Contents
4
Creating a Port Trunk........................................................................................................................................52
Modifying a Trunk ............................................................................................................................................. 54
Removing a Trunk............................................................................................................................................. 55
Chapter 6: Port Mirroring ..............................................................................................................................57
Port Mirroring Overview .................................................................................................................................... 58
Configuring Port Mirroring ................................................................................................................................. 59
Modifying a Port Mirror......................................................................................................................................62
Chapter 7: VLANs .......................................................................................................................................... 63
VLAN Overview................................................................................................................................................. 64
Port-based VLAN Overview ..............................................................................................................................66
VLAN Name................................................................................................................................................66
Group ID .....................................................................................................................................................66
General Rules for Creating a
Port-based VLAN .............................................................................................................................................. 66
Tagged VLAN Overview ................................................................................................................................... 67
Tagged and Untagged Ports ......................................................................................................................67
Port VLAN Identifier....................................................................................................................................68
General Rules for Creating a Tagged VLAN ..............................................................................................68
Creating a Port-Based VLAN ............................................................................................................................ 69
Creating a Port-Based VLAN...................................................................................................................... 69
Modifying a Port-Based VLAN.................................................................................................................... 70
Viewing a Port-Based VLAN.......................................................................................................................71
Creating a Tagged VLAN.................................................................................................................................. 72
Creating a Tagged VLAN ........................................................................................................................... 72
Modifying a Tagged VLAN..........................................................................................................................74
Viewing a Tagged VLAN ............................................................................................................................ 75
Changing a Port’s VLAN Mode .........................................................................................................................76
Chapter 8: Class of Service (CoS) ................................................................................................................79
CoS Overview ...................................................................................................................................................80
Scheduling..................................................................................................................................................82
Strict Priority Scheduling ......................................................................................................................83
Weighted Round Robin Priority Scheduling .........................................................................................83
Configuring CoS................................................................................................................................................ 84
Mapping CoS Priorities to Egress Queues .......................................................................................................86
Specifying the Scheduling Algorithm ................................................................................................................87
Chapter 9: IGMP .............................................................................................................................................89
IGMP Snooping Overview.................................................................................................................................90
Enabling or Disabling IGMP Snooping.............................................................................................................. 92
Chapter 10: STP and RSTP ...........................................................................................................................93
STP Overview ...................................................................................................................................................94
Bridge Priority and the Root Bridge ............................................................................................................ 94
Path Costs and Port Costs................................................................................................................... 95
Port Priority ..........................................................................................................................................97
Forwarding Delay and Topology Changes...........................................................................................97
Hello Time and Bridge Protocol Data Units (BPDUs) ..........................................................................98
Point-to-Point and Edge Ports.............................................................................................................. 98
Mixed STP and RSTP Networks ....................................................................................................
..........100
Spanning Tree and VLANs....................................................................................................................... 100
Enabling or Disabling Spanning Tree .............................................................................................................102
Configuring the STP Bridge Settings ..............................................................................................................105
Configuring the Spanning Tree Port Settings .................................................................................................107
Chapter 11: Security ....................................................................................................................................109
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