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Advantages of MPLS-TP vs Carrier Ethernet.

Created: Jun 22, 2020 18:21:34Latest reply: Jun 22, 2020 19:26:33 1074 5 1 0 1
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Hi, 


Good afternoon!


I would like to know your opinion about the MPLS and MPLS-TP vs Carrier Ethernet technologies. Above all, know what the disadvantages are and why not choose carrier ethernet.


I would also like to know (if anyone knows the reason), why Huawei does NOT develop products for this type of technology, or if it is developing any type of product or solution?



Thank you!


Andrés


Featured Answers
wissal
MVE Created Jun 22, 2020 18:49:35

Hello,

Multiprotocol Label Switching Protocol Transport Profile (MPLS-TP) is a transport technique that integrates MPLS packet switching with traditional transport network features. MPLS-TP networks are poised to replace traditional transport networks in the future. MPLS-TP Operation, Administration, and Maintenance (MPLS-TP OAM) works on the MPLS-TP client layer. It can effectively detect, identify, and locate faults in the client layer and quickly switch traffic when links or nodes become defective. OAM is an important part of any plan to reduce network maintenance expenditures.

Purpose

Both networks and services are part of an ongoing process of transformation and integration. New services like triple play services, Next Generation Network (NGN) services, carrier Ethernet services, and Fiber-to-the-x (FTTx) services are constantly emerging from this process. Such services demand more investment and have higher OAM costs. They require state of the art QoS, full service access, and high levels of expansibility, reliability, and manageability of transport networks. Traditional transport network technologies such as Multi-Service Transfer Platform (MSTP), Synchronous Digital Hierarchy (SDH), or Wavelength Division Multiplexing (WDM) cannot meet these requirements because they lack a control plane. Unlike traditional technologies, MPLS-TP does meet these requirements because it can be used on next-generation transport networks that can process data packets, as well as on traditional transport networks.

Because traditional transport networks or Optical Transport Node (OTN) networks have high reliability and maintenance benchmarks, MPLS-TP must provide powerful OAM capabilities. MPLS-TP OAM provides the following functions:
  • Fault management

  • Performance monitoring

  • Triggering protection switching

Benefits

  • MPLS-TP OAM can rapidly detect link faults or monitor the connectivity of links, which helps measure network performance and minimizes OPEX.

  • If a link fault occurs, MPLS-TP OAM rapidly switches traffic to the standby link to restore services, which shortens the defect duration and improves network reliability.


A metro Ethernet network consists of the core layer, edge layer, aggregation layer, and access layer. The core layer is responsible for high-speed forwarding of service data. The edge and aggregation layers serve as the access points for various services. Services are forwarded through the BRAS, centralized PE, or aggregation node, based on the service type. The access layer is composed of DSLAMs, aggregation switches, AGs, and NodeBs for user access. Figure 9-2 shows a metro Ethernet network.

Figure 9-2 Metro Ethernet networking
imgDownload?uuid=8ca5fd5dd2364ff5947021b09c712118.png

The aggregation layer devices use IP/MPLS for service access and forwarding. Aggregation nodes connect to DSLAMs for individual service access. Enterprise services are aggregated at Layer 2 through a switch or are directly transmitted to aggregation nodes.

  • Digital Subscriber Line Access Multiplexer (DSLAM): accesses individual services through permanent virtual circuits (PVCs). A DSLAM adds VLAN or QinQ tags based on user and service types and directly connects to an aggregation node.

  • Switch: an access switch that aggregates Layer 2 enterprise services to an aggregation node.

  • Aggregation node: a distributed service node. An aggregation node distinguishes VLAN and QinQ user services, forwards Layer 3 or VPN services, or uses IP/MPLS to transparently transmit services to a BRAS or centralized PE.

  • Distribution node: aggregates metro Ethernet services. A distribution node terminates IP/MPLS and transparently transmits services to a BRAS or centralized PE.

  • BRAS: processes PPPoE dialup services of individual users.

  • PE: a centralized service node, which can also serve as a distribution node. A PE accesses services that must be aggregated and centrally processed, such as centralized L3VPN services.

  • P/PE: a core forwarding node or backbone edge node. A P/PE rapidly forwards services to the backbone network.

Thanks

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UY_CDM
UY_CDM Created Jun 22, 2020 19:00:17 (0) (0)
Hi @wissal,

Thank you very much for your quickly and complete response.
That is, disadvantages...

Thank you.

Your response have a lot of about MPLS, and MPLS-TP, but can you share with me, information why no must not use Carrier Ethernet?  

Recommended answer

Malik3000
MVE Created Jun 22, 2020 19:26:33

Hi dear,
MPLS and MPLS-TP work on ethernet but they are protocols contains enhancements for frame and packet forwarding , protection , carring multi services , vpn and others.
For example :-
1- MPLS uses label forwarding technology that makes forwarding for packets and frames faster .
2- MPLS uses PWE3 to emulate services and carry them on Ethernet like SDH, ATM , Frame relay...
3-MPLS uses protocols for service restor .
4-Many technologies used for VPN within MPLS labeling system .

Then MPLS-TP came to overcome the complexity and shortcome of MPLS by OAM that makes MPLS-TP faster and easier.

