The Ring Statistics Screen

Wrap-A - The flow of the primary ring is entering through port A (primary in) and is wrapped by the MAC, causing the ring to exit through port A (secondary out). Port B is disconnected from the ring. If the HSIM-F6 MAC Configuration reads “Wrap-A” the ring has lost the redundancy of the secondary ring due to the wrapped condition. This configuration should be repaired, as additional problems could isolate stations from the FDDI ring.

Primary

 

Primary

In

 

Out

Port A

MAC

Port B

Secondary

 

Secondary

Out

 

In

Figure 3-7 Example of Wrap-A MAC Configuration

HSIM-F6 User’s Guide

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Image 37
Cabletron Systems BRIM-F6 manual Primary Out Port a