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Using ping, tracert, and system debugging, Ping, Introduction – H3C Technologies H3C SR8800 User Manual

Page 13: Configuring ping

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Using ping, tracert, and system debugging

You can use the ping command to check the connectivity to a destination, use the tracert command to

trace the path to a destination, and use the debug command to diagnose system faults based on the

debugging information.

Ping

Introduction

Use the ping utility to check the reachability to a specific address.
Ping sends ICMP echo requests (ECHO-REQUEST) to the destination device. Upon receiving the requests,

the destination device responds with ICMP echo replies (ECHO-REPLY) to the source device. The source

device outputs statistics about the ping operation, including the number of packets sent, number of echo

replies received, and the round-trip time. You can measure the network performance by analyzing these
statistics.

Configuring ping

To configure the ping function:

Task Command

Remarks

Check whether a specified
address in an IP network is

reachable.

For an IPv4 network:

ping [ ip ] [ -a source-ip | -c count | -f |
-h ttl | -i interface-type interface-number

| -m interval | -n | -p pad | -q | -r | -s

packet-size | -t timeout | -tos tos | -v |
-vpn-instance vpn-instance-name ] *

host

For an IPv6 network:
ping ipv6 [ -a source-ipv6 | -c count |

-m interval | -s packet-size | -t timeout |

-vpn-instance vpn-instance-name ] *
host [ -i interface-type

interface-number ]

Use either approach.
Available in any view.

NOTE:

For a low-speed network, H3C recommends that you set a larger value for the timeout timer (indicated
by the -t parameter in the command) when configuring the ping command.

Only the directly connected segment address can be pinged if the outgoing interface is specified with
the -i argument.

For more information about the ping lsp command, see

MPLS Command Reference.