Interlogix NS3500-28T-4S User Manual - Manual (Page 13)

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1.4 Product Features
Physical Ports
■ 28-Port 10/100/1000Base-T Gigabit RJ-45 copper
■ 4 100/1000Base-X mini-GBIC/SFP slots, shared with Port-25 to Port-28
■ RJ-45 console interface for switch basic management and setup
Layer 2 Features
■ Prevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex)
■ High performance Store and Forward architecture, broadcast storm control, runt/CRC filtering eliminates
erroneous packets to optimize the network bandwidth
■ Supports VLAN
- IEEE 802.1Q tagged VLAN
- Provider Bridging (VLAN Q-in-Q) support (IEEE 802.1ad)
- Protocol VLAN
- Voice VLAN
- Private VLAN
- Management VLAN
- GVRP
■ Supports Spanning Tree Protocol
- STP (Spanning Tree Protocol)
- RSTP (Rapid Spanning Tree Protocol)
- MSTP (Multiple Spanning Tree Protocol)
- STP BPDU Guard, BPDU Filtering and BPDU Forwarding
■ Supports Link Aggregation
 IEEE 802.3ad Link Aggregation Control Protocol (LACP)
 Cisco ether-channel (Static Trunk)
 Maximum 8 trunk groups, up to 8 ports per trunk group
■ Provides Port Mirror (many-to-1)
■ Loop protection to avoid broadcast loops