user manual

Contents
10
Displaying System Information...........................................................................................................307
Setting Port States .............................................................................................................................307
Neighbors Information ..............................................................................................................................309
Chapter 25: Network Statistics ....................................................................................................................311
Overview...................................................................................................................................................312
Traffic Comparison Statistics....................................................................................................................313
Error Group Statistics ............................................................................................................................... 316
Historical Status Charts ............................................................................................................................318
Tools ..............................................................................................................................................................321
Chapter 26: Software/Configuration Updates .............................................................................................323
Overview...................................................................................................................................................324
Upgrade Firmware Image via HTTP.........................................................................................................325
Upgrade Firmware Image via TFTP .........................................................................................................327
Upload or Download a Configuration File via HTTP.................................................................................329
Configuration File Upload...................................................................................................................329
Configuration File Download ..............................................................................................................331
Download or Upload a Configuration File via TFTP .................................................................................332
Configuration File Upload...................................................................................................................332
Configuration File Download ..............................................................................................................333
Chapter 27: Cable Diagnostics ...................................................................................................................335
Chapter 28: Rebooting the AT-GS950/48PS .............................................................................................. 337
Switch Reboot ..........................................................................................................................................338
Configure Factory Default Values.............................................................................................................340
Password Protection of Factory Reset .....................................................................................................342
Disabling Factory Default Reset Feature ...........................................................................................342
Enabling Factory Default Reset .........................................................................................................344
Chapter 29: Pinging a Remote System .......................................................................................................347
Appendix A: MSTP Overview .......................................................................................................................349
Overview...................................................................................................................................................350
Multiple Spanning Tree Instance (MSTI) ..................................................................................................352
Resolving VLAN Fragmentation.........................................................................................................352
Multiple VLANs Assigned to an MSTI ................................................................................................353
General Guidelines...................................................................................................................................355
VLAN and MSTI Associations .................................................................................................................. 356
Ports in Multiple MSTIs.............................................................................................................................357
Multiple Spanning Tree Regions ..............................................................................................................358
MST Region Guidelines .....................................................................................................................360
Common and Internal Spanning Tree (CIST) ....................................................................................362
MSTP with STP and RSTP ................................................................................................................ 362
Associating VLANs to MSTIs....................................................................................................................363
VLANs Across Different Regions..............................................................................................................365
Summary of Guidelines ............................................................................................................................367
Appendix B: AT-GS950/48PS Default Parameters ......................................................................................369