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Testing Interfaces
Testing interfaces allows you to troubleshoot problems
and to check the quality of links at various layers in the interface
stack. The router supports the following test options:
- Transmission of BERT patterns to remote devices
- Local loopback—Loops
the data back toward the router; on supported line modules, also sends
an alarm indication signal (AIS) out toward the network
- Network loopback—Loops the data toward the network
before the data reaches the frame
- Payload loopback—Loops the data toward the network
after the framer processes the data
- Remote loopback—Provides the ability to:
- Request that remote devices enter into loopback
- Be placed in loopback by remote devices
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