HP HP-UX SNAplus2, Руководство администратора

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Chapter 2 91
Introduction to SNAplus2
SNAplus2 Resources
NOTE
Some of the resources listed here do not appear in the Motif
administration program, or are presented differently. These differences
are indicated in the following sections where they apply.
Connectivity Resources
Connectivity to remote systems is supported by the following resources:
• DLCs (see “DLCs”).
If you use the Motif administration program to configure a port, the
corresponding DLC definition is created automatically. For
command-line administration, the DLC is configured separately.
• Ports (see “Ports”).
• Link stations (see “Link Stations”).
• Connection networks (see “Connection Networks”)
If you use the Motif administration program, you can define a
connection network as part of port configuration. For command-line
administration, a connection network is configured separately.
DLCs
A DLC is the component responsible for communication over a physical
link (or multiple links) using a specific data link protocol, such as SDLC
or token ring. Each DLC can manage one or more ports, as described in
“Ports”.
SNAplus2 provides support for the following data link protocols:
• Synchronous data link control (SDLC)
• X.25 QLLC (qualified logical link control), for which the X.25
communications software may be provided by your SNAplus2
supplier or by another supplier
• Token ring
• Ethernet (standard or IEEE 802.3)
• FDDI (Fiber Distributed Data Interface)