Using FibeAir2000 Manager to Set up a Ring
Chapter 13
FA4800 User Manual
Release 1.9.30
13-9
Figure 13-8: Configuring RPL VIDs
5. Enter the minimum times for failure detection and recovery.
For dual-homed configurations, where part of the ring goes through the
core, if a core segment fails, the core should be allowed to recover
before the RPL enters Protection State. Otherwise, it could happen that
both the core and the Ceragon ring will switch in parallel. You should
therefore, configure a Minimum time for failure detection high
enough to take this possibility into account.
The Minimum time for recovery is a delay switch to prevent rapid
“on-off” fluctuations. It functions like a delay switch use to protect elec-
trical devices from rapid “on-off” power fluctuations, which in this con-
text, may lead to potential short term loops.
6. Click OK to accept your settings.
The RPL will be clearly indicated in the FibeAir2000 Manager. In the Link
status area on the top left, you will see an Ethernet (Blocked) notice:
A Link-Idle message is displayed on the Ethernet Services Bar:
