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MPLS
(MultiProtocol Label Switching)
A
traffic engineering p A standard from the IETF for including routing
information in the packets of an IP network. MPLS is used to ensure that
all packets in a particular flow take the same route over a backbone.
Deployed by many telcos and service providers, MPLS can deliver the
quality of service (QoS) required to support realtime voice and video as
well as service level agreements (SLAs) that guarantee bandwidth.
QoS (Quality Of Service)
A
defined level of performance in a data communications system. For example,
to ensure that realtime voice and video are delivered without annoying
blips, a guarantee of bandwidth is required. The plain old telephone
system (POTS) has delivered the highest quality of service for years,
because there is a dedicated channel between parties. However, when data
is broken into packets that travel through dozens of routers and can even
take different routes, QoS mechanisms must be built in to give one data
stream priority over another
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