Name
interface — global
Synopsis
interfaceinterface
.subinterface
[{point-to-point | multipoint}]
Configures
Allows configuration of a given interface
Default
None
Description
This command enters the interface configuration mode for the given
interface
and
subinterface
. The interface most commonly
consists of an interface type followed by the number of the
particular interface (for example, ethernet0
). A
space is allowed (and commonly used) between the interface type and
the number. Table 15-9 shows the most common
interface types. On more complex routers, the interface number can be
specified in a number of different ways: as a
slot/port
combination, as a
slot/adapter/port
combination, or as a
slot/port:channel-group
combination. The
appropriate form depends on the hardware you’re dealing with.
The interface specification can include a subinterface number;
subinterfaces are most common when using protocols like Frame Relay
or ATM, which can package a number of communications channels on a
single physical connection. The point-to-point
keyword indicates that a subinterface is logically connected to a
single remote node; multipoint
indicates that it
is logically connected to a number of remote nodes.
multipoint
and point-to-point
are most commonly used on
Frame Relay and ATM interfaces.
Table 16-1. Common interface types
Type |
Description |
---|---|
|
An asynchronous interface (a standard terminal or modem line) |
|
ATM |
|
ISDN BRI (2 B channels) |
|
Dial-on-demand interface ... |
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