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Topic discussion | Comparison between SNCP protection and MSP protection [Issue 11]

Latest reply: Jan 18, 2022 03:28:46 888 12 5 0 1

SNCP MSP

SNCP: Sub-Network Connection Protection.

MSP: Multiplex Section Protection.

SNCP and MSP are applicable to many transmission networks. When the working channel is interrupted, services are immediately carried by the protection channel to ensure that customer services are not affected. But there are many differences.


Based on your work experience, please talk about the differences between them. If both protection modes are met in a network topology, which protection mode do you prefer to configure?


Please share your views in the comment area below the post!

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wissal
wissal Created Jan 17, 2022 10:07:19 (0) (0)
Thank you, my friend  
Malik3000
Malik3000 Created Jan 17, 2022 17:59:51 (0) (0)
Thanks  
little_fish
little_fish Created Jan 19, 2022 09:58:40 (0) (0)
 

MSP: Multiplex section protection, because Multiplex section, Regenerator section and Optical section are in general 1:1:1 MSP is in general protecting the fibers between two nodes.

SNCP: sub-network connection protection, this is in general protection of (a section of) a path in a network and applied to VC-n.


  • SNCP is faster than MSP (less switching time). 

  • MSP has 16 nodes limit where as no limit for SNCP. 

  • Minimum protection unit of SNCP is T1 (or E1) where as for MSP is STM-1 (not sure about SONET). 

  • SNCP is always 1+1 (to my knowledge but Huub can verify it) where as MSP can be 1+1 or 1:N. 

  • MSP is implemented by switching matrix card where as SNCP is implemented by tributary card.

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liqiang185
liqiang185 Created Jan 18, 2022 05:56:02 (0) (0)
MSP and SNCP implement protection switching both through line boards and cross-connect boards.  
BAZ
MVE Author Created Jan 17, 2022 14:22:43

Hello TXN expert .. Share your thughts
@alopez @Unicef @WalidNawar_PDAC_MVE @liqiang185 @Malik3000 @jahangirgp @wissal
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liqiang185
liqiang185 Created Jan 18, 2022 05:44:10 (0) (0)
You're welcome to join the discussion.  

- MSP work in line or ring topology while SNCP has no limit for topology.
- MSP work with only SDH while SNCP work with almost all Transmission technologies .
- MSP needs all NEs to be SDH while SNCP can include any media or Transmission technologies in the middle.

In the ring topology :
- MSP is based on VC4 level where SNCP can work starting from VC12.
- MSP works only for 16 node in maximum while SNCP has no limit.
- MSP depends on Cross connect boards and line boards while SNCP depends on tributary and cross connect .

-In line topology
- MSP dont need switching protocol in 1+1 but needs it in 1:n.
While SNCP dont need switching protocol.
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liqiang185
liqiang185 Created Jan 18, 2022 06:14:30 (0) (0)
The MSP can only be caused by the SDH network. On a WDM network, ODUk ring protection is similar to MSP. It seems that my understanding was wrong.  
MSP use for network of local site or local country. SNCP use for 3rd equipment or long-haul transmission or oversea transmission
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liqiang185
liqiang185 Created Jan 18, 2022 06:15:43 (0) (0)
Yes, I agree with you.  

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