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MSTP and OTN

Created: Dec 6, 2021 12:36:43Latest reply: Jan 4, 2022 13:25:12 236 6 0 0 0
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I understand the MSTP Equipment. But we also know there is OTN. how does OTN fit into the picture ? How is OTN related to MSTP ?

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liqiang185
Admin Created Dec 6, 2021 12:50:41

Hi there!

Based on WDM, OTN integrates some advantages of SDH, such as abundant OAM overheads, flexible service grooming, and perfect protection modes.
OTN service grooming is classified into optical-layer grooming and electrical-layer grooming.
Optical-layer grooming can be considered as WDM.
Electrical-layer grooming can be understood as SDH.
The simplest equation for OTN is as follows: OTN = SDH + WDM.

Thank you!

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Navin_kay
Navin_kay Created Dec 6, 2021 13:02:47 (0) (0)
 
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Hi, friend!
Please wait a moment. The engineer will reply later.
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Hi there!

Based on WDM, OTN integrates some advantages of SDH, such as abundant OAM overheads, flexible service grooming, and perfect protection modes.
OTN service grooming is classified into optical-layer grooming and electrical-layer grooming.
Optical-layer grooming can be considered as WDM.
Electrical-layer grooming can be understood as SDH.
The simplest equation for OTN is as follows: OTN = SDH + WDM.

Thank you!

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  • x
  • convention:

Navin_kay
Navin_kay Created Dec 6, 2021 13:02:47 (0) (0)
 
Posted by liqiang185 at 2021-12-06 12:50Hi there!Based on WDM, OTN integrates some advantages of SDH, such as abundant OAM overheads, flexi ...

But don't we also transmit SDH services over WDM as well ? If they are both separate entities how can the services of one technology be sent over the other ?

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liqiang185
liqiang185 Created Jan 5, 2022 03:12:16 (0) (0)
Dear friend!
SDH equipment can be deployed independently. WDM equipment is required if the distance (more than 100 km) and the rate (more than 10 Gbit/s) are required. When the WDM equipment forwards services to the SDH equipment, the WDM equipment only needs to transparently transmit the SDH services as client-side services without affecting the overhead bytes in the SDH signals.  
epistemophile
epistemophile Reply liqiang185  Created Jan 31, 2022 01:52:47 (0) (0)
wait wait. SDH has a different frame structure. How does lets say STM-1 get translated into a WDM Signal ?  

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