Redundancy
RM Web L3E
Release
6.0
07/2010
7.5
Spanning Tree
205
Figure 46: STP Port dialog, Guards tab
Transitions from
Loop Status
Counts how often the device has set the port
out of the loop status (“Loop Status” column
true).
0 - 4,294,967,295
(2
32
-1)
0
BPDU Guard
Effect (read only)
The “BPDU Guard Effect” status is only
relevant for edge ports (ports with the “Admin
Edge Port” status true), and only if the
“BPDU Guard” global function is active (see
table 81).
When such a port receives any random STP-
BPDU, the device sets the port's “BPDU Guard
Effect” status to true and its transmission
status to discarding.
Thus the device protects your network at
terminal device ports from attacks with STP-
BPDUs that try to change the topology.
To return the port to a normal transmitting
status from the locked status, break and
reconnect the link, or switch the “Admin Edge
Port” port setting off and on again.
true, false -
Parameter Meaning Possible Values Default
Setting
Table 91: Port-related STP settings and displays, guards
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