System processing when a fault occurs during the WTR time on an ASON network?


When a fault occurs during the WTR time, how the system processes a service is related to the service SLA but not related to whether the automatic reversion time is set.
For example, if the service is under diamond rerouting 1+1 protection and the protection trail is faulty during the WTR time, the ASON software considers that both the working and protection trails are faulty and therefore computes a new route according to the rerouting 1+1 protection mechanism.
If the service is under diamond non-rerouting 1+1 protection, when the preceding condition occurs, the service is directly interrupted according to the non-rerouting 1+1 protection mechanism.

Other related questions:
What fault occurs when the ALM indicator of a board is on
When the ALM indicator of a board is on, the most possible cause is that the temperature of the board exceeds the upper limit. The hermetic cabinet is not well ventilated. If the dust concentration in the equipment room is high, especially in the areas with heavy blown sands, the air filter may be blocked, which affects ventilation. As a result, the temperature in the chassis rises considerably. You need to clean the air filter in this case. The air filter is installed at the rear of the S7700&S9700 chassis. You can loosen the screws to remove the air filter. If the air filter is not blocked but the environment temperature is high, you can run the display temperature slot slot-id command to check the temperature of the board. In addition, the failure of fans also causes high temperature of boards.

When interfaces used to track BFD sessions are configured on an S9300, and the WTR time is set, why does BFD flapping occur sometimes
S9300 switches have LE0MFSUA installed on the MPU. In V100R002, when a BFD session becomes Up, the blocked port is unblocked. When the WTR time is set and the BFD session state changes from Down to Up, BFD sends a notification to the upper-layer application only after the WTR time expires. In this case, the port's blocking state is canceled until the WTR timer times out. The blocked port, however, cannot send packets, causing the BFD session to become Down again. BFD flapping occurs. This problem is solved in V100R003 and later versions.

WTR time of OLP protection
The OLP board supports optical line protection, intra-board 1+1 protection, and client 1+1 protection. If the reversion mode is revertive, the default WTR period is 10 minutes.

In FusionInsight,what time does Alarm 12007 Process Fault occur?
This alarm is generated when the process health check module detects that the process connection status is Bad for three consecutive times. The process health check module checks the process status every 5 seconds. This alarm is cleared when the process can be connected.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top