Hi Huub,

Are you far from home?

Is an ODUk unity coming from an OPUk-Xv group is allowed to be an ODUj tributary in a high order OPUk?

I would think it is the reverse situation written in G.872.

G.872 (10/2012), section 7.1.7 : "NOTE - The transport of higher rate ODU signals via a virtually concatenated group of lower rate ODU signals is possible, but results in a non-optimal solution".

In this second situation, perhaps it is non optimal because only ended equipments are concerned by the virtual concatenation.

Thanks for your words,
cordialement,
Michelot

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Bonjour Michelot,

You write:

Are you far from home?

No, I am at home, but still very busy ^_^

Is an ODUk unity coming from an OPUk-Xv group is allowed to be an
ODUj tributary in a high order OPUk?

Yes, for example an ODU4 can be mapped and transported in an OPU1-4v.
Each of the four ODU1 can be transported in a different higher order
ODUk.

I would think it is the reverse situation written in G.872.

G.872 (10/2012), section 7.1.7 : "NOTE - The transport of higher rate
ODU signals via a virtually concatenated group of lower rate ODU
signals is possible, but results in a non-optimal solution".

So this is correct.

In this second situation, perhaps it is non optimal because only
ended equipments are concerned by the virtual concatenation.

It is non-optimal because of multiple mappings, each mapping
requires management actions and adds latency.

Cordialement,

Huub


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Bonjour Huub,

Many thanks for the reply.

Thanks for your valuable time.

Cordialement,
Michelot

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