Got it
Huawei Enterprise Support Community
Community Forums Transmission Network
SNCP 1+1 Unidirectional a...

SNCP 1+1 Unidirectional and Bidirectional network scenario

Latest reply: Aug 6, 2020 01:07:14 3726 23 15 0 1
View the author 1#

Hi there!

This time, I will share with you about SNCP 1+1 Unidirectional and Bidirectional network scenario.

Below is the network scenario to implement either Unidirectional or Bidirectional:


1. Line protection.

> Only can be set to Unidirecional because of no APS available.

> Set to non-revertive because of the bridge are equal. This is also to avoid power "glitch"

140036g3pxyjuaiuu6f9u6.png?Capture1.PNG

2. Channel protection. Protecting the client SDH/SONET.

> Set to Unidirectional. The channel protection path is 100% dedicated to the protection path.

> You can set either non-revertive or auto-revertive.

140041rrgzghyrmy1g7wri.png?Capture2.PNG


3. Channel protection. Protecting the client ETH.

> Set to Bidirectional. This to make the upstream and downstream running in same latency.

> You can set either non-revertive or auto-revertive.

140046gontlowdzoo1q0ko.png?Capture3.PNG


4. Channel protection over protection.

> Set the OCP hold-off time to 1000ms.

> You can set either non-revertive or auto-revertive.

140050hi16on2o4lmnpnau.png?Capture4.PNG

5. Channel protection. Protecting the client SAN

> Set to Bidirectional. This to make the upstream and downstream running in same latency.

> You can set either non-revertive or auto-revertive.


140055lia2g8155xcig2cy.png?Capture5.PNG

6. ASON protection.

> The ASON is come with the Bidirectional and auto-revertive. The channel protection can be reused.

140100y7v5yvwsa52di7g6.png?Capture6.PNG


7. 1:1 or 1:N SNCP.

> Set to Bidirectional and auto-revertive. This is to allow the bandwidth protection to be reused.

That's all, I welcome everyone to leave a message and exchange in the comment area!

Thank you！


Like (15) Dislike (0) Favorite(1) Share Report
Previous: looking to acquire an OSN 7500ii
Next: Ethernet port TAG attribute problem?
(0) (0)
11#
JosephLow
Created Jun 13, 2019 07:02:52

For the channel protection over protection, why do we need to set the OCP hold off time to 1000ms?
View more
  • x
  • convention：
(1) (0)
12#
asrul
Created Jun 13, 2019 07:14:01

Posted by JosephLow at 2019-06-13 07:02 For the channel protection over protection, why do we need to set the OCP hold off time to 1000ms?
It is because to avoid the "1st layer" protection and "2nd layer" protection execute in a same time. We set the hold-off time at the "1st layer" protection to allow the "2nd layer" protection executing switching first.
View more
  • x
  • convention：
(0) (0)
13#
CZQCHAI
Created Jun 13, 2019 07:32:04

Can you explain 'APS' in the 1. Line Protect part?
View more
  • x
  • convention：
(0) (0)
14#
asrul
Created Jun 13, 2019 07:38:19

Posted by CZQCHAI at 2019-06-13 07:32 Can you explain 'APS' in the 1. Line Protect part?
APS is carried over the first three bytes of the APS/PCC field of the ODUk overhead. Please note that there are 4 bytes. The fourth byte of the APS/PCC field is reserved. Eight independent APS channels are available to support protection at the ODUkP, the six ODUkT (TCM) levels and one level of ODUk SNC/I protection.
View more
  • x
  • convention：
(0) (0)
15#
limgsc
Created Jun 13, 2019 07:39:21

it is very useful knowlege for me . thank you very much
View more
  • x
  • convention：
(0) (0)
16#
SteveShim
Created Jun 13, 2019 07:41:41

Hi Asrul,

Thanks for the feedback.
My last enquiry.

How about the Channel Protection with the client SDH/SONET and ETH?
What is the best setup?
View more
  • x
  • convention：
(0) (0)
17#
asrul
Created Jun 13, 2019 07:52:12

Posted by SteveShim at 2019-06-13 07:41 Hi Asrul, Thanks for the feedback.My last enquiry.How about the Channel Protection with the client S ...
The channel protection that protecting the SDH/SONET but the SDH/SONET running the service of Ethernet and E1, why we can set to Unidirectional is because the ETH was converted to the STMn. The STMn don't have a latency. Due to no latency, in WDM we can set to Unidirectional
View more
  • x
  • convention：
(0) (0)
18#
SteveShim
Created Jun 13, 2019 23:08:39

Thanks for the Update Asrul. SNCP 1+1 Unidirectional and Bidirectional network scenario-2966367-1
View more
  • x
  • convention：
(0) (0)
19#
WanTH
Created Jun 14, 2019 00:37:37

Great sharing and helpful.
View more
  • x
  • convention：
(0) (0)
20#
Arban
Created Jun 14, 2019 03:22:53

very useful info
View more
  • x
  • convention：
123
Back to list

Comment

Advanced
B Color Image Link Quote Code Smilies
You need to log in to comment to the post Login | Register
Comment

Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following:
  • Politically sensitive content
  • Content concerning pornography, gambling, and drug abuse
  • Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy
Do not share your account and password with others. All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " User Agreement."

My Followers

Login and enjoy all the member benefits

Login
Huawei Website Support About Huawei Privacy User Agreement Terms of Use Cookies Cookie Settings
Huawei Enterprise Huawei Carrier Forum Training & Certification

Contact Us: e_online@huawei.com Copyright © 2022 Huawei Technologies Co., Ltd. All rights reserved.

APP

Block
Are you sure to block this user?
Users on your blacklist cannot comment on your post,cannot mention you, cannot send you private messages.
Reminder
Please bind your phone number to obtain invitation bonus.