24-Port 10/100/1000T + 4-Port 10G SFP+ Managed Switch with Color LCD Touch Screen

Physical Port

• 24 10/100/1000BASE-T Gigabit RJ45 copper ports 
• 4 10GBASE-SR/LR SFP+ slots, compatible with 1000BASE-SX/LX/BX SFP
• RJ45 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 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
  - IEEE 802.1D Spanning Tree Protocol
  - IEEE 802.1w Rapid Spanning Tree Protocol
  - 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 14 trunk groups, up to 4 ports per trunk group
  - Up to 80Gbps 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
• Supports ERPS (Ethernet Ring Protection Switching)
   

Layer 3 Features

• IP interfaces (Max. 128 VLAN interfaces)
• Routing table (Max. 128 routing entries)
• Routing Protocols (IPv4/IPv6 hardware static routing)
   

Quality of Service

• Ingress Shaper and Egress Rate Limit per port bandwidth control
• 8 priority queues on all switch ports
• Traffic classification
  - IEEE 802.1p CoS
  - TOS/DSCP/IP precedence of IPv4/IPv6 packets
  - IP TCP/UDP port number
  - Typical network application
• Strict priority and Weighted Round Robin (WRR) CoS policies
• Supports QoS and In/Out bandwidth control on each port
• Traffic-policing on the switch port
• DSCP remarking
   

Multicast

• Supports IGMP snooping v1, v2 and v3
• Supports MLD snooping v1 and v2
• Querier mode support
• IGMP snooping port filtering
• MLD snooping port filtering
• Multicast VLAN Registration (MVR) support
   

Security

• Authentication
  - IEEE 802.1x port-based/MAC-based network access authentication
  - Built-in RADIUS client to cooperate with the RADIUS servers
  - TACACS+ login users access authentication
  - RADIUS/TACACS+ users access authentication
• Access Control List
  - IP-based Access Control List (ACL)
  - MAC-based Access Control List
• Source MAC/IP address binding
• DHCP Snooping to filter untrusted DHCP messages
• Dynamic ARP Inspection discards ARP packets with invalid MAC address to IP address binding
• IP Source Guard prevents IP spoofing attacks
• IP address access management to prevent unauthorized intruder
   

Management

• IPv4 and IPv6 dual stack management
• Switch Management Interfaces
  - Console/Telnet Command Line Interface 
• Web switch management
  - SNMP v1, v2c, and v3 switch management
  - SSH/SSL secure access
  - 2.4-inch color LCD touch screen
• Four RMON groups (history, statistics, alarms, and events)
• IPv6 IP address/NTP/DNS management
• Built-in Trivial File Transfer Protocol (TFTP) client
• BOOTP and DHCP for IP address assignment
• System Maintenance
  - Firmware upload/download via HTTP/TFTP
  - Reset button for system reboot or reset to factory default
  - Dual images
• DHCP Relay
• DHCP Option 82
• User Privilege levels control
• NTP (Network Time Protocol)
• Link Layer Discovery Protocol (LLDP) and LLDP-MED
• Network Diagnostic
  - ICMPv6/ICMPv4 remote ping
  - Cable diagnostic technology provides the mechanism to detect and report potential cabling issues
• SFP-DDM (Digital Diagnostic Monitor)
• SMTP/Syslog remote alarm
• SNMP trap for interface Link Up and Link Down notification
• System Log
• Reset button for system reboot or reset to factory default
• PLANET Smart Discovery Utility for deployment management
   

Redundant Power System (GS-5220-24T4XVR)

• Redundant 100~240V AC/36-60V DC dual power 
• Active-active redundant power failure protection
• Backup of catastrophic power failure on one supply
• Fault tolerance and resilience