R3303-HP HSR6800 Routers Interface Configuration Guide

• When a crossover cable is used, set the interface to operate in the same MDI mode as its peer, or

set either end to operate in auto mode.

To set the MDI mode of an Ethernet interface:

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter Ethernet interface view.

interface interface-type

interface-number

N/A

3. Set the MDI mode of the

Ethernet interface.

mdi { across | auto | normal }

By default, a copper Ethernet

interface operates in auto mode to

negotiate pin roles with its peer.

Testing the cable connection of an Ethernet interface

IMPORTANT:

• Fiber ports do not support this feature.

• If the link of an Ethernet port is up, testing its cable connection will cause the link to come down and then

go up.

You can test the cable connection of an Ethernet interface for a short or open circuit. The device displays

cable test results within 5 seconds. If any fault is detected, the test results include the length of the faulty

cable segment.

To test the cable connection of an Ethernet interface:

Step Command

1. Enter system view.

system-view

2. Enter Ethernet interface view.

interface interface-type interface-number

3. Test the cable connected to the Ethernet interface.

virtual-cable-test

Configuring storm control on an Ethernet interface

Storm control compares broadcast, multicast, and unknown unicast traffic regularly with their respective

traffic thresholds on an Ethernet interface. For each type of traffic, storm control provides a lower

threshold and a higher threshold.

For management purposes, you can configure the interface to send threshold event traps and log

messages when monitored traffic exceeds the upper threshold or falls below the lower threshold from the

upper threshold.

Depending on your configuration, when a particular type of traffic exceeds its upper threshold, the

interface does either of the following:

• Blocks this type of traffic, while forwarding other types of traffic. Even though the interface does not

forward the blocked traffic, it still counts the traffic. When the blocked traffic drops below the lower

threshold, the port begins to forward the traffic.