3Com 5101T-FB-SMA, 5101T-FB-FC, 5101T-FB-ST Troubleshooting System Problems, Excessive Collisions

All link problems cause the link to be inoperable. If a link problem is indicated, check the indicators at both sides of the link, and then consult Table 6.

Troubleshooting System Problems

This section addresses some of the system problems that can be corrected using the options on the 10BASE-FB Transceiver. If problems occur, always check the diagnostics indicators on the Transceiver.

Excessive Collisions

Collisions can be caused by loops in the 10BASE-FB network. Such loops cause every packet to collide with itself. If you cannot locate the loop, try segmenting your network (by dis- connecting Star Couplers, or ONline and ONcore Hubs one at a time) until the loop is located.

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