The article first presents a broad overview of the fault management mechanisms involved in
deploying a survivable optical mesh network which employs optical crossconnects. We …

In a wavelength-division-muliplexing (WDM) optical network, the failure of network elements
(eg, fiber links and cross connects) may cause the failure of several optical channels …

This paper presents a comprehensive survey for the pre-configured cycle (p-cycle)
protection method which is a relatively new scheme for network survivability with many …

We analyze IS-IS routing updates from sprint's IP network to characterize failures that affect
IP connectivity. Failures are first classified based on probable causes such as maintenance …

As the Internet evolves into a ubiquitous communication infrastructure and supports
increasingly important services, its dependability in the presence of various failures …

Large IP networks usually combine protection and restoration mechanisms at various layers
of the protocol stack to minimize service disruption in the event of failures. Sprint has chosen …

Optical metro networks evolution driven by 5G requirements face enormous challenges.
Network functions virtualized in the data centers spread to the metro nodes, IP, and optical …

Transport networks evolved from DCS (Digital Cross-connect Systems)-based mesh
architectures, to SONET/SDH (Synchronous Optical Networking/Synchronous Digital …

Optical networks and the related technologies, network management software and services
have undergone remarkable developments, and such networks are now the ultra-high …

Filterless Optical Networks (FONs)(ie, optical networks where switching nodes are solely
based on passive splitters and combiners) enjoy features that are highly appreciated by …