Convert a circuit from UPSR to unprotect on 15454s(MSPP)

Question

Hi,
we are implementing ONS 15454 SONET(MSPP) network. And Is there any method to convert a UPSR circuit(VT/STS) to unprotect on ONS15454/15310(Rel 6.0) by using CTC/TL1 without service interruption? Appreciate your expert advice.

Answer 1

As Todd indicated, in release 6.0 there is a bridge and roll feature; you can upgrade an unprotected circuit to a fully protected circuit or downgrade a fully protected circuit to an unprotected circuit with the exception of a UPSR circuit. When using bridge and roll on UPSR circuits, you can roll the source or destination or both path selectors in a dual roll. However, you cannot roll a single path selector.
The CTC Bridge and Roll wizard reroutes live traffic without interrupting service. The bridge process takes traffic from a designated "roll from" facility and establishes a cross-connect to the designated "roll to" facility. When the bridged signal at the receiving end point is verified, the roll process creates a new cross-connect to receive the new signal. When the roll completes, the original cross-connects are released. You can use the bridge and roll feature for maintenance functions such as card or facility replacement, or for load balancing. You can perform a bridge and roll on the following ONS platforms: ONS 15454, ONS 15454 SDH, ONS 15600, ONS 15327, and ONS 15310-CL.