12
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.
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 operations
exist.
3.
Specify the ICMP echo type
and enter its view.
type icmp-echo
N/A
4.
Specify the destination IP
address for ICMP echo
requests.
•
IPv4 address:
destination ip
ip-address
•
IPv6 address:
destination ipv6
ipv6-address
By default, no destination IP
address is specified.
5.
(Optional.) Set 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 payload fill string is the
hexhexadecimal string
00010203040506070809.
7.
(Optional.) Specify the
output interface for ICMP
echo requests.
out interface interface-type
interface-number
By default, the output interface for
ICMP echo requests is not
specified. The NQA client
determines the output interface
based on the routing table lookup.
8.
(Optional.) Specify the
source IP address for ICMP
echo requests.
•
Use the IP address of the
specified interface as the
source IP address:
source interface
interface-type
interface-number
•
Specify the source IPv4
address:
source ip ip-address
•
Specify the source IPv6
address:
source ipv6 ipv6-address
By default, the requests take the
primary IP address of the output
interface as their source IP
address.
If you execute the
source
interface
,
source ip
, and
source
ipv6
commands multiple times,
the
most recent configuration
takes effect.
The specified source interface
must be up.
The specified 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.
9.
(Optional.) Specify the next
hop IP address for ICMP
echo requests.
•
IPv4 address:
next-hop ip ip-address
•
IPv6 address:
next-hop ipv6 ipv6-address
By default, no next hop IP address
is configured.