● 24 Gigabit POE Ports, 4 Gigabit Combo Ports, 1 Console Port
● Compatible with IEEE802.3at and IEEE802.3af
● Ethernet port supports 10/100/1000M adaptive and POE functions
● Fanless design, Natural Cooling, 1U Rack Mount
● Support WEB, TELNET, CLI, SSH, SNMP, RMON management
● Support POE Power Management
● Lightning Protection Surge
Specifications
| Model | GS2028PS4 |
| Interface | 24 * 10/100/1000M POE Ports + 4 * Gigabit SFP/TP Combo Ports + 1 * Console Port |
| Network Protocols | IEEE 802.3IEEE 802.3uIEEE 802.3ab/ad/az/af/atIEEE 802.3xIEEE 802.1qIEEE 802.1p, QoSIGMP Snooping |
| PoE Parameters | PoE Standard: IEEE802.3at (30W) and IEEE802.3af (15.4w) |
| PoE compatibility: IEEE 802.3af/at adaptive | |
| POE port output: DC48-55V | |
| Power Pin Assignment: Power over spare pairs 1/2(+) and 3/6 (-) | |
| Port Lightning Protection | General Mode 6KV,Differential Mode 4KV,ESD 15KV |
| Network Transmission Medium | 10BASE-T: Cat3, 4, 5 UTP (≤ 100 m)100BASE-TX: UTP (≤100 m) above Cat51000BASE-TX: UTP (≤100 m) above Cat5 |
| Optical | Multimode fiber: 1310nm, 2KmSingle-mode fiber: 1310nm, 20/40 Km 1550nm, 60/80/100/120Km |
| The LED indicator | SYS, PWR, Link (lines 2, 4) / Act (lines 1, 3) |
| Power Supply | Machine input voltage: AC110-240VOutput: DC52V 5.76A Total power: 300W |
| Physical Dimension | Product size (L×W×H): 445mm × 285mm × 45mmPackage size (L×WxH): 470mm × 350mm × 120mm |
| Working Environment | Operating Temperature: -20° ~ 55 °CStorage Temperature: -40 ° ~ 85 °COperating Humidity: 10% ~ 95%, non-condensingWorking height: up to 10,000 feet (3,000 meters)Storage height: up to 10,000 feet (3,000 meters) |
| Technical Indicators | |
| Bandwidth | 56Gbps (non-blocking) |
| Packet Forwarding rate | 41.66Mpps |
| Packet Buffer Memory | 4M |
| Memory Capacity | 128MB |
| Flash Capacity | 16MB |
| Jumbo frame | 9.6Kbytes |
| VLANs | 4096 |
| MAC | 8K |
| Forwarding Mode | Store-And-Forward |
| Layer 2 Software Function | |
| Port Management | Enable/Disable Port |
| Speed, Duplex, MTU Setting | |
| Flow-control | |
| Port Information Check | |
| Port Mirroring | Supports both side-way ports mirroring |
| Port Speed Limit | Supports port-based input/output bandwidth management |
| Port Isolation | Support the downlink port isolation and can communicate with the uplink port |
| Storm Suppression | Supports unknown unicast, multicast, unknown multicastbroadcast type storm suppressionStorm suppression based on bandwidth regulation and storm filtering |
| Link Aggregation | Support static manual aggregationSupport LACP dynamic aggregation |
| VLAN | Access |
| Trunk | |
| Hybrid | |
| Support port, protocol, MAC-based VLAN partitioning | |
| Support GVRP dynamic VLAN registration | |
| Voice VLAN | |
| MAC | Support static addition, deletion |
| MAC addresses learning limit | |
| Support dynamic aging time setting | |
| Spanning tree | Support STP spanning tree protocolSupports RSTP Rapid Spanning Tree ProtocolSupports MSTP Rapid Spanning Tree Protocol |
| Multicast | Support static addition, deletionIGMP-snooping |
| Support MLD-Snooping | |
| Support v1/2/3 dynamic multicast monitor | |
| DDM | Support SFP/SFP+DDM |
| Extended Function | |
| ACL | Based on source MAC, destination MAC, protocol type, source IP, destination IP, L4 port |
| QoS | Based on 802.1p (COS) classification |
| Based on the DSCP classification | |
| Classification based on source IP, destination IP and port number | |
| Support SP, WRR scheduling strategy | |
| Support flow rate limit CAR | |
| LLDP | Support LLDP link discovery protocol |
| User settings | Add/delete users |
| Log | User login, operation, status, events |
| Anti-attack | DOS defense |
| Support CPU protection and limits the rate of sending CPU packets | |
| ARP binding (IP, MAC, PORT binding) | |
| Certification | Support 802.1x port authentication |
| Support AAA certification | |
| Network diagnosis | Support ping, telnet, trace |
| System Management | Device reset, configuration save/restore, upgrade management, time setting, etc. |
| Management function | |
| CLI | Support serial port command line management |
| SSH | Support SSHv1/2 remote management |
| TELNET | Support telnet remote management |
| WEB | Support Layer 2 settings, Layer 2 and Layer 3 monitor |
| SNMP | SNMP V1/V2/V3 |
| Support trap: ColdStart, WarmStart, LinkDown, LinkUp | |
| RMON | Support RMON v1 |
| POE | Support PoE power supply |
| Other functions | Support DHCP Snooping, Option82 |
| Support dynamic ARP detection | |
| Support TACACS+ certification | |
| Support DNS certification | |
| Support port security settings | |
| Support MVR protocol | |
| Support cable detection VCT function | |
| Support UDLD protocol | |
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