Physical
LAN
• Too Many Physical Errors: The CRC re-computed by the analyzer when the frame was received did not match the CRC at the end of the frame, indicating one or more corrupted bits in the frame. The threshold applies to a window of consecutive CRC frames from any source.
• MAC Flooding: There is a high rate of new MAC Addresses flooding the network. This is often done to fill up switch node tables to cause a Denial of Service attack.