R0106-HP MSR Router Series Interface Command Reference(V7)

Field Description

Cause

Cause for the physical link state of an interface to be DOWN:

• Administratively—The port is manually shut down with the shutdown

command. To restore the physical state of the interface, use the undo

shutdown command.

• DOWN ( Link-Aggregation interface down )—When an aggregate

interface is shut down, the physical state of all member ports of the

aggregate interface becomes DOWN, and the Cause field displays

DOWN ( Link-Aggregation interface down ).

• DOWN (Loopback detection down)—The port is shut down because

the loopback detection module has detected loops.

• DOWN ( Monitor-Link uplink down )—The port is shut down because

the monitor link module has detected that the uplink is down.

• Not connected—No physical connection exists (possibly because the

network cable is disconnected or faulty).

• STP DOWN—The port is shut down by the STP BPDU guard function.

• Port Security Disabled—The port is shut down by the intrusion

detection mechanism because the port receives illegal packets.

• Standby—The interface is in the Standby state.

Related commands

reset counters interface

display packet-drop

Use display packet-drop to display information about packets dropped on an interface or multiple

interfaces.

Syntax

display packet-drop { interface [ interface-type [ interface-number ] ] | summary }

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type: Specifies an interface type. If you do not specify an interface type, this command displays

information about dropped packets on all the interfaces on the device.

interface-number: Specifies an interface number. If you specify an interface type only, this command

displays information about dropped packets on the specified type of interfaces.

summary: Displays the summary of dropped packets on all interfaces.

Examples

# Display information about dropped packets on GigabitEthernet 2/0/0.

<Sysname> display packet-drop interface gigabitethernet 2/0/0

GigabitEthernet2/0/0: