RuggedCom RSG2488

RUGGEDCOM RSG2488
User Guide
Rugged Operating System (ROS)®
vii
5.1.1.7 VLAN Advantages ............................................................................................... 114
5.1.2 Viewing a List of VLANs ................................................................................................ 115
5.1.3 Configuring VLANs for Ethernet Ports ............................................................................. 116
5.1.4 Managing Static VLANs ................................................................................................. 117
5.1.4.1 Viewing a List of Static VLANs ............................................................................ 117
5.1.4.2 Adding a Static VLAN ......................................................................................... 118
5.1.4.3 Deleting a Static VLAN ........................................................................................ 119
5.2 Managing Spanning Tree Protocol ............................................................................................. 120
5.2.1 RSTP Operation ............................................................................................................ 120
5.2.1.1 RSTP States and Roles ...................................................................................... 121
5.2.1.2 Edge Ports ......................................................................................................... 123
5.2.1.3 Point-to-Point and Multipoint Links ....................................................................... 123
5.2.1.4 Path and Port Costs ............................................................................................ 123
5.2.1.5 Bridge Diameter .................................................................................................. 124
5.2.1.6 eRSTP ............................................................................................................... 125
5.2.1.7 Fast Root Failover .............................................................................................. 125
5.2.2 RSTP Applications ......................................................................................................... 126
5.2.2.1 RSTP in Structured Wiring Configurations ............................................................ 126
5.2.2.2 RSTP in Ring Backbone Configurations ............................................................... 127
5.2.2.3 RSTP Port Redundancy ...................................................................................... 129
5.2.3 MSTP Operation ............................................................................................................ 129
5.2.3.1 MSTP Regions and Interoperability ...................................................................... 130
5.2.3.2 MSTP Bridge and Port Roles ............................................................................... 131
5.2.3.3 Benefits of MSTP ................................................................................................ 132
5.2.3.4 Implementing MSTP on a Bridged Network ........................................................... 133
5.2.4 Configuring STP Globally ............................................................................................... 133
5.2.5 Configuring STP for Ethernet Ports ................................................................................. 135
5.2.6 Configuring eRSTP ........................................................................................................ 137
5.2.7 Viewing Global Statistics for STP .................................................................................... 139
5.2.8 Viewing STP Statistics for Ethernet Ports ........................................................................ 141
5.2.9 Managing Multiple Spanning Tree Instances .................................................................... 143
5.2.9.1 Viewing Statistics for Global MSTIs ...................................................................... 143
5.2.9.2 Viewing Statistics for Port MSTIs ......................................................................... 145
5.2.9.3 Configuring the MST Region Identifier .................................................................. 146
5.2.9.4 Configuring a Global MSTI .................................................................................. 147
5.2.9.5 Configuring an MSTI for an Ethernet Port ............................................................. 147
5.2.10 Clearing Spanning Tree Protocol Statistics .................................................................... 149
5.3 Managing Classes of Service .................................................................................................... 149
5.3.1 Configuring Classes of Service Globally .......................................................................... 150
5.3.2 Configuring Classes of Service for Specific Ethernet Ports ................................................ 151