123
Tasks at a glance
Configuring the saving of NQA history records
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 address
of ICMP echo requests.
destination ip
ip-address
By default, no destination IP
address is specified.
5.
(Optional.) Specify the payload
size in each ICMP echo request.
data-size
size
The default setting is 100 bytes.
6.
(Optional.) Specify the string to
be filled in the payload of each
ICMP echo request.
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.
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