> Physical Port

> ．24 10/100/1000BASE-T Gigabit Ethernet RJ45 ports

> ．4 10GBASE-SR/LR SFP+ slots, backward compatible with 100/1G/2.5GBASE-X SFP transceivers

> ．One USB Type C console interface for basic management and setup

> Hardware Conformance

> ．One 100 to 240V AC or dual 24 to 60V DC power input, redundant power with reverse polarity protection

> ．．Active-active redundant power failure protection

> ．．Backup of catastrophic power failure on one supply

> ．．Fault tolerance and resilience

> ．19-inch rack-mountable design

> ．Supports EFT protection for 6KV DC power and 6KV DC Ethernet ESD protection

> Digital Input and Digital Output

> ．2 digital input (DI)

> ．2 digital output (DO)

> ．Integrate sensors into auto alarm system

> ．Transfer alarm to IP network via SNMP trap

> Switching

> ．Hardware-based 10/100Mbps (half/full duplex), 1000Mbps (full duplex mode), auto-negotiation, and auto MDI/MDI-X

> ．Features Store-and-Forward mode with wire-speed filtering and forwarding rates

> ．IEEE 802.3x flow control for full duplex operation and back pressure for half duplex operation

> ．16K MAC address table size

> ．12K jumbo frame

> ．Automatic address learning and address aging

> ．Supports CSMA/CD protocol

> Layer 2 Features

> ．Prevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex)

> ．High performance Store and Forward architecture, broadcast storm control, and runt/CRC filtering that eliminates erroneous packets so as to optimize the network bandwidth

> ．Supports VLAN

> ．Supports Spanning Tree Protocol

> ．．STP (Spanning Tree Protocol)

> ．．RSTP (Rapid Spanning Tree Protocol)

> ．．MSTP (Multiple Spanning Tree Protocol)

> ．．STP BPDU Guard, BPDU Filtering and BPDU Forwarding

> ．Supports Link Aggregation

> ．．IEEE 802.3ad Link Aggregation Control Protocol (LACP)

> ．．Cisco ether-channel (Static Trunk)

> ．．Maximum 8 trunk groups, up to 8 ports per trunk group

> ．Provides port mirror (many-to-1)

> ．Loop protection to avoid broadcast loops

> ．Supports ERPS (Ethernet Ring Protection Switching)

> ．Link Layer Discovery Protocol (LLDP)

> Quality of Service

> ．Ingress/Egress Rate Limit per port bandwidth control

> ．Traffic classification

> ．．IEEE 802.1p CoS

> ．．TOS/DSCP/IP Precedence of IPv4/IPv6 packets

> ．Strict priority and Weighted Round Robin (WRR) CoS policies

> Security

> ．Storm Control support

> ．．Broadcast / Multicast / Unknown Unicast

> ．Authentication

> ．．Built-in RADIUS client to co-operate with the RADIUS servers

> ．．DHCP Option 82

> ．．RADIUS/TACACS+ login user access authentication

> ．Access Control List

> ．MAC Security

> ．Port Security for Source MAC address entries filtering

> ．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

> ．DoS Attack Prevention