xStack DGS-3120系列 L2 網管型PoE Gigabit交換器

44埠10/100/1000Base-T PoE + 4埠Combo 10/100/1000Base-T PoE/SFP + 兩埠實體堆疊埠。

DGS-3120-48PC為xStack系列最新一代L2 Gigabt交換器機種。支援D-Link Green節能技術，領先業界於網管型交換器導入節能機制，可偵測線路長度及遠端電腦開關機狀態自動調整電力輸出。提供完整的E2ES安全性功能及支援IPv6功能，可提供客戶具備未來相容性、擴充性及安全應用的需求。 

DGS-3120系列提供豐富的Endpoint Security機制：

•  Host-based 802.1X認證/授權

•  DHCP Server Screening

•  支援Microsoft 802.1X/ DHCP NAP

•  整合D-Link Zone Defense區域聯防機制

DGS-3120 支援D-Link Green節能技術

1.  自動偵測網路線長度: 傳統交換器連接埠電力輸出可將訊號傳輸至100公尺。

     但多數辦公網路環境連接電腦距離多在50公尺之內，

     將會依據網路線長度自動調節電力輸出在不影響傳輸效能狀況下節省交換器電力需求。

2.  自動偵測電腦開關機: 自動偵測遠端設備開關機狀態，電腦關機時該連接埠自動調整呈休眠狀態，大幅節省電。

通過IPv6 Ready Logo Phase2認證，支援IPv6功能。

specifications

• Provides 44-port 10/100/1000 BASE-T PoE port and 4-port Combo 10/100 / 1000BASE-T PoE / SFP port.
• The 44-port 10/100 / 1000BASE-T port can support 802.3af and 802.3at PoE network power supply functions, and the maximum power output power can reach 370W.
• Provide two-port physical stacking port, support 40Gbps stacking bandwidth and 6 switches physical stacking.
• Support SIM, can manage up to 32 switches with a single IP.
• The bandwidth of the switch backplane is 136 Gbps, and the transmission rate of 64 Byte packets is 101Mpps.
• 16K MAC Address Table.
• Support 13K Bytes Jumbo Frame function.
• Support IGMP Snooping v1 / v2; support MLD Snooping function.
• Support 802.1D STP, 802.1w RSTP and 802.1s MSTP Spanning Tree functions.
• Support Loopback Detection
• Support 802.3ad Link Aggregation function, each group can set up 32 groups, each group can set up 8 ports.
• Supports one-to-one, many-to-one port mirroring and Per flow mirroring.
• Support IEEE 802.1ab LLDP Link Layer to automatically search for network devices.
• Support 4K VLAN Groups, support 802.1Q, GVRP, 802.1v Protocol VLAN, VLAN Trunking function.
• Support 802.1p QoS, can set 8 priority orders;
• The priority order can be set according to 802.1p priority, VLAN, Ether type, MAC Address, IPv4 / v6 Address, DSCP, Protocol Type, TCP / UDP port number.
• Support Port-based / Flow-based bandwidth control function.
• Support ACL function, can be set according to Ether Type, VLAN, 802.1p, MAC, IP, DSCP, Protocol Type, TCP / UDP Port.
• Provide a switch self-protection mechanism to ensure the normal operation of the switch when malicious network traffic erupts.
• Support D-Link Green energy-saving technology, which can automatically adjust the power consumption according to the distance of the equipment and whether it is turned on or not.
• Provide 802.1x Port Access Control authentication mechanism.
• Provide SSH, SSL, Web-based, CLI, SNMP, RMONv1 / v2 management mechanism.
• With LED display light, it can display the machine power, connection, speed and other status.
• It meets the standard 19-inch rack specifications and can be installed in a 19-inch rack.
• Support Dual Image function.
• Passed IPv6 Ready Logo Phase2 certification, supporting IPv6 function.
• With cable quality detection Cable Diagnostic
• Built-in 100-240VAC, 50 / 60Hz AC Power.
• Passed FCC class A, CE class A, C-Tick class A, UL and other electrical inspection safety certification.