美国科动控制公司—工业以太网冗余

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　　Contemporary Controls has created a guide on how to enhance the performance of your network through the managed series switch. There are 9 highlighted features, each of which effect the speed of your network.

The Complete Tutorial covers 9 features:

	IGMP Snooping
	Rate Limiting
	Virtual Local Area Network (VLANs)
	Quality of Service (QoS)
	Simple Network Management Protocol (SNMP)
	Port Security
	Port Mirroring
	RapidRing Redundancy
	Trunking Redundancy

NOTES:
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IGMP Snooping : See the Tutorial

	Improve Ethernet/IP traffic on your network
	Automatically Controls multicast traffic
	Minimizes unneeded multicast traffic

Rate Limiting: See the Tutorial

	Set a maximum bandwidth for each port
	Prevent unnecessary communication traffic from overwhelming devices

Virtual Local Area Network (VLAN): See the Tutorial

	Isolate traffic between groups of ports
	Control access to the various VLAN groups
	Allow devices that need to communicate to each other the maximum bandwith

Quality of Service (QoS): See the Tutorial

	Allow "high priority" messages quick throughput
	Define message importance

Simple Network Management Protocol (SNMP): See the Tutorial

	Monitor switch port parameters
	Allows easy access to switch information for HMI, SCADA and other applications

Port Security : See the Tutorial

Control access to end devices

Port Mirroring : See the Tutorial

	Provides message troubleshooting access
	Allows messages to be monitored for message content

RapidRing^TM 快速环网冗余:


	允许由光纤及电缆线组成混合介质的环网
	环网中任意网段中断后，网络将自动恢复，恢复时间<300ms (使用50个交换机进行测试).
	出错继电器、LED指示灯以及SNMP帮您快速识别中断的连接
	支持双环冗余结构

更多的内容请查看 Flash动态演示 及 技术白皮书。

Trunking技术实现主干冗余::


	任何Trunk方式连接的网段，如有连接中断，网络将自动在10ms内恢复
	出错继电器、LED指示灯以及SNMP帮您快速识别中断的连接
	Trunking将在交换机之间提供更大的传输带宽

更多的内容请查看 Flash动态演示 及 技术白皮书。

　　所有科动公司管理型交换机，如EISX_M、EICP_M、EISB_M均提供RapidRing^TM和Trunking功能，组成冗余网络，以及以上所列的高级管理功能。单个交换机所提供的接口数为8、16、24，单模/多模、SC或ST光纤接口可选。