What You Can Do In This Chapter; Loop Guard - ZyXEL Communications GS1900 Series User Manual

Loop Guard - Probe Packet
Fig ure 88
The Switch also shuts down port
words loop guard also protects against standard network loops. The following figure illustrates three
switches forming a loop. A sample path of the loop guard probe packet is also shown. In this example,
the probe packet is sent from port
port . The Switch will shut down port
N
Loop Guard - Network Loop
Fig ure 89
12.1.1 Wha t Yo u C a n Do in this C ha pte r
The
L o o p G ua rd
12.2 L o o p G ua rd
Use the
L o o p G ua rd
screen.
Chapter 12 Monitor: Loop Guard
if the probe packet returns to switch
N
and returns on another port. As long as loop guard is enabled on
N
if it detects that the probe packet has returned to the Switch.
N
screen (Section 12.2 on page
screen to view Switch loop guard status. Click
GS1900 Series User's Guide
88) displays loop guard status.
Mo nito r
88
on any other port. In other
A
> to access this
L o o p G ua rd