DCP Series X.25 Packet Switched Communications Software (PSCS ...

Introduction
• Call switching, allowing a network operator to reroute a DTE call to another DTE.
• Hunt groups, which provide a method of configuring a single address for a group
of DTEs, enabling calls to be sent to the least active DTE.
• X.75 interface to private networks, which enables internetworking with private
networks.
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1.1.2. ILM-20 Support
1–4
This feature enables the X.25 PSCS packet layer to interface with a link access
procedure (LAPB) implementation executing in an ILM-20, offering the following
benefits:
• A greater number of connections. The 4 x 1 ILM-20 replaces single connection line
modules.
• Lower cost per connection.
• Increased line speeds. The ILM-20 supports an aggregate speed of up to 2 million
bits-per-second (mbps). Top speeds on other line modules cannot exceed 64,000
bps.
• Enhanced DCP performance. Achieved because the LAPB code is executing in the
line module, not the DCP I/O processor.
• Implementation of Modulo 128. Enables frame sequence numbering between 0 and
127.
This feature has been certified by European NET2 standards, and can be used on any
network that recognizes the European NET2 certification standard.
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7831 5470–200