Administrator Guide

Fetch Dynamic MAC Entries using SNMP........................................................................................ 785
Deriving Interface Indices.................................................................................................................786
Monitor Port-Channels.....................................................................................................................787
Troubleshooting SNMP Operation...................................................................................................788
46 Storm Control.................................................................................................790
Configure Storm Control................................................................................................................. 790
Configuring Storm Control from INTERFACE Mode.................................................................790
Configuring Storm Control from CONFIGURATION Mode......................................................790
47 Spanning Tree Protocol (STP)...................................................................... 791
Protocol Overview.............................................................................................................................791
Configure Spanning Tree..................................................................................................................791
Related Configuration Tasks....................................................................................................... 791
Important Points to Remember....................................................................................................... 792
Configuring Interfaces for Layer 2 Mode.........................................................................................792
Enabling Spanning Tree Protocol Globally......................................................................................793
Adding an Interface to the Spanning Tree Group........................................................................... 795
Modifying Global Parameters...........................................................................................................796
Modifying Interface STP Parameters................................................................................................ 797
Enabling PortFast.............................................................................................................................. 797
Prevent Network Disruptions with BPDU Guard....................................................................... 798
Selecting STP Root...........................................................................................................................800
STP Root Guard.................................................................................................................................801
Root Guard Scenario...................................................................................................................801
Configuring Root Guard.............................................................................................................802
Enabling SNMP Traps for Root Elections and Topology Changes.................................................803
Configuring Spanning Trees as Hitless............................................................................................803
STP Loop Guard................................................................................................................................804
Configuring Loop Guard............................................................................................................ 805
Displaying STP Guard Configuration...............................................................................................806
48 System Time and Date.................................................................................. 807
Network Time Protocol....................................................................................................................807
Protocol Overview......................................................................................................................808
Configure the Network Time Protocol......................................................................................809
Enabling NTP.............................................................................................................................. 809
Configuring NTP Broadcasts......................................................................................................809
Disabling NTP on an Interface....................................................................................................810
Configuring a Source IP Address for NTP Packets.................................................................... 810
Configuring NTP Authentication................................................................................................ 810
Dell Networking OS Time and Date................................................................................................. 814