Best effort Ethernet Services is an over-subscription service model that functions without rate control. Ideal for broadband Internet access within a metro area, Best Effort Ethernet Service enables service providers/carriers to offer an economy-class of service that maximizes revenue potential of a fixed amount of bandwidth.
In the Best Effort service model customers share common bandwidth and are given no quality of service (QoS) or throughput rate guarantees. Thus best effort applications function without rate control services and provide customers with throughput relative to available bandwidth only.
If customers require that their traffic be separated from common network traffic (for security purposes), this can be achieved by VLAN tagging (IEEE 802.1q) or Transparent VLANs (see the sections above). Traffic in best effort applications may also be prioritized via IEEE 802.1p tags.
Protection in this application is provided by both standard SONET layer switching within the WAN and Rapid Spanning Tree protocol (IEEE 802.1w) in the Ethernet environment.
Best effort services are ideal for providing Internet access. This application enables service providers to offer economy-class service facilitated by over-subscribing bandwidth shared by numerous customers. Thus best effort services enable service providers/carriers to maximize the revenue potential of a fixed amount of bandwidth.
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