A large OAM delay

wissal · Created Jan 7, 2020 21:41:15

Hello,

When APS switching is repeatedly performed, check whether the working tunnel is stable. If microwave links are configured on the working tunnel, the working tunnel tends to be unstable, and delay variation is large.

Please

Check whether there are microwave links configured on the working tunnel.
There are microwave links on the working tunnel.
Perform an LSP ping on the working tunnel.
When an OAM alarm is reported, the LSP ping operation succeeds and no packet is lost. No packet loss occurs on the working tunnel. In other words, the working tunnel is working properly.
Create a test tunnel between the two NEs, enable the OAM function, modify the interval at which OAM packets are sent, and query alarms.
When the OAM detection is performed every 3.3 ms, OAM alarms are frequently reported. However, when the detection is performed every 1s, no alarm is reported within the next 30 minutes. It is suspected that there is a large delay variation on microwave links.
Enable the performance detection for the tunnel and check OAM delay variation.
The delay variation is large.
Perform OAM detection every 10 ms.

Thanks

wissal · Created Jan 7, 2020 21:41:15

Hello,

When APS switching is repeatedly performed, check whether the working tunnel is stable. If microwave links are configured on the working tunnel, the working tunnel tends to be unstable, and delay variation is large.

Please

Check whether there are microwave links configured on the working tunnel.
There are microwave links on the working tunnel.
Perform an LSP ping on the working tunnel.
When an OAM alarm is reported, the LSP ping operation succeeds and no packet is lost. No packet loss occurs on the working tunnel. In other words, the working tunnel is working properly.
Create a test tunnel between the two NEs, enable the OAM function, modify the interval at which OAM packets are sent, and query alarms.
When the OAM detection is performed every 3.3 ms, OAM alarms are frequently reported. However, when the detection is performed every 1s, no alarm is reported within the next 30 minutes. It is suspected that there is a large delay variation on microwave links.
Enable the performance detection for the tunnel and check OAM delay variation.
The delay variation is large.
Perform OAM detection every 10 ms.

Thanks

A large OAM delay

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