Whether transient packet loss is normal for IP RAN services carried on the protection trail during OLP switching

1

The OLP switching time is within 50 ms. During this short period, packet loss of the packet services carried on the protection channel is normal.

Other related questions:
Method used to specify the working and protection trails of an intra-board 1+1 protection group on OLP boards
Select ports 1(RI1/TO1) and 2(RI2/TO2) of the OLP boards as the working and protection trails respectively.

Whether the working and protection channels must be fixed when the OLP board is used to configure OLP protection
When the OLP board is used to configure OLP protection, the working channel must be the optical port 1 (RI1/TO1) of the OLP board and the protection channel must be set to optical port 2 (RI2/TO2). Otherwise, the OLP protection group cannot work normally.

Whether services on the protection channel of an intra-board 1+1 protection group can be manually switched to the working channel
Sure. Intra-board 1+1 protection is generally unidirectional and non-revertive. Therefore, services need to be manually switched back to the working channel when the working channel is normal.

Whether OTU1 services can be created by trail
According to the current product specifications, when the service type is OTUk at the source and sink, client OTUk trails cannot be managed in E2E mode, and OTUk services cannot be created by trail. Instead, they can be created manually by site.

Interconnection mode between TOA and IPRAN
In GMP-TTT mode, synchronous Ethernet transparent transmission is supported.

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