Allied Telesis AT-S88 - Manual (Page 4)

Contents
4
SNMP Overview................................................................................................................................................44
Default SNMP Community Strings .............................................................................................................45
Setting Up the SNMP Community Table...........................................................................................................46
Setting Up the Host Table.................................................................................................................................47
Setting Up SNMP Trap Receivers ....................................................................................................................49
Chapter 6: Port Trunking ...............................................................................................................................51
Port Trunking Overview ....................................................................................................................................52
Static Port Trunk Overview.........................................................................................................................52
Static Port Trunk Guidelines ................................................................................................................53
Creating a Port Trunk........................................................................................................................................54
Modifying a Trunk .............................................................................................................................................56
Removing a Trunk.............................................................................................................................................57
Chapter 7: Port Mirroring ..............................................................................................................................59
Port Mirroring Overview ....................................................................................................................................60
Configuring Port Mirroring .................................................................................................................................61
Modifying a Port Mirror......................................................................................................................................64
Chapter 8: VLANs ..........................................................................................................................................65
VLAN Overview.................................................................................................................................................66
Port-based VLAN Overview ..............................................................................................................................68
VLAN Name................................................................................................................................................68
Group ID .....................................................................................................................................................68
General Rules for Creating a Port-based VLAN.........................................................................................68
Tagged VLAN Overview ...................................................................................................................................69
Tagged and Untagged Ports ......................................................................................................................69
Port VLAN Identifier....................................................................................................................................70
General Rules for Creating a Tagged VLAN ..............................................................................................70
Creating a Port-Based VLAN ............................................................................................................................71
Creating a Port-Based VLAN......................................................................................................................71
Modifying a Port-Based VLAN....................................................................................................................72
Viewing a Port-Based VLAN.......................................................................................................................73
Creating a Tagged VLAN..................................................................................................................................74
Creating a Tagged VLAN ...........................................................................................................................74
Modifying a Tagged VLAN..........................................................................................................................76
Viewing a Tagged VLAN ............................................................................................................................77
Changing a Port’s VLAN Mode .........................................................................................................................78
Chapter 9: Class of Service (CoS) ................................................................................................................81
CoS Overview ...................................................................................................................................................82
Scheduling..................................................................................................................................................84
Strict Priority Scheduling ......................................................................................................................84
Weighted Round Robin Priority Scheduling .........................................................................................85
Configuring CoS................................................................................................................................................86
Mapping CoS Priorities to Egress Queues .......................................................................................................88
Specifying the Scheduling Algorithm ................................................................................................................89
Chapter 10: IGMP ...........................................................................................................................................91
IGMP Snooping Overview.................................................................................................................................92
Enabling or Disabling IGMP Snooping..............................................................................................................94
Chapter 11: STP and RSTP ...........................................................................................................................95
STP Overview ...................................................................................................................................................96
Bridge Priority and the Root Bridge ............................................................................................................96
Path Costs and Port Costs...................................................................................................................97
Port Priority ..........................................................................................................................................99
Forwarding Delay and Topology Changes...........................................................................................99