• 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 / Unicast / Unknown Unicast
• Supports VLAN – IEEE 802.1Q tagged VLAN
                         – Up to 255 VLANs 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
                         – IP Subnet-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 12 trunk groups, up to 8 ports per trunk group
                                          – Up to 16Gbps 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

Hardware 

• Copper Ports: 8 10/100/1000Base-T RJ-45 Auto-MDI/MDI-X ports, shared with Port-1~Port-8
• SFP/mini-GBIC Slots: 24 100/1000Base-X dual-speed SFP interfaces
• Console:  1 x RS-232-to-RJ45 serial port (115200, 8, N, 1)
• Switch Architecture:  Store-and-Forward
• Switch Fabric: 48Gbps / non-blocking
• Throughput:  35.7Mpps@64Bytes
• Address Table: 16K entries, automatic source address learning and ageing
• Shared Data Buffer: 16M bits
• Flow Control: IEEE 802.3x pause frame for full-duplex Back pressure for half-duplex
• Jumbo Frame: 10K bytes
• Reset Button: < 5 sec: System reboot > 5 sec: Factory default
• Dimensions :(W x D x H) 440 x 200 x 44.5 mm, 1U height
• Weight : 2745g
• LED : - System: PWR (Green)
               DC (Green) (GS-5220-16S8CR Only)
               Fault (Red)
               FAN (Red)
            - 10/100/1000T RJ45 Interfaces (Port 1 to Port 8): 1000Mbps LNK/ACT (Green)
                                                                          10/100Mbps LNK/ACT (Orange)
            - 100/1000Mbps SFP Interfaces (Port 1 to Port 24): 1000Mbps LNK/ACT (Green)
                                                                           100Mbps LNK/ACT (Orange)
• Power Requirements – AC:  100~240V AC, 50/60Hz
• Power Requirements – DC : 48V DC @ 0.6A

                                         Range: 36 ~ 60V

• Power Consumption:  45 watts / 153 BTU (max.)
• ESD Protection: 6KV DC

Layer 2 functions 

• Port Configuration: Port disable / enable
                              Auto-negotiation 10/100/1000Mbps full and half duplex mode selection
                              Flow control disable / enable
• Port Status:Display each port’s speed duplex mode, link status, flow control status, auto-negotiation status, trunk status
• Port Mirroring:  TX / RX / Both
                         Many-to-1 monitor
• VLAN : 802.1Q tagged based VLAN
             Q-in-Q tunneling

           Private VLAN Edge (PVE)
           MAC-based VLAN
           Protocol-based VLAN
           Voice VLAN
           IP Subnet-based VLAN
           MVR (Multicast VLAN Registration)
           Up to 255 VLAN groups, out of 4094 VLAN IDs

• Link Aggregation : IEEE 802.3ad LACP / Static Trunk
                            12 groups of 8-port trunk supported
• 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
• QoS: Traffic classification based, Strict priority and WRR
          8-Level priority for switching
          - Port Number
          - 802.1p priority
          - 802.1Q VLAN tag
          - DSCP/TOS field in IP packet
• IGMP Snooping: IGMP (v1/v2/v3) Snooping, up to 255 multicast groups

                        IGMP Querier mode support

• MLD Snooping:  MLD (v1/v2) Snooping, up to 255 multicast groups
•                         MLD Querier mode support
• Access Control List: IP-based ACL / MAC-based ACL

                             Up to 256 entries

• Bandwidth Control : Per port bandwidth control
                                Ingress: 100Kbps~1000Mbps
                                Egress: 100Kbps~1000Mbps

Layer 3 Functions

• IP Interfaces: Max. 128 VLAN interfaces
• Routing Table: Max. 32 routing entries
• Routing Protocols: IPv4 hardware Static Routing
                             IPv6 hardware Static Routing

Management

• Basic Management Interfaces Console / Telnet / Web browser / SNMP v1, v2c
• Secure Management Interfaces SSH, SSL, SNMP v3
• SNMP MIBs: RFC 1213 MIB-II

                   RFC 1493 Bridge MIB
                   RFC 1643 Ethernet MIB
                   RFC 2863 Interface MIB
                   RFC 2665 Ether-Like MIB
                   RFC 2819 RMON MIB (Group 1, 2, 3 and 9)
                   RFC 2737 Entity MIB
                   RFC 2618 RADIUS Client MIB
                   RFC 2863 IF-MIB
                   RFC 2933 IGMP-STD-MIB
                   RFC 3411 SNMP-Frameworks-MIB
                   RFC 4292 IP Forward MIB
                   RFC 4293 IP MIB
                   RFC 4836 MAU-MIB
                   IEEE 802.1X PAE
                   LLDP

Standards Conformance

• Regulation Compliance: FCC Part 15 Class A, CE
• Standards Compliance:

IEEE 802.3 10Base-T
IEEE 802.3u 100Base-TX/100Base-FX
IEEE 802.3z Gigabit SX/LX
IEEE 802.3ab Gigabit 1000Base-T
IEEE 802.3x Flow Control and Back pressure
IEEE 802.3ad port trunk with LACP
IEEE 802.1D Spanning Tree protocol
IEEE 802.1w Rapid Spanning Tree protocol
IEEE 802.1s Multiple Spanning Tree protocol
IEEE 802.1p Class of service
IEEE 802.1Q VLAN tagging
IEEE 802.1X port authentication network control
IEEE 802.1ab LLDP
RFC 768 UDP
RFC 793 TFTP
RFC 791 IP
RFC 792 ICMP
RFC 2068 HTTP
RFC 1112 IGMP version 1
RFC 2236 IGMP version 2
RFC 3376 IGMP version 3
RFC 2710 MLD version 1
FRC 3810 MLD version 2

Environment

• Operating :Temperature:0 ~ 50 degrees C
                 Relative Humidity:5 ~ 95% (non-condensing)
• Storage :Temperature:-10 ~ 70 degrees C
                Relative Humidity:5 ~ 95% (non-condensing)

1. Data Sheet