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8 Device Management 
This  section  helps  you  enhance  the  switch’s  traffic  forwarding  capacity  and  manage  the 
switch efficiently. The following five parts are included: 
MAC Binding: Perform static MAC address binding of the switch ports. 
QoS: Provide different service quality for various network  applications according to their 
different requirements. 
STP:  Eliminate  physical  loop  in  data  link  layer,  avoid  broadcast  storm  and  provide  link 
backup redundancy.   
IGSP: Manage and control multicast groups to save network bandwidth, to ensure better 
multicast security and to make each host’s separate billing convenient.   
SNMP: Manage the switch efficiently. 
8.1 MAC Binding 
8.1.1 Overview 
MAC binding provides the function of static MAC address table and MAC filtering: 
  Static MAC address table: After a port is bound with a MAC address, the device that 
matches the designated MAC address can access the network only through this port, 
not through other ports. 
  MAC filtering: After a port is bound with a MAC address, this port only allows the device 
with the designated MAC address, not other devices to access the network. 
Through the MAC binding function, a single port only allows the designated users to use 
network resources to ensure network security  and user authority and effectively prevent 
unauthorized users from gaining data by cheating and performing loiter net. 
Tip 
  Ports whose MAC  binding is enabled will automatically  disable the address learning 
function. 
  Bound MAC addresses will be manually added and deleted and will not be aged over 
time.