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
Airvana ipBTS C30 Installation and Commissioning, Release 4.0 4-19
Number of Received Frames : x
Number of Error Frames : x
Frames without valid Test ID : x
Frames with invalid Data : x
Frame Error Rate : x
Error Counters
Rx Frame Length Violations ... x
Rx Non-octet alignment ... x
Rx Abort Frames ... x
Rx CRC Errors ... x
•If the Number of Received Frames does not equal the Number of
Transmitted Frames, or if there are any errors counted, the node has a fault and
you need to contact Airvana’s Technical Assistance Center. This is the end of this
procedure.
•If the Number of Received Frames does equal the Number of
Transmitted Frames and there are no errors, you must troubleshoot the
following:
• the backhaul cable
• the physical loopback installed earlier in the loopback testing process
• the backhaul wiring into the punch block
• any external equipment the backhaul cable is attached to, for example the DSX
6. Enter >ipBts-XXX_SC>reset to reset the ipBTS C30 and return to operational
mode.
The ipBts-XXX> prompt displays.
Allow the ipBTS C30 to reboot to completion, skipping the diagnostic mode required for
loopback testing.
Removing physical loopbacks
After Loopback testing is complete, remove all external, physical loopbacks installed earlier to
restore the system to operational mode.
CAUTION
Failure to remove any loopbacks installed earlier results in failed backhaul links.
The Loopback testing process is also complete.
Procedure
1. Place the laptop on a secure surface.