Cisco CE 2000 Platform SCE 2000 4xGBE Installation And Configuration Manual page 141

Appendix A The External Optical Bypass Module
External Optical Bypass Functionality
The figure below illustrates the operation of the bypass module when it is active (in bypass). The
data traffic flows through the bypass module, and the GBE link no longer includes the SCE 2000
platform. Note that when the bypass module is active, it puts the SCE 2000 platform into a loop
connection, creating a shortcut between the SCE 2000 platform GBE interfaces.
Figure A-2: External Optical Bypass Module: Active (in bypass)
SCE 2000 4xGBE Installation and Configuration Guide
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