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GS-1224L-The Switch is a cost-effective web smart switch that meets all IEEE 802.3/u/ab/z Gigabit, Fast Ethernet specifications. It is equipped with 20 10/100/1000Base-T ports and 4 dual media ports that accommodate optional 10/100/1000Base-T or SFP modules. The switch can be managed through Ethernet port using Web browser, the network administrator can logon the switch to monitor, configure and control each port’s activity. In addition, the switch implements the QoS (Quality of Service), Port Mirror, VLAN, LACP, LAN security, Multicasting video stream protocol, and SNMP v2c. It is suitable for SMB application.

Key Features

QoS with Four Priority Queues
The QoS(Quality Of Service) feature provides four internal queues to support four different classifications of traffic. High priority packet streams experience less delay inside the switch, which supports lower latency for certain delay-sensitive traffic. The swith classify the packet as one of the four priorities according to 802.1p priority tag, DiffServ and/or IP TOS. The QoS operate at full wire speed. The actual scheduling at each egress port can be based upon a strict priority, weighted round robin or a mix of both.

Port Mirroring
This mechanism helps track network errors or abnormal packet transmission without interrupting the flow of data. Allow ingress traffic to be monitored by a single port that is defined as mirror capture port. The mirror capture port can be any 10/100 port, 10/100/1000 port. Mirroring multiple ports is possible but can create congestion at the mirror capture port.

Q-in-Q VLAN for Performance & Security
The VLAN feature in the switch offers the benefits of both security and performance. VLAN is used to isolate traffic between different users and thus provides better security. Limiting the broadcast traffic to within the same VLAN broadcast domain also enhances performance. VLAN support enabling advanced techniques such as “802.1Q-in-Q” to be deployed.

Multicasting VLAN reduce the multicast video streaming traffic in DVB application
Multicast VLAN is designed for applications (such as Digital Video Broadcasting (DVB)) using multicast traffic across an IP Ethernet network. The feature allows one single multicast VLAN to be shared among different subscriber VLANs on the network. This improves bandwidth utilization by reducing multicast traffic in the subscriber VLANs and simplifies multicast group management.

802.1x Access Control Improve Network Security
802.1x features enable user authentication for each network access attempt. Port security features allow you to limit the number of MAC addresses per port in order to control the number of stations for each port. Static MAC addresses can be defined for each port to ensure only registered machines are allowed to access. By enabling both of these features, you can establish an access mechanism based on user and machine identities, as well as control the number of access stations.

Port Trunk for Bandwidth Aggregation
The Gigabit ports can be combined together to create a multi-link load-sharing trunk. Up to 12 Gigabit ports can be set up per trunk. The switch supports up to 12 trunking groups. Port trunks are useful for switch-to-switch cascading, providing very high full-duplex speeds.

Trap Event for Exception Management
We use SNMP Trap mechanism to inform supervisor to know the instant abnormal status of the switch.

4 Dual Media Ports for Flexible Fiber Connection
Four dual media ports are provided for flexible fiber connection. You can select to install optional transceiver modules in these slots for short, medium or long distance fiber backbone attachment. Use of the SFP will disable their corresponding built-in 10/100/1000Base-T connections.

Build-in Web-base Management
Instead of using CLI interface, we provide a more convenient GUI for user. We just need to configure switch via Web Browser. It is more quickly for user to familiar the method to control switch on the basis of this design.

Standard Compliance

• IEEE 802.3 10Base-T Ethernet
• IEEE 802.3u 100Base-TX Fast Ethernet
• IEEE 802.3ab 1000Base-T Ethernet
• IEEE 802.3z 1000Base-X Ethernet
• IEEE 802.3x flow control capability
• IEEE 802.3ad Port trunk with LACP
• IEEE 802.1q VLAN
• IEEE 802.1d/1w STP/RSTP
• RoHS Compliance

Subscriber Interface

• 24 Gigabit Ethernet ports
• Auto-negotiation
• Auto-MDIX
• Backpressure flow control for half duplex
• 802.3x flow control for full duplex
• Port 21, 22, 23, 24 are TP/SFP Fiber auto sense
• Connector: 20 RJ-45 and 4 SFP/RJ-45 module

Performance

Switching capacity:

• 48 Gbps forwarding bandwidth for switch, non-blocking switch fabric
• Wire speed performance
• 8 K MAC addresses
• 500 KB on-chip frame buffer
• Jumbo frame support to 9600 bytes

VLAN

• 24, Port-base VLAN
• IEEE802.1q tag-base VLAN, 4094 max, up to 24 active VLANs
• In tag-base VLAN, supports egress/ingress packet filter
• Q-in-Q is an efficient method for enabling Subscriber Aggregation
• Provides multicast VLAN for DVB application

Qos

• Supports port based, Tag based, IPv4 ToS and DSCP
• Supports 802.1p QoS with four level priority queue
• Supports priority in a Q-in-Q tag
• Supports two scheduling, WRR and Strict

Bandwidth Control

• Supports bandwidth rating per port ingress and egress rate limit 1000Mbps with 1Mbps increment

LACP/Port Trunk

• Port trunking with 12 trunking groups
• Up to 12 ports for each group

Broadcast Storm

• Multicast/Broadcast/Unknown-Unicast Storm suppression

Port Mirroring

• Support 1: N RX port mirroring
• Supports port sniffer function with 3 modes:(TX Monitor Mode, RX Monitor Mode and TX-RX pair Monitor Mode)

Software Upgrade

• Supports firmware upgrade via web GUI

802.1x network access security

• Provides multi-host authentication based on port-base
• Provides mac based authentication with Radius server

SNMPv1, v2c Network Management

• MIB Files: MIB II(RFC1213), Bridge MIB(RFC1493), Interface Group MIB(RFC 2863)

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