H3C Technologies H3C MSR 50 - Manual (Page 219)

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
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.
• 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
Test the network
connectivity to an IP
address.
Only the directly connected segment
address can be pinged if the outgoing
interface is specified with the -i
keyword.
• 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 ]
Disabling the echo reply function on
the firewall installed on the destination
affects the ping function.
For more information about the ping ipx command, see IPX Command Reference.
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 62 . If they can reach each other,
get detailed information about routes from Device A to Device C.
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