D-Link DGS-3120-48PC Reference Manual page 274

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sub_ring - Specify that the sub-ring is being configured.
raps_vlan - Specify the R-APS VLAN.
<vlanid> - Enter the VLAN ID used here.
tc_propagation - Specify that the topology propagation state will be configured.
state - Specify the topology propagation state.
enable - Enable the propagation state of topology change for the sub-ring.
disable - Disable the propagation state of topology change for the sub-ring. The default value
is disabled.
add - Connect the sub-ring to another ring.
delete - Disconnect the sub-ring from the connected ring.
sub_ring - Specify that the sub-ring is being configured.
raps_vlan - Specify the R-APS VLAN.
<vlanid> - Enter the VLAN ID used here.
revertive - Specify the state of the R-APS revertive option.
enable - Specify that the R-APS revertive option will be enabled.
disable - Specify that the R-APS revertive option will be disabled.
timer - Specify the R-APS timer used.
holdoff_time - (Optional) Specify the holdoff time of the R-APS function. The default holdoff
time is 0 milliseconds.
<millisecond 0-10000> - Enter the hold off time value here. This value must be in the
range of 0 to 10000 millseconds.
guard_time - (Optional) Specify the guard time of the R-APS function. The default guard time
is 500 milliseconds.
<millisecond 10-2000> - Enter the guard time value here. This value must be in the range
of 0 to 2000 millseconds.
wtr_time - (Optional) Specify the WTR time of the R-APS function.
<min 5-12> - Enter the WTR time range value here. The range is from 5 to 12 minutes.
The default WTR time is 5 minutes.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To configure the MEL of the ERPS ring for a specific R-APS VLAN:
DGS-3120-24TC:admin# config erps raps_vlan 4094 ring mel 2
Command: config erps raps_vlan 4094 ring mel 2
Success.
DGS-3120-24TC:admin#
To configure the ports of the ERPS ring for a specific R-APS VLAN:
DGS-3120-24TC:admin# config erps raps_vlan 4094
Command: config erps raps_vlan 4094
Success.
DGS-3120-24TC:admin#
DGS-3120 Series Managed Switch CLI Reference Guide
ring_port west 5 east 7
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ring_port west 5 east 7