Sigma Networks' hubbed SONET services powered by CIENA CoreDirector

Sigma Networks has deployed CIENA Corp.'s intelligent optical core switching solutions to power its hubbed MAINLink SONET services, designed to provide carrier-class SONET performance and availability.

CIENA's Multiwave CoreDirector and Multiwave CoreDirector CI intelligent optical core switches enable Sigma Networks to deliver switched, channelized SONET services in a metro network. Its fractional SONET capabilities allow Sigma Networks' carrier and service provider customers to use a single aggregated port connection to reach multiple points-of-presence in major cities. CIENA's CoreDirector enables switching at the STS-1 level for the distribution of DS3s, OC-3s, OC-12s, and OC-48s throughout the metro.

Sigma Networks hubbed SONET Services are designed to help customers reduce costs via economies of scale. For example, rather than ordering four separate OC-3 metro point-to-point connections, a customer could reduce its costs per year with the hubbed SONET services by provisioning one aggregated OC-12 port with channelized, switched delivery to four different OC-3s at four different end locations, claims the company.

CIENA Corp.'s (Linthicum, MD) LightWorks architecture enables optical services designed to change the economics of service-provider networks by simplifying the network and reducing operational costs. Additional information about CIENA can be found at www.ciena.com.

Sigma Networks' (San Jose) all-optical Metro Area Interconnection Network (MAIN) offers a line of metro interconnections, including SONET, Gigabit Ethernet, and wavelength services designed to accelerate carrier and service provider network footprint expansion and ROI. For more information, visit the company's Web site at www.sigmanetworks.com.