H3C MSR Series, Руководство по устранению неисправностей, Страница: 9 / 28

7
Contacting technical support
If you cannot resolve a problem by using the troubleshooting procedures in this document, contact
H3C Support. When you contact an authorized H3C support representative, be prepared to provide
the following information:
•
Information described in " General guidelines ."
•
Product serial numbers.
This information will help the support engineer assist you as quickly as possible.
The following is the contact of H3C Support:
•
Telephone number
—
400-810-0504.
•
.
Troubleshooting Ethernet interfaces
This section provides troubleshooting information for common problems with Ethernet interfaces.
Failure to ping the directly connected device
Symptom
An Ethernet interface cannot ping the directly connected device.
Solution
To resolve the problem:
1.
Execute the
display interface
command and perform the following tasks:
{
Verify that the interface is up.
{
Verify that the speed and duplex mode of the local end match the speed and duplex mode of
the peer end.
{
Verify that the cable and interface are operating correctly by viewing the packet statistics of
the interface.
{
Verify that the transceiver module of the local end matches the transceiver module of the
peer end if the interface is a fiber port.
2.
Use the
display arp
command to verify that the interface can receive ARP packets sent by
the directly connected device. If not, use the
debugging arp packet
command to verify that
the interface can send and receive ARP packets correctly.
3.
Use the
debugging ip packet
command to verify that the interface can send and receive
packets correctly.
4.
Use the
debugging ip icmp
command to verify that the interface can send and receive ICMP
packets correctly.
5.
Collect the following information for the interface:
{
Execute the
display hardware internal module
interface-name interface-number
statistics
command in probe view to collect the interface statistics.
{
Execute the
display hardware internal module
interface-name interface-number
status
command in probe view to collect the status information.