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An interface description should be used to
identify important information such as a distant router, a circuit
number, or a specific network segment. A description of an interface
can help a network user remember specific information about the
interface, such as what network the interface services.

The description is meant solely as a
comment about the interface. Although the description appears in the
configuration files that exist in router memory, a description does
not affect the operation of the router. Descriptions are created by
following a standard format that applies to each interface. The
description may include the purpose and location of the interface,
other devices or locations connected to the interface, and circuit
identifiers. Descriptions allow support personnel to better understand
the scope of problems related to an interface and allow for faster
resolution of problems.
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