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27 INTERFACE COMMANDS
These commands are used to display or set communication parameters for
an Ethernet port, aggregated link, or VLAN; or perform cable diagnostics
on the specified interface.
Table 107: Interface Commands
Command Function Mode
Interface Configuration
interface Configures an interface type and enters interface
configuration mode
GC
alias Configures an alias name for the interface IC
capabilities Advertises the capabilities of a given interface for use
in autonegotiation
IC
description Adds a description to an interface configuration IC
discard Discards CDP or PVST packets IC
flowcontrol Enables flow control on a given interface IC
media-type Force port type selected for combination ports IC
negotiation Enables autonegotiation of a given interface IC
shutdown Disables an interface IC
speed-duplex Configures the speed and duplex operation of a given
interface when autonegotiation is disabled
IC
clear counters Clears statistics on an interface PE
show discard Displays if CDP and PVST packets are being discarded PE
show interfaces brief Displays a summary of key information, including
operational status, native VLAN ID, default priority,
speed/duplex mode, and port type
PE
show interfaces counters Displays statistics for the specified interfaces NE, PE
show interfaces status Displays status for the specified interface NE, PE
show interfaces
switchport
Displays the administrative and operational status of
an interface
NE, PE
Transceiver Threshold Configuration
transceiver-threshold-
auto
Uses default threshold settings obtained from the
transceiver to determine when an alarm or trap
message should be sent
IC
transceiver-monitor Sends a trap when any of the transceiver’s operational
values fall outside specified thresholds
IC
transceiver-threshold
current
Sets thresholds for transceiver current which can be
used to trigger an alarm or warning message
IC
transceiver-threshold
rx-power
Sets thresholds for the transceiver power level of the
received signal which can be used to trigger an alarm
or warning message
IC