H3C Technologies H3C S6300 Series Switches - Manual (Page 130)

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Configuring the ICMP echo operation
The ICMP echo operation measures the reachability of a destination device. It has the same function as
the ping command, but provides more output information. In addition, if multiple paths exist between the
source and destination devices, you can specify the next hop for the ICMP echo operation.
The ICMP echo operation is not supported in IPv6 networks. To test the reachability of an IPv6 address,
use the ping ipv6 command. For more information about the command, see Network Management and
Monitoring Command Reference.
To configure the ICMP echo operation:
Step Command Remarks
1. Enter system view. system-view N/A
2. Create an NQA operation and
enter NQA operation view. nqa entry admin-name
operation-tag By default, no NQA operation
is created.
3. Specify the ICMP echo type
and enter its view.
type icmp-echo N/A
4. Specify the destination IP
address of ICMP echo requests. destination ip ip-address
By default, no destination IP
address is specified.
5. (Optional.) Specify the payload
size for each ICMP echo
request. data-size size The default setting is 100 bytes.
6. (Optional.) Specify the payload
fill string for ICMP echo
requests.
data-fill string
The default setting is the
hexadecimal number
00010203040506070809.
7. (Optional.) Specify the source
IP address of ICMP echo
requests.
• Specify the IP address of the
specified interface as the source
IP address:
source interface interface-type
interface-number
• Specify the source IP address:
source ip ip-address
By default, no source IP address
is specified. The requests take
the primary IP address of the
outgoing interface as their
source IP address.
If you configure both source ip
and source interface, the most
recent configuration takes
effect.
The specified source interface
must be up. The source IP
address must be the IP address
of a local interface, and the
interface must be up.
Otherwise, no probe packets
can be sent out.
8. (Optional.) Specify the next hop
for ICMP echo requests.
next-hop ip-address
By default, no next hop is
configured.
Configuring the DHCP operation
The DHCP operation measures whether or not the DHCP server can respond to client requests. DHCP
also measures the amount of time it takes for the NQA client to obtain an IP address from a DHCP server.