OAM Overview
Except on the first page, right running head:
Heading1 or Heading1NewPage text (automatic)
397
Alcatel-Lucent
Beta Beta
OmniAccess 5740 Unified Services Gateway CLI Configuration Guide
OAM OVERVIEW
OAM (Operations, Administration, and Maintenance) describes the monitoring of
network operation by network operators.
OAM is generally utilized for detecting and localizing network faults, examining
and reporting network status, monitoring network performance, and provisioning
and configuring user parameters.
OAM is a set of functions that enable detection of network faults and
measurement of network performance, as well as distribution of fault-related
information. OAM may trigger control plane or management plane mechanisms,
for example, by activating re-routing or by raising alarms, but such functions are
not part of the OAM itself. OAM functionality ensures that network operators
comply with QoS guarantees, detect anomalies before they escalate, and isolate
and bypass network defects. As a result, the operators can offer binding service-
level agreements. The operation of networks without OAM demands many more
resources for continuous manual intervention to detect failures, expensive truck
rolls to localize faults, and human performance measurement. These networks
have lower availability and longer down times, and are more expensive to
maintain.
As Ethernet evolves from enterprise-level LANs to carrier-class networks and
services, it requires automated end-to-end management and monitoring by
service providers. As a result, Ethernet is the most recent communications
protocol to adopt OAM capabilities such as connectivity verification, fault
detection, performance monitoring and alarm indication. Ethernet OAM
functionality allows network operators to measure quality of service (QoS)
attributes such as Availability, Frame Delay, Frame Delay Variation ("Jitter") and
Frame Loss. Such measurements enable identification of problems before they
escalate so that users are not impacted by network defects. Furthermore, these
capabilities allow the operators to offer binding service level agreements (SLAs)
and generate new revenues from rate- and performance-guaranteed service
packages that are tailored to the specific needs of their customers.
Ethernet OAM helps the service provider to deliver end-to-end service assurance
across the IP/MPLS core, the Ethernet metro, and to the customer's premises.
Ethernet OAM helps to achieve increased availability and reduced mean time to
repair (MTTR), thereby directly impacting the competitiveness of the service
provider.
To Next Page
Loading...
