User Manual UMN:CLIV8102209Note the following points about manual-switch command.- Ineffective in an existing forced-switch or signal failure (SF) condition- Overridden by new forced-switch or SF conditions- Multiple manual-switch commands cancel all manual-switch commandsIn revertive operation, when the failure is recovered, the traffic channel resumes the useof the recovered ring link only after the traffic channel has been blocked on the RPL. Onthe other hand, in non-revertive operation, the traffic channel remains blocked on the re-covered ring link and unblocked on the RPL even if the failure is recovered.To specify a non-revertive or revertive mode, use the following command.Command Mode Descriptionethernet oam r-aps <1-255> non-revertive GlobalSpecifies a non-revertive mode.no ethernet oam r-aps <1-255>non-revertive Specifies a revertive mode.7.7.19.4 Hold Off TimeWhen a link failure occurs, the nodes start Hold off timer. The nodes do not change its linkstate until a hold off timer expires, to ensure that while the fault still exists, a link failurestate is maintained. After the timer expires, they send the Signal Fail (SF) frames. Thering state is not changed from idle to protection state during the hold off time.To specify hold-off time, use the following command.Command Mode Descriptionethernet oam r-aps <1-255>hold-off-time <0-10000> GlobalConfigures hold-off time0-10000: hold-off time (default: 100ms, unit: millisec-ond)To configure hold-off time as default, use the following command.Command Mode Descriptionno ethernet oam r-aps <1-255>hold-off-time Global Configures hold-off time as default value7.7.19.5 Guard TimeIf Node A and Node B detect the link failure being recovered, they send No Request (NR)frames to RPL owner and starts a guard timer to keep the blocking status of the link re-covered ports. To prevent ring nodes from receiving out dated R-APS messages, RPLport of these nodes does not receive any frames from the external switches until this tim-er has expired.i
