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Table Of Contents
RS400 5 ROS™ v3.5
3.2.8
Resetting Ports..............................................................................................................109
3.3 Troubleshooting ....................................................................................................................109
4 Ethernet Statistics .........................................................................................................................111
4.1 Viewing Ethernet Statistics....................................................................................................112
4.2 Viewing Ethernet Port Statistics ............................................................................................114
4.3 Clearing Ethernet Port Statistics ...........................................................................................119
4.4 Remote Monitoring (RMON) .................................................................................................120
4.4.1 RMON History Controls.................................................................................................120
4.4.2 RMON History Samples ................................................................................................122
4.4.3 RMON Alarms ...............................................................................................................125
4.5 RMON Events .......................................................................................................................129
4.6 RMON Event Log ..................................................................................................................131
5 Spanning Tree ..............................................................................................................................133
5.1 RSTP Operation....................................................................................................................133
5.1.1 RSTP States and Roles ................................................................................................134
5.1.2 Edge Ports.....................................................................................................................136
5.1.3 Point-to-Point and Multipoint Links................................................................................136
5.1.4 Path and Port Costs ......................................................................................................136
5.1.5 Bridge Diameter ............................................................................................................137
5.2 MSTP Operation ...................................................................................................................138
5.2.1 MST Regions and Interoperability .................................................................................138
5.2.2 MSTP Bridge and Port Roles ........................................................................................139
5.2.3 Benefits of MSTP ..........................................................................................................141
5.2.4 Implementing MSTP on a Bridged Network ..................................................................142
5.3 RSTP Applications ................................................................................................................143
5.3.1 RSTP in Structured Wiring Configurations ....................................................................143
5.3.2 RSTP in Ring Backbone Configurations .......................................................................144
5.3.3 RSTP Port Redundancy ................................................................................................145
5.4 Spanning Tree Configuration ................................................................................................146
5.4.1 Bridge RSTP Parameters..............................................................................................147
5.4.2 Port RSTP Parameters..................................................................................................150
5.4.3 MST Region Identifier....................................................................................................153
5.4.4 Bridge MSTI Parameters...............................................................................................154
5.4.5 Port MSTI Parameters...................................................................................................155
5.5 Spanning Tree Statistics .......................................................................................................157
5.5.1 Bridge RSTP Statistics ..................................................................................................157
5.5.2 Port RSTP Statistics......................................................................................................159
5.5.3 Bridge MSTI Statistics ...................................................................................................162
5.5.4 Port MSTI Statistics.......................................................................................................163
5.6 Troubleshooting ....................................................................................................................166
6 VLANs...........................................................................................................................................169
6.1 VLAN Operation ....................................................................................................................169
6.1.1 VLANs and Tags ...........................................................................................................169
6.1.2 Tagged vs. Untagged Frames.......................................................................................169
6.1.3 Native VLAN..................................................................................................................169
6.1.4 Management VLAN .......................................................................................................169
6.1.5 Edge and Trunk Port Types ..........................................................................................170
6.1.6 VLAN Ingress and Egress Rules...................................................................................170