Intel IXP400 manual 152

			Intel® IXP400 Software
				Contents
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

Programmer’s Guide	IXP400 Software Version 2.0	April 2005
	Document Number: 252539, Revision: 007