Allied Telesis AT-S25 - Manual (Page 5)

AT-S25 Version 1.4 User’s Guide
5
Chapter 6
Displaying Ethernet Statistics .................................................................................................................................................................. 113
Displaying Statistics for Received Frames ................................................................................................................................................ 114
Displaying Statistics for Transmitted Frames .......................................................................................................................................... 118
Displaying RMON Statistics for a Switch ................................................................................................................................................... 120
Displaying RMON Statistics for a Port ........................................................................................................................................................ 121
Resetting the Statistics Counters ................................................................................................................................................................ 122
Interpreting the Graphs .................................................................................................................................................................................. 123
Chapter 7
Configuring the Omega Interface ........................................................................................................................................................... 125
Creating an Omega Password ...................................................................................................................................................................... 126
Specifying a Timeout Value ........................................................................................................................................................................... 128
Enabling and Disabling the Access Methods .......................................................................................................................................... 129
Chapter 8
Upgrading Switch Software and Configuration Files ................................................................................................................... 131
Upgrading the Stack Software ..................................................................................................................................................................... 132
Using XModem to Upgrade the Stack Software ............................................................................................................................ 133
Using TFTP to Upgrade Software......................................................................................................................................................... 134
Using Omega to Upgrade Additional Stacks .......................................................................................................................................... 135
Downloading Software to One Stack................................................................................................................................................. 135
Downloading Software to All Switches ............................................................................................................................................. 136
Uploading and Downloading System Configuration Files ................................................................................................................ 137
Appendix A
Introduction to Virtual LANs ..................................................................................................................................................................... 139
Port-based VLAN ............................................................................................................................................................................................... 141
Parts of a Port-based VLAN .................................................................................................................................................................... 141
General Rules to Creating a Port-based VLAN ................................................................................................................................ 143
Port-based VLAN Example ..................................................................................................................................................................... 144
Drawbacks to Port-based VLANs ......................................................................................................................................................... 146
Tagged VLAN ...................................................................................................................................................................................................... 147
Parts of a Tagged VLAN........................................................................................................................................................................... 148
General Rules to Creating a Tagged VLAN ....................................................................................................................................... 149
Tagged VLAN Example ............................................................................................................................................................................ 150
Basic VLAN Mode .............................................................................................................................................................................................. 152
Appendix B
AT-S25 Default Settings .............................................................................................................................................................................. 153
Appendix C
Spanning Tree Protocol Concepts .......................................................................................................................................................... 155
Spanning Tree Protocol Features ................................................................................................................................................................ 156
Spanning Tree Protocol Parameters .......................................................................................................................................................... 157
Spanning Tree Protocol Operation ............................................................................................................................................................. 158
Communication Between Bridges ...................................................................................................................................................... 158
Selecting a Root Bridge and Designated Bridges .......................................................................................................................... 158
Selecting Designated Ports.................................................................................................................................................................... 158
Handling Duplicate Paths....................................................................................................................................................................... 158
Remapping Network Topology............................................................................................................................................................ 158
Appendix D
Supported Platforms .................................................................................................................................................................................... 159
Index ..................................................................................................................................................................................................................... 161