Contents
4
Guidelines for Creating a VLAN .................................................................................................................42
Working with VLANs .........................................................................................................................................43
Creating a VLAN.........................................................................................................................................43
Displaying all VLANs .................................................................................................................................. 44
Modifying a VLAN....................................................................................................................................... 45
Deleting a VLAN .........................................................................................................................................45
Protected Ports VLAN .......................................................................................................................................46
Chapter 6: Class of Service ..........................................................................................................................49
Class of Service Overview ................................................................................................................................50
Mapping Ports to Egress Queues...............................................................................................................50
Scheduling..................................................................................................................................................51
Mapping Priorities to Queues............................................................................................................................53
Setting Up the Schedule ................................................................................................................................... 54
Assigning Priority to Ports .................................................................................................................................55
Chapter 7: Spanning Tree Protocol (STP) ...................................................................................................57
Spanning Tree Overview ..................................................................................................................................58
Bridge Priority and the Root Bridge ............................................................................................................ 58
Path Costs and Port Costs................................................................................................................... 59
Port Priority ..........................................................................................................................................61
Forwarding Delay and Topology Changes...........................................................................................61
Hello Time and Bridge Protocol Data Units (BPDUs) ..........................................................................62
Point-to-Point and Edge Ports.............................................................................................................. 63
Spanning Tree and VLANs.........................................................................................................................65
Configuring Spanning Tree ...............................................................................................................................67
Configuring STP Port Settings .......................................................................................................................... 70
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