Gigabit Ethernet WebSmart Switch User's Guide

Contents
4
Tagged Port Members ......................................................................................................................... 45
Untagged Port Members ......................................................................................................................45
Incoming and Outgoing Tagged and Untagged Frames ............................................................................ 45
Incoming Frames .................................................................................................................................45
Outgoing Frames ................................................................................................................................. 45
Guidelines for Creating a VLAN .................................................................................................................46
Working with VLANs .........................................................................................................................................47
Creating a VLAN.........................................................................................................................................47
Displaying all VLANs .................................................................................................................................. 48
Modifying a VLAN....................................................................................................................................... 49
Deleting a VLAN .........................................................................................................................................49
Protected Ports VLAN .......................................................................................................................................50
Chapter 7: Class of Service ..........................................................................................................................53
Class of Service Overview ................................................................................................................................54
Mapping Ports to Egress Queues...............................................................................................................54
Scheduling..................................................................................................................................................55
Mapping Priorities to Queues............................................................................................................................57
Setting Up the Schedule ................................................................................................................................... 58
Assigning Priority to Ports .................................................................................................................................59
Chapter 8: Spanning Tree Protocol (STP) ...................................................................................................61
Spanning Tree Overview ..................................................................................................................................62
Bridge Priority and the Root Bridge ............................................................................................................ 62
Path Costs and Port Costs................................................................................................................... 63
Port Priority ..........................................................................................................................................65
Forwarding Delay and Topology Changes...........................................................................................65
Hello Time and Bridge Protocol Data Units (BPDUs) ..........................................................................66
Point-to-Point and Edge Ports.............................................................................................................. 67
Spanning Tree and VLANs......................................................................................................................... 69
Configuring Spanning Tree ...............................................................................................................................71
Configuring STP Port Settings .......................................................................................................................... 74