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Table 5 Command output
Field
Brief information on interfaces in
route mode:
Link: ADM - administratively down;
Stby - standby
Protocol: (s) – spoofing
Interface
Link
Protocol
Primary IP
Description
Brief information on interfaces in
bridge mode:
Speed: (a) - auto
Duplex: (a)/A - auto; H - half; F –
full
Type: A - access; T - trunk; H –
hybrid
Speed
Duplex
Description
Brief information about Layer 3 interfaces.
•
ADM—The interface has been shut down by the network
administrator. To recover its physical layer state, run the undo
shutdown command.
•
Stby—The interface is a standby interface.
If the data link layer protocol of an interface is up, but its link is an
on-demand link or not present at all, this field displays UP (s), where s
represents the spoofing flag. This attribute is typical of interface Null 0
and loopback interfaces.
Interface name.
Physical link state of the interface:
•
UP—The link is up.
•
DOWN—The link is physically down.
•
ADM—The link has been administratively shut down. To recover
its physical state, run the undo shutdown command.
•
Stby—The interface is a standby interface.
Link layer protocol state of the interface:
•
UP.
•
DOWN.
•
UP(s)—The link of the interface is an on-demand link or not
present at all.
Primary IP address of the interface. A hyphen (-) indicates that the
interface is not configured with an IP address.
Partial or complete interface description configured by using the
description command:
•
If you do not specify the description keyword for the display
interface brief command, the Description field displays only the
first 27 characters of the interface description.
•
If you specify the description keyword for the display interface
brief command, the field displays the complete interface
description.
Brief information about Layer 2 interfaces.
If the speed of an interface is automatically negotiated, its speed
attribute includes the autonegotiation flag, indicated by the letter a in
parentheses.
If the duplex mode of an interface is automatically negotiated, its
duplex mode attribute includes the following options:
•
(a)/A—Autonegotiation.
•
H—Half negotiation.
•
F—Full negotiation.
Link type options for Ethernet interfaces.
Interface rate, in bps.
Duplex mode of the interface:
•
A—Autonegotiation.
•
F—Full duplex.
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