Allied Telesyn AT RG613LH Residential Gateway

Allied Telesyn AT RG613LH Residential Gateway ... powerful Layer 3 capabilities as well as enhances VoIP features set.

The RG600 series supports port-based, up to 16 IEEE 802.1Q tagged VLAN operation across its 4 x 10/100Mbps switch ports. Hence, it offers a potent combination of wirespeed Layer 2 switching between VLANs as well as high performance Layer 3 routing between VLANs in one highly cost effective unit.

The RG600 series has an integral Stateful Inspection Firewall with NAT and Denial of Service intrusion detection and blocking for protecting customer networks. Each VLAN can be configured to be external, internal or DMZ. With the Virtual Server features, a web or e-mail server can sit beyond the NAT and appear like being on the public interface. The RG600 series NAT supports the most popular protocols and applications including NetMeeting (H.323 and SIP), IPSec and PPPtp.

The RG600 series offers the possibility to limit the egress and ingress bandwidth on each port and queue with a granularity of 32kbps. This feature allows the Service Operator to offer differentiated services to each customer and protect its network from malicious packet flooding.

The RG600 series offers a choice of Voice over IP signaling methods, namely H.323, SIP and optional MGCP including NCS 1.0 profile. H.323 provides compatibility with existing H.323 services (e.g. Microsoft NetMeeting) while SIP and MGCP are newer protocols, optimized for operation over IP networks. This multiple protocol support provides maximum flexibility for service providers, allowing them to provide an IP telephony service based on cost and feature set, rather than being limited by the protocol used.

Similarly, a choice of different voice and data encoding algorithms is also available comprising G.711 A-law, µ-law (64kbps), G.729 (8kbps), T.38 and optional G.723.1 (6.3/5.3kbps), so that maximum VoIP interworking is assured with carrier class IP Gateways and network switches. Quality of Service is provided through mechanisms such as the Type of Service (ToS) field in the IP packet, priority tagging of voice traffic using IEEE 802.1p, as well as silence suppression and local generation of comfort noise - the result is excellent voice quality. The RG600 series allows the connecting of two standard analogue phones, modems or faxes.

Video Streaming offers unique features to optimize the delivery of Video contents to customers, namely VLAN, IGMP snooping and proxying. The RG600 series supports full IGMP snooping capability (v1/v2) and individual LAN ports can receive different multicast transmissions e.g. different movies or TV channels. The RG600 series "snoops" IGMP packets in-transit, so it knows which port to forward the particular multicast data to. This results in high-quality, high bandwidth video streaming without affecting Internet surfing or IP telephony on adjacent ports. The RG600 series supports IGMP proxying to allow forwarding of multicast packets at Layer 3 with or without NAT.

The RG600 series is designed for high volume deployment, this is reflected in the Zero Touch Configurator (ZTC), whereby no user intervention is required when installing a unit. ZTC is a distributed configuration system based on the industry standard Lightweight Directory Access Protocol - LDAP. ZTC provides intelligent and automatic configuration of remote RG units. It analyses incoming status information from each RG unit and dynamically creates the appropriate configuration file or operating system download as required, it then selects the appropriate download mechanism (e.g. TFTP, HTTP, HTTPS etc.) to complete the process. The ZTC client in the RG initiates the download process on power up, or on expiry of its DHCP lease timer. ZTC provides secure authentication of client devices, resilience through distributed server operation and in-built scalability for very large networks.