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Korjavin Ivan
Asked: 2012-08-27 23:44:48 +0800 CST

Freebsd how detect ethernet loopback on interface

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I have network based on stupid hubs.

And freebsd router in center of this network.

Today i see in 'systat -vmstat' :
Interrupts 8005 em1:rx 0

That was a loop on one hub.

Is there any way to detect this and email me if this happent?

freebsd

1 Answers

  1. Best Answer

    Either institute sufficient administrative controls to prevent loops from being formed or replace your hubs with switches capable of running spanning tree.

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