best-effort service


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best-effort service

A communications service that makes no guarantees regarding the speed with which data will be transmitted to the recipient or that the data will even be delivered entirely.
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123) Potential classes of service may offer throughput, loss, delay, or jitter that is relatively better than the throughput, loss, delay, or jitter provided by best-effort service during times of congestion (124) or may provide a performance that is more constant and predictable than best-effort service.
The definition of a best-effort service with minimum QoS levels is also part of the network neutrality debate (CAVE & CROCIONI, 2011).
The service, named Group-Ether, is a best-effort service offering low-cost nationwide network coverage by taking advantage of broadband access lines that NTT Com's sister companies NTT East and NTT West provide with certain versions of their FLET'S-branded Internet access services.
In order to preserve the reliability and QoS for business applications, enterprises should enable the WLAN system's QoS features for critical voice, data and video applications on the corporate ESSID, while providing best-effort service for the guest ESSID.
Is best-effort service good enough to build a robust global data network?
Using service level agreements (SLA) carriers may offer symmetrical high-speed data, dedicated wavelengths and guaranteed bandwidth floors to premium customers, while offering best-effort service levels to other less demanding customers at lower tariffs.
UBR connections receive best-effort service only and lack QoS guarantees that control transmission characteristics like cell loss and delay.
Telstra, however, does make an 8Mb/s available, but this is not a guaranteed speed, only a best-effort service.
Given the nature of best-effort service, traffic shaping is imperative to ensure that bursty LAN (local area network) traffic does not exceed the peak cell rate of 10 Mbps that is part of the SLA between Bezeq and Elite.
QoS can be achieved by explicitly reserving bandwidth on the network or by providing preferential service to selected network traffic while providing best-effort service to all other traffic.
Tunneling over the Internet is one option, but this today means best-effort service only.
This requires moving from best-effort service creation and verification to a full-service management model, where cost-effective, protected, edge-to-edge services can support bandwidth provisioning and varied quality of service guarantees negotiated with each customer.