Comtech H-Pro Heights Remote Gateway
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The H-Pro Remote Gateway is the high-performance platform capable of delivering unprecedented throughput to remote sites in a shared bandwidth environment. It supports multiple transmit throughput tiers up to 197.5 Mbps, managed via centralized licensing capability for ease of use, allowing users to standardize on a single remote platform, simplifying stocking and sparing.
Heights Dynamic Network Access (H-DNA)
H-DNA is an evolutionary dynamic network access technology designed for Heights return links that:
• Rapidly adapts to changing environments
• Delivers superior efficiency & Quality of Experience (QoE)
• Instantly assigns capacity based on network-wide demand
• Intelligently utilizes total network bandwidth at all times
H-DNA is designed to provide network wide fast switching on a sub-second interval making the process seamless and transparent to end users for real-time as well as non real-time applications. H-DNA leverages Comtech’s high performance VersaFEC®-2 waveforms with ACM, dynamic power control, high performance packet processing, network wide multi-tier QoS and IP optimization technology to enable unprecedented bandwidth efficiency and superior QoE. H-DNA fast switching and bandwidth allocation mechanism allows a Heights network to respond rapidly to changing traffic and link conditions while maintaining lowest latency and jitter for superior QoE and maximum bandwidth utilization efficiency.
Unparalleled Remote Horsepower
H-Pro incorporates unprecedented processing power enabling high throughput with multi-layer optimization. The increased EIRP and G/T performance of new HTS spacecraft allows for significantly higher throughput. However, this increased throughput cannot be met if the underlying packet processing is not able to keep up with the increased traffic flow. The quad-core processor in H-Pro can support the most demanding user applications in a HTS environment enabling service providers to take full advantage of the potential of these new HTS designs and grow service levels as end users’ demands grow.
Seamless Bridge Point-to-Multipoint (BPM) Mode or Routed Mode
In addition to routed mode, the Heights Networking Platform supports BPM mode for true layer 2 operation enabling seamless integration with service provider network. A Heights network operating in BPM mode can be viewed as an Ethernet switch supporting VLAN and MPLS while benefiting from bi-directional IP optimization, multi-tier QoS, ACM and dynamic bandwidth management. H-Pro includes extensive VLAN support including VLAN Access mode, trunk mode and QinQ. In BPM mode, H-Pro supports traffic classification and QoS by VLAN ID as well as MPLS Traffic Class Field (formerly referred to as EXP bits).
WAN Optimization and GPRS Tunneling Protocol (GTP) Mobile User Data Traffic Optimization
Heights Remote Gateways incorporate embedded WAN optimization for Internet Traffic and GTP traffic Optimization. GTP is used in mobile networks on 3G IuPS, 3G IuH and LTE S1 interfaces. Mobile subscriber traffic is encapsulated within an IP/UDP/GTP tunnel. Embedded GTP traffic optimization allows for optimization of the mobile subscriber traffic within the GTP tunnel, improving user Quality of Experience (QoE) through greater throughput and faster response time, and rendering the Mobile Network more efficient.
Heights WAN and GTP optimization provide TCP acceleration, based on Comtech’s patented TurboStream Performance Enhancement Protocol (PEP). TurboStream mitigates TCP performance issues across long delay links through intelligent implementations of scalable WAN TCP windows, and traffic multiplexing of LAN TCP sessions into persistent WAN TCP sessions. This process greatly reduces “time to first byte”, which means that the traffic starts flowing much faster than it would otherwise, and also enables traffic to ramp up to levels which would not be otherwise possible over long latency VSAT links.
Heights WAN and GTP optimization incorporate remote DNS caching enabling remote users’ web browsers to quickly resolve Host names to IP addresses locally, once again speeding up the “time to first byte”. Without local DNS caching, all DNS inquiries would have to traverse the VSAT link leading to longer delays before traffic starts actually flowing.
Heights WAN and GTP optimization also support image smoothing, thereby reducing the amount of data that needs to traverse the satellite link. Image smoothing also speeds up the time to download the webpages.
WAN and GTP optimization requires the FX Series at the hub. WAN optimization and GTP optimization is fully integrated with network wide multi-tier QoS, ACM and IP optimization for maximum performance and efficiency.
Global IP Roaming
An embedded mobility controller in H-Pro enables a satellite terminal on-board a mobile platform to seamlessly transition between satellite beams or hub coverage with minimal service interruption. The embedded mobility controller interfaces with the Antenna Control Unit (ACU), maintains satellite footprint maps and initiates beam switching and handoff as the vessel moves through the satellite footprint. It offers a common management interface for the mobility server and the ACU by providing a set of commands, information, interfaces and status queries.
Dynamic MESH
Heights supports dynamic remote-to-remote connections (MESH) in router mode with Dynamic SCPC (dSCPC), using additional receivers at the remote. Dynamic MESH requires “loop-back” operation where each site in a MESH connection is able to receive from all other sites in that MESH connection. Dynamic MESH eliminates double hop latency as remote-to-remote packets don’t have to transit through the hub. It also requires 50% less bandwidth as a remote-to-remote double hop link would consume almost twice the bandwidth.
Benefits
• High throughput capabilities support increasing end user traffic demands
• Multiple throughput tiers managed by software licensing simplify stocking and sparing
• Future-proof design allows remote gateways to take advantage of significant throughput increase potential of new HTS designs
• High performance waveforms combined with multi-layer optimization delivers the highest user IP bits per Hz, as well as highest user IP bits per Amplifier (BUC) Watt, minimizing Total Cost of Ownership (TCO) over network life
• Seamless Bridge Point-to-Multipoint (BPM) mode provides seamless integration with service provider network
• Extensive VLAN support enabling traffic separation for multi-user environments
• Embedded mobility controller enables global roaming
