R3303-HP HSR6800 Routers Network Management and Monitoring Configuration Guide

Using ping, tracert, and system debugging

Use the ping, tracert, and system debugging utilities to test network connectivity and identify network

problems.

Ping

The ping utility 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.

Using a ping command to test network connectivity

Execute ping commands in any view.

Task Command Remarks

Test the network

connectivity to an IP

address.

• 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 |

{ -mt topology-name |-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 ]

Set a larger value for the timeout timer

(indicated by the -t parameter in the

command) when you configure the

ping command for a low-speed

network.

Disabling the echo reply function on

the destination affects the ping

function.

For more information about the ping lsp command, see MPLS Command Reference.

Ping example

Network requirements

Test the network connectivity between Device A and Device C in Figure 1. If they can reach each other,

get detailed information about routes from Device A to Device C.