User Manual
Table Of Contents
- Contents
- List of figures
- List of tables
- About this document
- ipBTS system overview
- Planning
- ipBTS C30 installation
- RN commissioning
- Requirements
- CLI connection
- Establishing a console connection
- Connecting the laptop to the ipBTS C30
- Downloading and activating new software
- Verifying SNTP time
- Commissioning the ipBTS C30
- Performing Loopback tests
- The loopback test process
- Backhaul loopback testing
- Ethernet loopbacks
- Looping back Ethernet backhaul links
- Looping back at the Ethernet port
- Entering diagnostic mode and configuring test parameters
- Performing external loopback tests on backhaul links
- Troubleshooting failed backhaul links
- Removing physical loopbacks
- Configuring IP on the Ethernet port and laptop
- Establishing the CLI/SSH/Ethernet connection
- Updating node software
- RN hardware components
- RN Specifications
- Hot-swapping ipBTS hardware
- Index
Chapter 4 l RN commissioning
Performing Loopback tests
4-16 910136 Rev01.00 Standard July 2007
window, the system displays a count that counts down to zero and the following message
displays:
Press the <Esc> key followed by the Space Bar key three times
to Enter Diagnostic Mode
NOTE: If you do not press a key before the three-second window passes, the power on
self-tests run and normal operation initiates.
3. Press the
Space Bar key three times during the count down, to display the diagnostics
banner.
The >ipBTS C30_SC> prompt displays, indicating you are currently in diagnostics
mode and you can now perform Loopback tests.
4. Resetting the ipBTS C30 causes a warm reboot. Enter the diagnostics mode during that
countdown as you did in step 3.
Performing external loopback tests on backhaul links
Follow this procedure to perform external loopback tests on backhaul links.
NOTE
The T1/E1 ports are not supported in this release of the ipBTS.
1. Enter the following command to start the loopback test:
>ipBts-XXX_SC>commsend <number of tests> <ports>
Where:
•<number of tests> specifies the number times each port is to be tested. The valid
range is between (0 – 100000).
•<ports> specifies the names of the ports to be tested. See Table 4-4.
For example, the following command would start the loopback test for a system with two
E1 backhaul links: >ipBts-XXX_SC>commsend 10 T1 T2
2. Evaluate the results.
Table 4-4. Backhaul links to be tested
<ports> Indicates the following ports to be tested
T1 The first T1 or E1 backhaul
T2 The second T1 or E1 backhaul
T3 The third T1 or E1 backhaul
T4 The fourth T1 or E1 backhaul
FENET1 The primary Ethernet backhaul