User Manual

IP-RN 8000 Installation & Commissioning Guide 157
Chapter 13
Loopback testing backhaul links
About this chapter
This chapter describes how to perform loopback tests on each backhaul cable and contains the
following sections:
• Understanding the backhaul link loopback test process
on page 158
• Understanding backhaul loopback testing
on page 159
• Understanding a typical T1/E1 backhaul network on page 160
• Understanding Ethernet loopbacks
on page 160
• Looping back T1/E1 backhaul links
on page 161
• Looping back Ethernet backhaul links
on page 162
• Entering diagnostic mode and configuring test parameters
on page 163
• Performing external loopback tests on backhaul links
on page 164
• Troubleshooting failed backhaul links
on page 166
• Removing physical loopbacks
on page 168