1.4 Product Features
Physical Port
24-Port 10/100/1000Base-T RJ45 copper (SGS-5220-24T2X)
24-Port 10/100/1000Base-T RJ45 copper with IEEE 802.3at / 802.3af Power over Ethernet Injector function
(SGS-5220-24P2X)
4 100/1000Base-X mini-GBIC/SFP slots, shared with Port-21 to Port-24 compatible with 100Base-FX SFP
2 10GBase-SR/LR SFP+ slots, compatible with 1000Base-SX/LX/BX SFP
2 10GBase-SR/LR SFP+ stackable slots
RJ45 console interface for basic management and setup
Stacking Features
■ Physical stacking up to 16 units, 384 Gigabit ports, 32 10 Gigabit ports
■ Single IP address stack management
■ Stacking architecture supports Chain and Ring mode
■ Plug and Play connectivity
■ Mirror across stack
■ Link Aggregation groups spanning multiple switches in a stack
■ Physical MAC address learning with MAC table synchronization across stack
Layer 2 Features
■ Prevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex)
■ High performance of Store-and-Forward architecture and runt/CRC filtering eliminates erroneous packets to optimize
the network bandwidth
■ Storm Control support
Broadcast / Multicast / Unknown unicast
■ Supports VLAN
IEEE 802.1Q tagged VLAN
Up to 255 VLANs groups, out of 4094 VLAN IDs
Supports provider bridging (VLAN Q-in-Q, IEEE 802.1ad)
Private VLAN Edge (PVE)
Protocol-based VLAN
MAC-based VLAN
Voice VLAN
■ Supports Spanning Tree Protocol
STP, IEEE 802.1D Spanning Tree Protocol
RSTP, IEEE 802.1w Rapid Spanning Tree Protocol
MSTP, IEEE 802.1s Multiple Spanning Tree Protocol, spanning tree by VLAN
BPDU Guard
■ Supports Link Aggregation
802.3ad Link Aggregation Control Protocol (LACP)
Cisco ether-channel (Static Trunk)
Maximum 10 trunk groups, up to 16 ports per trunk group
Up to 32Gbps bandwidth (full duplex mode)
■ Provides port mirror (many-to-1)
■ Port mirroring to monitor the incoming or outgoing traffic on a particular port
■ Loop protection to avoid broadcast loops
Layer 3 IP Routing Features
Supports maximum 128 static routes and route summarization
User's Manual of SGS-5220 Series
17