This paper summarizes that pocessing network events into root-cause alarms is aimed at providing network operations staff with actionable indications of apparent network problems. Once alerted to a network problem, network operations staff is typically tasked with trouble verification and isolation. An accurate representation of device and network configurations is key to facilitate the trouble verification and isolation process. In particular, for service provider's Carrier Ethernet networks, a clear view of the various ways that customer traffic is mapped to different network transport technologies is fundamental toward isolating a network issue. Cisco® Active Network Abstraction (ANA) provides the in-depth representation of device configurations for network elements deployed in Carrier Ethernet networks.
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