DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
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is to prevent the possibility a loop forming in the event that two or more R-APS signal fail
messages are sent simultaneously from different ends of the ring.
WTR Time (5-12)
Tick the check box and enter the wait-to-restore (WTR) time of the R-APS function. The WTR
time defines the amount of time mandated to pass after conditions clear. After the WTR time
expires, the RPL returns to idle state (blocking). This is used to prevent too frequent operation
of ERPS due to an intermittent signal failure defect.
Click
Apply
to implement changes made.
ERPS Sub-Ring Settings
To view and modify ERPS Sub-Ring settings, click the corresponding
Sub-Ring Information
link on the table at the
bottom of the
ERPS Settings
window:
Figure 4- 85 ERPS Sub-Ring Settings window
The following parameters may be configured:
Parameter Description
Sub-Ring R-APS
VLAN (1-4094)
Enter a Sub-Ring R-APS VLAN between
1
and
4094
.
State
Tick the check box and select the desired State,
Add
or
Delete
.
TC Propagation
State
Tick the check box and select the desired Topology Change (TC) Propagation State for the
sub-ring,
Disabled
or
Enabled
. The default value is
Disabled
.
Click
Apply
to implement changes made.
