ICMP echo operation configuration example

As shown in Figure 7, configure an ICMP echo operation on the NQA client (Device A) to test the round-trip time to Device B. The next hop of Device A is Device C.

# Assign IP addresses to interfaces, as shown in Figure 7. (Details not shown.)

# Configure static routes or a routing protocol to make sure the devices can reach each other. (Details not shown.)

# Create an ICMP echo operation.

<DeviceA> system-view
[DeviceA] nqa entry admin test1
[DeviceA-nqa-admin-test1] type icmp-echo

# Specify 10.2.2.2 as the destination IP address of ICMP echo requests.

[DeviceA-nqa-admin-test1-icmp-echo] destination ip 10.2.2.2

# Specify 10.1.1.2 as the next hop. The ICMP echo requests are sent through Device C to Device B.

[DeviceA-nqa-admin-test1-icmp-echo] next-hop ip 10.1.1.2

# Configure the ICMP echo operation to perform 10 probes.

[DeviceA-nqa-admin-test1-icmp-echo] probe count 10

# Set the probe timeout time to 500 milliseconds for the ICMP echo operation.

[DeviceA-nqa-admin-test1-icmp-echo] probe timeout 500

# Configure the ICMP echo operation to repeat every 5000 milliseconds.

[DeviceA-nqa-admin-test1-icmp-echo] frequency 5000

# Enable saving history records.

[DeviceA-nqa-admin-test1-icmp-echo] history-record enable

# Set the maximum number of history records to 10.

[DeviceA-nqa-admin-test1-icmp-echo] history-record number 10
[DeviceA-nqa-admin-test1-icmp-echo] quit

# Start the ICMP echo operation.

[DeviceA] nqa schedule admin test1 start-time now lifetime forever

# After the ICMP echo operation runs for a period of time, stop the operation.

[DeviceA] undo nqa schedule admin test1

# Display the most recent result of the ICMP echo operation.

[DeviceA] display nqa result admin test1
NQA entry (admin admin, tag test1) test results:
    Send operation times: 10             Receive response times: 10
    Min/Max/Average round trip time: 2/5/3
    Square-Sum of round trip time: 96
    Last succeeded probe time: 2011-08-23 15:00:01.2
  Extended results:
    Packet loss ratio: 0%
    Failures due to timeout: 0
    Failures due to internal error: 0
    Failures due to other errors: 0

# Display the history records of the ICMP echo operation.

[DeviceA] display nqa history admin test1
NQA entry (admin admin, tag test) history records:
  Index      Response     Status           Time
  370        3            Succeeded        2007-08-23 15:00:01.2
  369        3            Succeeded        2007-08-23 15:00:01.2
  368        3            Succeeded        2007-08-23 15:00:01.2
  367        5            Succeeded        2007-08-23 15:00:01.2
  366        3            Succeeded        2007-08-23 15:00:01.2
  365        3            Succeeded        2007-08-23 15:00:01.2
  364        3            Succeeded        2007-08-23 15:00:01.1
  363        2            Succeeded        2007-08-23 15:00:01.1
  362        3            Succeeded        2007-08-23 15:00:01.1
  361        2            Succeeded        2007-08-23 15:00:01.1

The output shows that the packets sent by Device A can reach Device B through Device C. No packet loss occurs during the operation. The minimum, maximum, and average round-trip times are 2, 5, and 3 milliseconds, respectively.