Viewing the Software Core Files Generated by the System......................................................856Manage VLANs using SNMP............................................................................................................. 857Creating a VLAN.......................................................................................................................... 857Assigning a VLAN Alias................................................................................................................ 857Displaying the Ports in a VLAN................................................................................................... 858Add Tagged and Untagged Ports to a VLAN..............................................................................858Managing Overload on Startup........................................................................................................ 859Enabling and Disabling a Port using SNMP......................................................................................859Fetch Dynamic MAC Entries using SNMP........................................................................................860Deriving Interface Indices................................................................................................................. 861Monitor Port-Channels.................................................................................................................... 862Troubleshooting SNMP Operation.................................................................................................. 86447 Storm Control.................................................................................................865Configure Storm Control................................................................................................................. 865Configuring Storm Control from INTERFACE Mode.................................................................865Configuring Storm Control from CONFIGURATION Mode......................................................86648 Spanning Tree Protocol (STP)..................................................................... 867Protocol Overview............................................................................................................................ 867Configure Spanning Tree................................................................................................................. 867Related Configuration Tasks.......................................................................................................867Important Points to Remember....................................................................................................... 868Configuring Interfaces for Layer 2 Mode........................................................................................ 868Enabling Spanning Tree Protocol Globally......................................................................................869Adding an Interface to the Spanning Tree Group............................................................................871Modifying Global Parameters........................................................................................................... 872Modifying Interface STP Parameters................................................................................................873Enabling PortFast.............................................................................................................................. 873Prevent Network Disruptions with BPDU Guard....................................................................... 874Selecting STP Root........................................................................................................................... 876STP Root Guard.................................................................................................................................877Root Guard Scenario...................................................................................................................877Configuring Root Guard............................................................................................................. 878Enabling SNMP Traps for Root Elections and Topology Changes................................................. 879Configuring Spanning Trees as Hitless............................................................................................ 879STP Loop Guard................................................................................................................................880Configuring Loop Guard.............................................................................................................881Displaying STP Guard Configuration............................................................................................... 88249 SupportAssist..................................................................................................883Configuring SupportAssist Using a Configuration Wizard.............................................................. 88428
