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Hardware
Included Power Adapter Yes
PoE No
Ethernet Port 24 × RJ-45 10/100/1000 Mbps
Optical Port 4 × SFP 100 Mbps/1 Gbps
Ethernet Port Speed 10/100/1000 Mbps
Optical Port Uplink Speed 100 Mbps/1 Gbps
Description of Function Slots Port 1-24:24 × RJ-45 10/100/1000 Mbps;
Port 25-28:4 × SFP 100 Mbps/1 Gbps
Management port 1 × Console port
Power Supply 100–240 VAC, 50/60 Hz, 1.0 A
Operating Temperature –5 °C to +45 °C (+23 °F to +113 °F)
Operating Humidity 5%–95% (RH)
Storage Temperature –40 °C to +70 °C (–40 °F to +158 °F)
Storage Humidity 5%–95% (RH)
Fanless Design Yes
Power Consumption Idling: 9 W
Full load: 23 W

Performance
Layer L2+
Management Type Yes
MTBF 150.86 years
Switching Capacity 56 Gbps
Packet Forwarding Rate 41.7 Mpps
Packet Buffer Size 12 Mbit
Jumbo Frame 10K Byte
MAC Table Size 8K
VLAN Number 4K
Dynamic ARP 128
Communication Standard 802.3x; 802.3ad; 802.1p; 802.1q; 802.1x; 802.1d; 802.1w; 802.1s

Features
Ring Network Protocol STP/RSTP/MSTP
PVST
Routing Static routing
IPV6 unitcast routing
VLAN Function Port-based VLAN
MAC-based VLAN
Link Aggregation Static link aggregation
Dynamic link aggregation
IEEE 802.3x Flow Control Yes
Multicast IGMP Snooping
PIM Snooping
Reliability LLDP
ARP ARP, Gratuitous ARP
Dynamic ARP Inspection
ARP anti-attack
ARP source suppression
ARP Detection
DHCP Function DHCP Client
DHCP Relay
Security 802.1X, centralized MAC address authentication
Port isolation
Dynamic ARP detection, preventing man-in-the-middle attack and ARP denial-of-service
IP/Port/MAC binding
QoS/ACL Packet filtering (Layer 2 to Layer 4)
Source MAC-, destination MAC-, Source IP (IPv4/IPv6)-, destination IP (IPv4/IPv6)-, TCP/UDP port number-, VLAN-based traffic classification
Time-based ACL
Two-way ACL policy (ingress and egress)
IPv6 ND
IPv6-Ping
IPv6-Tracert
IPv6-Telnet
Equipment Management Load update files and update using FTP
Configure through CLI, Telnet, and Console port
SNMPv1/v2/v3
NTP
Ping and Tracert
LLDP
Port loopback detection

General
Statics Protection Air discharge: 8 kV
Contact discharge: 6 kV
Lighting Protection Common mode: 1 kV
Differential mode: 0.5 kV
Net Weight 2.5 kg (5.51 lb)
Gross Weight 3.2 kg (7.05 lb)
Product Dimensions 440 mm × 160 mm × 44 mm
(17.32″ × 6.30″ × 1.73″) (L × W × H)
Packaging Dimensions 540 mm × 280 mm × 86 mm
(21.26″ × 11.02″ × 3.39″) (L × W × H)
Casing Material Sheet metal
Installation Desktop mount; rack mount
Certifications CE; FCC