15 January 2004 Sao Paulo, Brazil Lightwave -- Brazilian network operator Embratel has acquired the Tellabs 6300 managed SDH transport system, which supports Ethernet Private Networks and Ethernet Private Lines and will allow the carrier to provide differentiated voice and data services to its corporate customers. Embratel contends that the addition of Tellabs' third-generation SDH with Layer 2 switching capabilities will put it one step ahead of the competition with the most modern infrastructure in the country.
Installation of Embratel's Ethernet-over-SDH solutions will initially comprise the Tellabs 6350 switch node, which has become Tellabs fastest seller since its launch. It is the world's most dense digital cross-connect with 4/4/1 connectivity, say Tellabs representatives. The second phase will see the deployment of the Tellabs 6345 switch node. The Tellabs' solutions will serve Embratel networks in Rio de Janeiro, Porto Alegre, Curitiba, Florianopolis, and Sao Paulo, as well as Sao Jose dos Campos, Campinas and Santos, Belo Horizonte, and Brasilia.
"As Brazil's leading operator, Embratel values advanced technology that guarantees the operation of our networks with reliability and efficiency," reports Rafael Alvarez, LAC vice president and general manager. "The Tellabs 6300 series does just that, allowing us to support new profitable Ethernet services, while making greater operational and capital expenditure savings."
The Tellabs 6300 Ethernet solution uses MPLS to provide guaranteed Quality of Service (QoS). Instead of relying on simple Ethernet prioritization mechanisms, the Tellabs
6300 series manages and guarantees the bandwidth delivery within a multipoint network for each data flow.
Due to the Tellabs 6300 series advanced Layer 2 switching functionality, wide area Ethernet networks can be constructed with the same flexibility and scalability as smaller local area networks, say Tellabs representatives. "Network operators need to introduce new high-speed voice and data services to their customers today, and our solutions enable them to do this cost-effectively and efficiently," adds Anders Gustafsson, president of Tellabs International. "Embratel will now be able to offer differentiated and highly flexible services such as Ethernet Private Networks or Ethernet Private Lines for applications, including Internet access, corporate intranets, voice over IP (VoIP), and video."
Using MPLS, Embratel can offer flexible Service Level Agreements (SLAs) to corporate customers, separating the traffic of each. This flexibility results in improved scalability and security compared to virtual LAN network engines. It also provides a better usage of the network bandwidth than with TDM leased lines. With the transport network contributing Layer 2 switching, the number of physical interfaces between the transport network and its data customers is reduced, lowering the network's overall costs.
By combining MPLS, QoS, and a new protection scheme--Link Capacity Adjustment Scheme (LCAS)--Embratel claims it can resize its capacity of links in the transport network at any time, with no impact on the traffic. Ethernet service bandwidth can be scaled instantly, according to needs. Further, LCAS offers more resiliency against network failures, doubling the efficiency by activating the redundant bandwidth reserved by traditional SDH protection.