.5 Dependencies on IxEthAcc Configuration ...........................................................179
10.4.5.1 Promiscuous-Mode Requirement ........................................................179
10.4.5.2 FCS Appending....................................................................................179
11 Access-Layer Components:
Ethernet PHY (IxEthMii) API .....................................................................................................181
11.1 What’s New.......................................................................................................................181
11.2 Overview...........................................................................................................................181
11.3 Features............................................................................................................................181
11.4 Supported PHYs...............................................................................................................181
11.5 Dependencies...................................................................................................................182