02/05/2010 • IT Security / Cyber Security • Security, Video Security, Video Surveillance

GARRETTCOM EUROPE ANNOUNCES ENHANCED IGMP SUPPORT FOR STANDARD MANAGED ETHERNET SWITCHES

GarrettCom Europe announces that its standard layer 2 Ethernet switches are now available with IGMP software, dramatically reducing the cost of Ethernet traffic management in data intensive video applications employing multiple cameras. The IGMP L2 option allows users to employ standard Ethernet switches instead of vastly more costly layer 3 switches and routers across much of the network, often requiring only a single layer 3 router to be used as a master.

Applications such as networked security, building surveillance and traffic management often make use of multiple video or CCTV cameras, transmitting data at rates as high as 5Mbps. This multicast traffic can quickly exceed the bandwidth of a standard Ethernet network, but the IGMP protocol provides a means to manage this traffic. IGMP (Internet Group Management Protocol) is a standard defined in RFC1112 and RFC2236, and specifies how a host can register a router to receive specific multicast traffic. Without IGMP support, multicast traffic is transmitted to all of the ports in each network switch unnecessary traffic which floods the interfaces and quickly bogs down the entire network.

A further benefit of IGMP is that it provides a means to combine the video-over-Ethernet traffic stream from cameras with other typical LAN data traffic, enabling a single, common LAN system to be used for both types of traffic. But the penalty traditionally has been a requirement for costly layer 3 routers and switches, but with GarrettComs new development the companys standard layer 2 managed Ethernet switches now support IGMP.

Instead of broadcasting multicast traffic across all its ports, a GarrettCom layer 2 Ethernet switch with IGMP support provides tighter control of multicast traffic. A layer 3 IGMP master is still required somewhere in the network, but the need for multiple layer 3 products is eliminated and costs are dramatically reduced.

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GarrettCom Europe

Haslar Rd
Gosport, PO12 2AU

Phone: +44 (0) 870 3825 777
Fax: +44 870 3825 098