GS-5220-Series (V4) User Manual

Table Of Contents
Users Manual of GS-5220 PoE Series Managed Switch
17
Robust Layer 2 Features
The GS-5220 PoE Series can be programmed for advanced switch management functions, such as dynamic port link
aggregation, Q-in-Q VLAN, Multiple Spanning Tree Protocol (MSTP), Layer 2/4 QoS, bandwidth control and IGMP/MLD
snooping. The GS-5220 PoE Series allows the operation of a high-speed trunk combining with multiple ports.
Powerful Security
The GS-5220 PoE Series offers a comprehensive Layer 2 to Layer 4 access control list (ACL) for enforcing security to the
edge. It can be used to restrict to network access by denying packets based on source and destination IP address, TCP/UDP
port number or defined typical network applications. Its protection mechanism also comprises 802.1x Port-based and
MAC-based user and device authentication. With the private VLAN function, communication between edge ports can be
prevented to ensure user privacy.
Enhanced Security and Traffic Control
The GS-5220 PoE Series also provides DHCP Snooping, IP Source Guard and Dynamic ARP Inspection functions to
prevent IP snooping from attack and discard ARP packets with invalid MAC address. The network administrator can now
construct highly-secure corporate networks with considerably less time and effort than before.