Physical Port
- 24 10/100/1000BASE-T Gigabit Ethernet RJ45 ports with IEEE 802.3at PoE+ injector
- 4 100/1000BASE-X mini-GBIC/SFP combo interface with Port-21 to Port-24
- 4 10GBASE-SR/LR SFP+ slots, compatible with 1000BASE-SX/LX/BX SFP
- 1 RJ45 console interface for basic management and setup
Power over Ethernet
- Complies with IEEE 802.3at PoE+/end-span PSE
- Up to 24 IEEE 802.3af/802.3at devices powered
- Supports PoE power up to 36 watts for each PoE port
- Auto detects powered device (PD)
- Circuit protection prevents power interference between ports
- Remote power feeding up to 100M
- PoE Management
- Total PoE power budget control
- Per port PoE function enable/disable
- PoE port power feeding priority
- Per PoE port power limit
- PD classification detection
- PD alive check
- PoE schedule
- PD scheduled power recycling
Layer 2 Features
- IEEE 802.3x pause frame flow control (full-duplex)
- Store-and-forward architecture and “runt/CRC” filtering
- Storm control support
- Broadcast
- Unicast
- Multicast
- VLAN
- IEEE 802.1Q tagged VLAN
- Up to 256 VLAN groups, out of 4095 VLAN IDs
- Provider Bridging (VLAN Q-in-Q) support (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 10 trunk groups, up to 16 ports per trunk group
- Up to 32Gbps bandwidth in 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 a maximum of 8 static routes and route summarization
- Supports a maximum of 32 routing entries
Quality of Service
- 8 priority queues on all switch ports
- Traffic classification
- IEEE 802.1p CoS
- IP TOS/DSCP/IP precedence
- IP TCP/UDP port number
- Typical network application
- Strict priority and Weighted Round Robin (WRR) CoS policies
- Traffic-policing on the switch port
- DSCP remarking
Multicast
- Supports IGMP snooping v1, v2 and v3
- Support MLD snooping v1 and v2
- Supports querier mode
- IGMP snooping port filtering
- MLD snooping port filtering
- MVR (Multicast VLAN Registration)
Security
- IEEE 802.1x port-based/MAC-based network access authentication
- Built-in RADIUS client to cooperate with the RADIUS servers
- RADIUS/TACACS+ customers access authentication
- IP-based access control List (ACL)
- MAC-based access control list
- DHCP snooping to filter distrusted 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
- Switch management interfaces
- Console and Telnet command line interface
- Web switch management
- SNMP v1, v2c, and v3 switch management
- SSH/SSL secure access
- Four RMON groups (history, statistics, alarms and events)
- IPv6 address, NTP and DNS management
- Built-in Trivial File transfer Protocol (TFTP) client
- DHCP client
- Firmware upload/download via HTTP/TFTP
- DHCP Relay
- DHCP Option 82
- Customer Privilege levels control
- NTP (network time protocol)
- Link Layer Discovery Protocol (LLDP)
- Cable diagnostic technology provides the mechanism to detect and report potential cabling issues
- Reset button for system reboot or reset to factory default
Redundant Power System (GS-5220-24P4XR)
- 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
