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Segment Routing: Impact on Software Defined Networks

Segment routing (SR) is a concept that’s been working its way through the IETF standards process but is finally becoming ready for real world deployment. It’s a network technology that provides enhanced packet forwarding behavior while minimizing the need for maintaining awareness of mass volumes of network state. SR satisfies essential requirements for application-enabled routing in software defined networks, including the ability to provide strict network performance guarantees, efficient use of network resources and very high scalability for application-based transactions. Segment Routing relies on a small number of extensions to IS-IS and OSPF and can operate with an MPLS or an IPv6 data plane and integrates with the rich multi-service capabilities of MPLS such as L3VPN, VPWS, VPLS, E-VPN, etc.

With Read More »

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PONC 2012: IP and Optical Convergence with “iOverlay”

The scale of today’s transport networks and content provider data centers are directly driven by the explosive nature of packet traffic growth. As a result, the demand for 100G and beyond is a key topic in the industry.  Cisco’s recent 100G announcement and its industry leading performance for Ultra Long Haul continues to receive significant attention within the service provider community as they consider options for their next generation transport networks.

However, the solution is not only about faster transmission speeds. Service providers must also increase efficiency within their network. Until now, traditional network architectures have inefficiently maintained separate Read More »

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