Overlapping Protected Vlans Between Erp Rings On Same Node - OmniSwitch os6900 Network Configuration Manual

Configuring ERP
When the failed link shown in the above illustration recovers, the ring transitions as follows back to the
idle mode:
•
Nodes adjacent to the recovered link initiate an R-APS (NR) message and start the Guard Timer.
•
When the RPL owner receives the R-APS (NR) message, it starts the Wait-To-Restore timer (WTR),
which is the set period of time that must elapse before the RPL owner blocks the RPL.
•
Once the WTR timer expires, the RPL owner blocks the RPL and transmits an R-APS (NR, RB)
message indicating that RPL is blocked (RB).
•
On receiving the R-APS (NR, RB) message, ring nodes flush all the dynamic MAC addresses learned
on their ring ports and unblock any previously blocked ports.
•
The ring is now operating in the idle mode. The RPL is blocked and all other ring links are operational.

Overlapping Protected VLANs Between ERP Rings on same Node

In a network where all connected nodes cannot belong to a single ERP ring, the OmniSwitch supports
multiple ERP rings with a single shared node. The network example below shows two ERP rings
connected with a shared node.
OmniSwitch AOS Release 7 Network Configuration Guide
Protection Mode
June 2013
ERP Overview
page 11-7