Chapter 21 Configuring RMON
Unwrap Synchronization
Figure 21-3
Unwrapped Cisco proprietary RPR with Unidirectional Excessive CRC Errors
Node B
N d C
Bidirectional Errors
Figure 21-4
shows a Cisco proprietary RPR wrapped by excessive bidirectional CRC errors, both ports
are reporting CRC-ALARMs. The figure captions further explain the process.
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
21-10