Network And Bandwidth Management; Dynamic Scpc (Dscpc) - Comtech EF Data Vipersat CDD-562L User Manual

• Single Hop On Demand (SHOD) functions
• 10/100BaseT Ethernet LAN/WAN Interface
• Static IP Routing for Unicast or Multicast
• Header Decompression
• Payload Decompression
• 3xDES Decryption

Network and Bandwidth Management

A Vipersat-powered network solution integrates this advanced demodulator/
router with the powerful network management tool, the Vipersat Management
System (VMS). The VMS provides for traditional monitor and control of the
CDM-570/570L modems and the CDD-56X demodulators, but more than just
an M&C package, the VMS allows these units to share bandwidth, and when
needed, switch automatically to a dedicated SCPC channel.

Dynamic SCPC (dSCPC)

The VMS provides for dynamic bandwidth allocation while in SCPC mode,
automatically altering the bandwidth based on traffic conditions. This effec-
tively enables the network to better handle connection-oriented applications and
reduce network congestion, jitter, and latency.
In a typical Vipersat application used in conjunction with CDM-570/570L
modems, the CDD-56X demodulators are drawn from a pool for assignment to a
connection-oriented link.
Traffic inbounds from remotes can be switched manually or automatically,
application or load triggered, or scheduled, from shared STDMA (burst) mode
to a dedicated SCPC connection. The VMS automatically assigns a free demod-
ulator at the Hub to a desired remote inbound, completely eliminating manual
intervention. At remote sites, the CDD-56X simplifies Single Hop On Demand
(SHOD) applications with direct remote-to-remote connections that do away
with double-hops. Once the session is completed, the remote is automatically
reverted back to its home state.
In addition, the CDD-56X simplifies Single Hop On Demand (SHOD) applica-
tions with direct remote-to-remote connections that do away with double-hops.
The result is an economical and flexible network with bandwidth shared and
directed where it is needed for any mix of IP voice, video, and data traffic.
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