Test Ping Packet Loss - Motorola PTP 250 User Manual

PTP 250 User Guide

Test ping packet loss

Using a computer, it is possible to generate and monitor packets lost between the PoE
power supply and the ODU. This can be achieved by executing the Command Prompt
application which is supplied as standard with Windows and Max OS X operating systems.
To test ping packet loss, proceed as follows:
1
Ensure that the IP address of the computer is configured appropriately for
connection to the ODU under test, and does not clash with the IP addresses of
other devices connected to the network.
2
If the PoE power supply is connected to an Ethernet switch or router then
connect the computer to a spare port, if available.
3
If it is not possible to connect the computer to a spare port of an Ethernet switch
or router, then the PoE power supply will need to be disconnected from the
network in order to execute this test.
The following steps will disrupt network traffic carried by the ODU under test:
Disconnect the PoE power supply from the network.
Connect the computer directly to the LAN port of the PoE power supply.
4
On the computer, open the Command Prompt application.
5
Send 1000 ping packets of length 1500 bytes. The process will take 1000 seconds,
which is approximately 17 minutes.
If the computer is running a Windows operating system, this is achieved by
typing:
where <ipaddress> is the IP address of the ODU under test.
If the computer is running a MAC operating system, this is achieved by typing:
where <ipaddress> is the IP address of the ODU under test.
6
Record how many Ping packets have been lost. This is reported by Command
Prompt on completion of the test.
The test has passed if the number of lost packets is less than 2.
phn-2182_003v004 (Oct 2011)
ping –n 1000 –l 1500 <ipaddress>
ping –c 1000 –s 1492 <ipaddress>
UNDER DEVELOPMENT
Testing link end hardware
8-9