Bandwidth Assignments; Inroute Bandwidth Pooling - Hughes HX System System Overview

Bandwidth assignments

Inroute bandwidth
pooling
Chapter 5 • Bandwidth management
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1037852-0001 Revision A
The HX System has the flexibility to provide two types of
bandwidth assignments:
• Nailed-up bandwidth - ensures that the bandwidth is
guaranteed and has low latency on start-up, but inefficient use
of the bandwidth may be experienced if the satellite router is
idle for long periods of time.
• Activity-based bandwidth - provides a more efficient use of
the overall bandwidth, but causes delay at the initial start-up
of traffic.
The system can operate in a mixed mode, for example, it can
provide some sites nailed-up bandwidth assignment while
providing other sites with bandwidth based on activity. In both
cases, there is the capability to dynamically adjust the assigned
bandwidth based on real-time traffic requirements.
To leverage the fact that all satellite routers within the HX System
are fully frequency-agile across all inbound channels, the HX
System bundles the inbound channels into a single large pool of
resources. At any point, a satellite router may be instructed to
access virtually any inbound channel. The channel accessed is
determined by the HX gateway dynamic network control cluster
(DNCC), which considers multiple factors, including the QoS
commitments of each satellite router.