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Chapter 5: Management
5.3.4 Loop Gourd
This feature prevents loop attack. When receiving loop packets, the port will be disabled automatically, preventing the loop attack
from affecting other network devices.
Figure 5-30. Loop Gourd screen.
Table 5-23. Loop Gourd screen options.
Label Description
Enable Loop Protection Activate loop protection functions (as a whole)
Transmission Time
The interval between each loop protection PDU sent on each port. The valid value is 1 to 10 seconds.
Shutdown Time The period (in seconds) for which a port will be kept disabled when a loop is detected (shutting down
the port). The valid value is 0 to 604800 seconds (7 days). A value of zero will keep a port disabled
permanently (until the device is restarted).
Figure 5-31. Port Configuration screen.
Table 5-24. Port Configuration screen options.
Label Description
Port Switch port number
Enable Activate loop protection functions (as a whole)
Action Configures the action to take when a loop is detected. Valid values include Shutdown Port, Shutdown Port, and
Log or Log Only.
Tx Mode Controls whether the port is actively generating loop protection PDUs or only passively look for looped PDUs.