8-Портовый Управляемый Коммерческий Гигабитный PoE+ Коммутатор с 2 SFP, 250W

L2+ Features：

Port-based VLAN and 802.1Q tag-based VLAN

Standard Spanning Tree 802.1d    

Rapid Spanning Tree (RSTP) 802.1w

･ Aggregation:

Link Aggregation Control Protocol (LACP) IEEE 802.3ad

Up to 13 groups

Up to 16 ports per group

<50ms ring protection for industrial high reliable application

･IGMP v1/v2 Snooping:

Limits bandwidth-intensive multicast traffic to only the requesters

Supports 1024 multicast groups 

Service Features：

Secures Telnet traffic in or out the switch, SSH v1 and v2 are supported

Encrypts the http traffic, allowing advance secure access to the browser-based management GUI

Locks MAC Addresses to ports, and limits the number of learned MAC addresses

Prevents unauthorized configuration and use of IP addresses

Prevents datagram with spoofed addresses from being in the network

Prevents ARP spoofing attacks and ARP

Prevents traffic on a LAN from being disrupted by a broadcast, multicast, or unicast storm on a port

･ ACLs:

Supports for up to 256 entries

Drops or rates limitation based on source and destination MAC, VLAN ID or IP address, protocol, port, DSCP / IP precedence, TCP/ UDP source and destination ports, 802.1p priority, Ethernet type, ICMP packets, IGMP packets, TCP flag

Quality of Service：

Supports 8 hardware queues

8 COS queues per port support strict priority and weighted round-robin (WRR)

802.1p(PCP) VLAN priority based

Ingress policer

Egress shaping and rate control

Per VLAN, per port and flow based

Device Management：

･ Web GUI Interface:

Built-in switch configuration utility for browser-based device configuration (HTTP/ HTTPs)

Supports configuration, system dashboard, maintenance, and monitoring

･ Dual Image:

Provides independent primary and secondary OS files for backup while upgrading

･ Firmware Upgrade:

Web browser upgrade (HTTP/ HTTPs) and TFTP

Upgrades through console port 

･ Port Mirroring:

Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe

Up to N-1 (N is Switch's Ports) ports can be mirrored to single destination port

A single session is supported

･ Other Management:

Single IP management, HTTP/HTTPs, SSH, RADIUS

DHCP Client, SNTP, Cable Diagnostics, Ping, Syslog

Telnet client (SSH secure support)

Green Ethernet Features：

･ Green and Energy-saving Ethernet (EEE):

Compliant IEEE802.3az Energy Efficient Ethernet Task Force

Automatically turns off power on Gigabit Ethernet RJ-45 port when detecting link down or Idle of client

Active mode is resumed without loss of any packets when the switch detects the link up

･ Cable Length Detection:

Adjusts the signal strength based on the cable length

Reduces the power consumption for cables shorter