Ethernet over Self-Healing Network Services (SHNS)

Keep Your Business Up and Running with SHNS

Who can blame you for wanting to avoid downtime at all costs? Fortunately, CenturyLink offers a solution that allows you to minimize this pesky part of doing business without breaking the bank. Ethernet over Self-Healing Network Services (SHNS) provides business continuation, disaster recovery, and survivability through a failure-resistant telecommunications network. The service is designed to automatically detect service degradation or a single failure anywhere within the system. It then reconfigures itself around the point of failure to ensure a near-continuous flow of information between those locations that are within the survivable network.

SHNS Features

• Broad applications for networks of all sizes
• Instantaneous rerouting of transmissions within 50 milliseconds
• 99.99 percent availability with a bit error rate of 10-9 or one error in one billion bits
• Range of system bandwidth capacities (155.52Mbps, 622.08Mbps, 2.488Gbps and 9.95Gbps data speeds)
• Connection to multiple CenturyLink-provided services, including DS-1, DS-3, Digital Switched Service, and Switched Access Service
• Performance monitoring with detailed performance information and real-time status verifications
• Drop-and-insert multiplexing enables pre-designation of the number of individual channels serving each location to meet usage needs
• Constant network monitoring includes standard 24-hour alarm surveillance and/or performance monitoring

SHNS Optional Features

• Central office connecting channel provides for connections to another SHNS ring or from the SHNS ring to any central-office-based service that interfaces at the same bandwidth
• Software reconfiguration capability allows reconfiguration of existing channels within the SHNS on a daily basis to suit changing operational demands
• SONET multiplexing allows high-bandwidth circuits to be multiplexed into lower bandwidth circuits inside a SONET system

SHNS Call Routing Benefits

• Eliminates costly downtime
• Provides nearly instantaneous switch-to-protection path—not to exceed 50 milliseconds
• Provides security and reliability
• Includes out of service credits
• Offers customized solutions designed to specific requirements and precise network needs
• Provides scalability and flexibility
• Supports new technology with minimal reengineering and cost

How SHNS Works

The SHNS ring configuration makes it possible for your network to remain functional in the event of a fiber cut. The service allows multiple circuit types, such as DS-1, DS-3, STS-1, OC-3, OC-3c (concatenated), OC-12, OC-12c, OC-48, OC-48c, 10Mb Ethernet, 100Mb Ethernet and 1Gigabit Ethernet, to ride the SHNS separately or in combination, meeting your unique volume-transport needs. SONET technology ensures your network has the highest level of survivability available today.