In New Delhi: RAD Data Communications has released a cost-effective SHDSL.bis modem with integrated router capabilities The company claims that it is the first in the market to incorporate a separate E1 uplink.
RADs new ASMi-54L with integrated router can operate as a central office device or as customer premises equipment (CPE) according to user configuration. Its feature set is specifically designed for incumbent and alternative carriers and providers of business services to enterprise customers.
The built-in router incorporates various tools for secure and efficient Layer-3 IP connectivity over packet switched networks. These include Network Address Translation (NAT) to map a private single host IP address on the LAN to a single public IP address on the WAN, static Network Address Port Translation (NAPT) to map multiple LAN IP addresses to a single public
Apart from routing capabilities over 2/4-wire lines at data rates of up to 5.7/11.4 Mbps (2.6 )kilometers over 26 gage at 5.7 Mbps), the modem is unique in offering the option to provide point-to-point Ethernet and E1 service extension at rates of up to 22.8 Mbps using Ethernet in the First Mile (EFM) bonding. EFM bonding on the Ethernet interface ensures that a failure or addition of a link does not drop the traffic being transmitted over the other wires in the group.
The capacity of the group does not decrease when a new link is added at a lower rate.
The ASMi-54L with integrated router also performs bridging functions by implementing IEEE 802.1q standards, which provide VLAN-tagging with four levels of prioritization. This enables carriers to offer differentiated Ethernet services. VLAN tagging can also be employed for separating traffic, ensuring transparency of the customer traffic and bolstering security of management traffic. The user can activate or deactivate the priority mechanism, and each priority (VLAN priority, DSCP or per port) can be mapped to one of four priority queues. In addition, 802.1p, DSCP, and per port priority schemes allow users to define different QoS levels according to application requirements.
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