Planet GS-5220-48T4X User Manual page 11

User's Manual of GS-5220-48T4X
Robust Layer 2 Features
The GS-5220-48T4X can be programmed for advanced switch management functions such as dynamic port link aggregation,
Q-in-Q VLAN, private VLAN, Multiple Spanning Tree protocol (MSTP), Layer 2 to Layer 4 QoS, bandwidth control and
IGMP/MLD Snooping. Via the link aggregation of supporting ports, the GS-5220-48T4X allows the operation of a high-speed
trunk to combine with multiple fiber ports and supports fail-over as well.
Powerful Security
The GS-5220-48T4X offers a comprehensive layer 2 to layer 4 Access Control List (ACL) for enforcing security to the edge. It
can be used to restrict network access by denying packets based on source and destination IP address, TCP/UDP ports 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. The GS-5220-48T4X 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 administrators can now
construct highly secured corporate networks with considerably less time and effort than before.
Excellent Traffic Control
The GS-5220-48T4X is loaded with powerful traffic management and QoS features to enhance connection services by SMBs.
The QoS features include wire-speed Layer 4 traffic classifiers and bandwidth limit that are particular useful for multi-tenant unit,
multi business unit, Telco, or Network Service Provider's applications. It also empowers the enterprises to take full advantages
of the limited network resources and guarantees the best performance in VoIP and video conferencing transmission.
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