Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 252 of 669
RPL Configuration
The ring protection link is the ring link that under normal conditions (i.e., without any failure or request) is
blocked (at one or both ends) for traffic channel, to prevent the formation of loops.
RPL Role
Select either ‘
RPL_Owner
’ or ‘
RPL_Neighbour
’, where:
RPL Neighbour
node, when configured, is an Ethernet ring node adjacent to the RPL that is
responsible for blocking its end of the RPL under normal conditions (i.e., the ring is established and
no requests are present in the ring) in addition to the block by the RPL owner node. However, the
RPL Neighbor is not responsible for activating the reversion behavior.
RPL Owner
node
is an Ethernet ring node adjacent to the RPL that is responsible for blocking its end
of the RPL under normal conditions (i.e., the ring is established and no requests are present in the
ring).
It is also responsible for activating reversion behavior from protected or manual switch/forced switch
(MS/FS) conditions.
RPL Port
This dropdown lets you select the east port or west port as the RPL block.
None
: Nothing selected as the RPL block.
Port0
: This selects the East port of the S4224 in the ring as the RPL block.
Port1
: This selects the West port of the S4224 in the ring.
Clear
Clear
: If the owner must be changed; check the Clear checkbox to clear the RPL owner for that
ERPS ring.
Sub-Ring Configuration
Displays only for a “Sub” Ring type instance.
Ring Type
Displays “Sub” Ring or “Major” as the ring type for this instance.
Topology Change
Check this checkbox to cause topology changes in the sub-ring to be propagated to the Major ring.
(This field only displays for a Ring Type of ‘Sub-Ring’.
Topology change propagation, when enabled,
sends a
Topology_Change
signal when a flush FDB action is triggered by the ERP Control Process
of a Sub-Ring’s ERP Instance. The
Topology_Change
signal is disabled after a period of 10 ms.
