4.4.2.1 Theory................................................................................................................. 22
4.2.2.2 SNMP Configuration ..................................................................................................... 23
4.4.3 Password ............................................................................................................... 26
4.4.4 CONSOLE ............................................................................................................. 26
4.4.5 System Upgrade .................................................................................................... 26
4.4.6 Saving Parameters ................................................................................................ 27
4.4.7 Parameters Backup & Recovery............................................................................ 27
4.4.8 Load Default........................................................................................................... 28
4.4.9 Reboot ................................................................................................................... 28
4.5 PORT MANAGEMENT ........................................................................................................ 29
4.5.1 Port Configuration.................................................................................................. 29
4.5.2 Port Statistics ......................................................................................................... 29
4.5.3 Port Band Restrict.................................................................................................. 30
4.6 REDUNDANCY.................................................................................................................. 31
4.6.1 Spanning Tree........................................................................................................ 31
4.6.2 Spanning Tree Configuration ................................................................................. 37
4.6.3 Link Aggregation .................................................................................................... 38
4.7 SECURITY........................................................................................................................ 39
4.7.1 VLAN...................................................................................................................... 39
4.7.1.1 Theory...........................................................................................................................39
4.7.1.2 VLAN Configuration ...................................................................................................... 43
4.7.2 MAC Address Bind................................................................................................. 48
4.7.3 MAC Address Filtering ........................................................................................... 49
4.7.4 MAC Address Learning.......................................................................................... 50
4.7.5 MAC Address Aging Time ...................................................................................... 51
4.8 QOS ............................................................................................................................... 52
4.8.1 Understand QOS ................................................................................................... 52
4.8.2 QOS Configuration................................................................................................. 53
4.9 MULTICAST ...................................................................................................................... 58
4.9.1 IGMP Snooping...................................................................................................... 58
4.9.2 Static Routing Port ................................................................................................. 60
4.10 PORT ANALYSIS ............................................................................................................. 60
4.10.1 Port Analysis ........................................................................................................ 60
4.10.2 Port Mirror ............................................................................................................ 61
4.11 STORM CONTROL........................................................................................................... 62
5.1 INCORRECT CONNECTIONS ............................................................................................... 63
5.1.1 Faulty or loose cables............................................................................................ 63
5.1.2 Non-standard cables.............................................................................................. 63