24-Port 10/100Mbps + 2-Port Gigabit TP / SFP Managed 802.3at PoE Switch

Physical Port
　　• 24-Port 10/100Base-TX Fast Ethernet ports with IEEE 802.3af / IEEE 802.3at PoE injector
　　• 2 10/100/1000Base-T TP combo interfaces
　　• 2 1000Base-X mini-GBIC/SFP slots, shared with Port-25 and Port-26
　　• Reset button for system management
　　• 1 RS-232 male DB9 console interface for Switch basic management and setup

Power over Ethernet
　　• Complies with IEEE 802.3af / IEEE 802.3at Power over Ethernet End-Span PSE
　　• Up to 24 IEEE 802.3af devices powered
　　• Up to 11 IEEE 802.3at devices powered
　　• Supports PoE Power up to 15.4 watts / 30 watts for each PoE port
　　• Auto detect powered device (PD)
　　• Circuit protection prevent power interference between ports
　　• Remote power feeding up to 100m
　　• PoE Management
　　　–IEEE 802.3af and IEEE 802.3at mode switch control
　　　–Total PoE power budget control
　　　–Per port PoE function enable/disable
　　　–PoE Admin-mode control
　　　–PoE Port Power feeding priority
　　　–Per PoE port power limit
　　　–PD classification detection
　　　–Over Temperature Protection function
　　　–Temperature Threshold Control
　　　–PoE Usage Threshold Control

Layer 2 Features
　　• Prevents packet loss flow control
　　　–IEEE 802.3x pause frame flow control for full-duplex mode
　　　–Back-Pressure Flow Control in half-duplex mode
　　• High performance of Store-and-Forward architecture, runt/CRC filtering eliminates erroneous
　　　packets to optimize the network bandwidth
　　• Broadcast / Multicast / Unicast storm control
　　• 8K MAC address table, automatic source address learning and ageing
　　• Supports VLAN
　　　–IEEE 802.1Q Tag-based VLAN
　　　–Port-Based VLAN
　　　–Q-in-Q tunneling
　　　–GVRP for dynamic VLAN Management
　　　–Private VLAN Edge (PVE / Protect Port)
　　• Supports Link Aggregation
　　　–up to 13 trunk groups
　　　–up to 8 ports per trunk group with 1.6Gbps bandwidth (full duplex Mode)
　　　–IEEE 802.3ad LACP (Link Aggregation Control Protocol)
　　　–Cisco ether-channel (Static Trunk)
　　• Spanning Tree Protocol
　　　–STP, IEEE 802.1D (Classic Spanning Tree Protocol)
　　　–MSTP, IEEE 802.1s (Multiple Spanning Tree Protocol, spanning tree by VLAN)
　　• Port Mirroring to monitor the incoming or outgoing traffic on a particular port

Quality of Service
　　• 4 priority queues on all Switch ports
　　• Traffic classification
　　　–IEEE 802.1p CoS
　　　–IP TOS / DSCP to 802.1p priority mapping
　　　–Port-Based priority
　　• Strict priority and Weighted Round Robin (WRR) CoS policies
　　• Supports QoS and In/Out bandwidth control on each port
　　• In/Out rate limit control on each port

Multicast
　　• Supports IGMP Snooping v1 and v2
　　• IGMP Snooping v2 fast leave
　　• Querier mode support

Security
　　• IEEE 802.1x Port-based network access control protocol
　　• RADIUS users access authentication
　　• L3 / L4 Access Control List (ACL)
　　• Source IP-MAC / Port-Binding
　　• Port Security for Source MAC address entries filtering

Management
　　• Switch Management Interface
　　　–Telnet Command Line Interface
　　　–Web switch management
　　　–SNMP v1, v2c, v3 switch management
　　　–SSL switch management
　　• Three user privilege levels control (Admin, Operator, viewer)
　　• DHCP client for IP address assignment
　　• DHCP Option82 and DHCP Relay
　　• Link Layer Discovery Protocol (LLDP) for easy network management
　　• Built-in Trivial File Transfer Protocol (TFTP) client
　　• Firmware upgrade via TFTP or HTTP
　　• Configuration restore / backup via TFTP or HTTP
　　• Event message logging to remote Syslog server
　　• Alarm records extractable in standard CSV format for post processing
　　• Four RMON groups 1, 2, 3, 9 (history, statistics, alarms, and events)
　　• SNMP trap for interface Link Up and Link Down notification
　　• Supports Ping function
　　• Supports Simple Network Protocol (SNTP)