Quote:
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Originally Posted by cd34
hehe, ok, ethernet 101
each mac address does a little broadcast, and the proxy arp tells the first switch,
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That means:
The switch sends configuration BPDUs to communicate and compute the spanning-tree topology. A MAC frame conveying a BPDU sends the switch group address to the destination address field. All switches connected to the LAN on which the frame is transmitted receive the BPDU. BPDUs are not directly forwarded by the switch, but the information contained in the frame can be used to calculate a BPDU by the receiving switch, and, if the topology changes, instigate a BPDU transmission.
The answer to your question Cleo is no, there might not be a warning of a problem because the switch is doing exactly what its suppose to do, recalculate the tree.
However, it is possible for forge BPDU and cause the main, or *root* switch to constantly update the tree resulting in a form of DoS attack.
My servers stopped sending traffic about 4 this morning, I doubt corey was making changes to the network at that time of the morning. Considering that and the way Danny's post was worded, I'll bet it was the upstream provider having trouble.