Pure ethernet lack these enhancement . I want to assure that signal sent by MPLS still ethernet but encapsulated on special fram for enhancements
Regards

View more
  • x
  • convention:

UY_CDM
UY_CDM Created Jun 22, 2020 19:34:19 (0) (0)
Thank you @Malik3000 for your response!

Regards.
Andrés  
All Answers
Hello User. We are reviviewing your questions and we will answer you shortly. Regards.
View more
  • x
  • convention:

Hello,

Multiprotocol Label Switching Protocol Transport Profile (MPLS-TP) is a transport technique that integrates MPLS packet switching with traditional transport network features. MPLS-TP networks are poised to replace traditional transport networks in the future. MPLS-TP Operation, Administration, and Maintenance (MPLS-TP OAM) works on the MPLS-TP client layer. It can effectively detect, identify, and locate faults in the client layer and quickly switch traffic when links or nodes become defective. OAM is an important part of any plan to reduce network maintenance expenditures.

Purpose

Both networks and services are part of an ongoing process of transformation and integration. New services like triple play services, Next Generation Network (NGN) services, carrier Ethernet services, and Fiber-to-the-x (FTTx) services are constantly emerging from this process. Such services demand more investment and have higher OAM costs. They require state of the art QoS, full service access, and high levels of expansibility, reliability, and manageability of transport networks. Traditional transport network technologies such as Multi-Service Transfer Platform (MSTP), Synchronous Digital Hierarchy (SDH), or Wavelength Division Multiplexing (WDM) cannot meet these requirements because they lack a control plane. Unlike traditional technologies, MPLS-TP does meet these requirements because it can be used on next-generation transport networks that can process data packets, as well as on traditional transport networks.

Because traditional transport networks or Optical Transport Node (OTN) networks have high reliability and maintenance benchmarks, MPLS-TP must provide powerful OAM capabilities. MPLS-TP OAM provides the following functions:
  • Fault management

  • Performance monitoring

  • Triggering protection switching

Benefits

  • MPLS-TP OAM can rapidly detect link faults or monitor the connectivity of links, which helps measure network performance and minimizes OPEX.

  • If a link fault occurs, MPLS-TP OAM rapidly switches traffic to the standby link to restore services, which shortens the defect duration and improves network reliability.


A metro Ethernet network consists of the core layer, edge layer, aggregation layer, and access layer. The core layer is responsible for high-speed forwarding of service data. The edge and aggregation layers serve as the access points for various services. Services are forwarded through the BRAS, centralized PE, or aggregation node, based on the service type. The access layer is composed of DSLAMs, aggregation switches, AGs, and NodeBs for user access. Figure 9-2 shows a metro Ethernet network.

Figure 9-2 Metro Ethernet networking
imgDownload?uuid=8ca5fd5dd2364ff5947021b09c712118.png

The aggregation layer devices use IP/MPLS for service access and forwarding. Aggregation nodes connect to DSLAMs for individual service access. Enterprise services are aggregated at Layer 2 through a switch or are directly transmitted to aggregation nodes.

  • Digital Subscriber Line Access Multiplexer (DSLAM): accesses individual services through permanent virtual circuits (PVCs). A DSLAM adds VLAN or QinQ tags based on user and service types and directly connects to an aggregation node.

  • Switch: an access switch that aggregates Layer 2 enterprise services to an aggregation node.

  • Aggregation node: a distributed service node. An aggregation node distinguishes VLAN and QinQ user services, forwards Layer 3 or VPN services, or uses IP/MPLS to transparently transmit services to a BRAS or centralized PE.

  • Distribution node: aggregates metro Ethernet services. A distribution node terminates IP/MPLS and transparently transmits services to a BRAS or centralized PE.

  • BRAS: processes PPPoE dialup services of individual users.

  • PE: a centralized service node, which can also serve as a distribution node. A PE accesses services that must be aggregated and centrally processed, such as centralized L3VPN services.

  • P/PE: a core forwarding node or backbone edge node. A P/PE rapidly forwards services to the backbone network.

Thanks

View more
  • x
  • convention:

UY_CDM
UY_CDM Created Jun 22, 2020 19:00:17 (0) (0)
Hi @wissal,

Thank you very much for your quickly and complete response.
That is, disadvantages...

Thank you.

Your response have a lot of about MPLS, and MPLS-TP, but can you share with me, information why no must not use Carrier Ethernet?  
Hi dear,
MPLS and MPLS-TP work on ethernet but they are protocols contains enhancements for frame and packet forwarding , protection , carring multi services , vpn and others.
For example :-
1- MPLS uses label forwarding technology that makes forwarding for packets and frames faster .
2- MPLS uses PWE3 to emulate services and carry them on Ethernet like SDH, ATM , Frame relay...
3-MPLS uses protocols for service restor .
4-Many technologies used for VPN within MPLS labeling system .

Then MPLS-TP came to overcome the complexity and shortcome of MPLS by OAM that makes MPLS-TP faster and easier.

Pure ethernet lack these enhancement . I want to assure that signal sent by MPLS still ethernet but encapsulated on special fram for enhancements
Regards

View more
  • x
  • convention:

UY_CDM
UY_CDM Created Jun 22, 2020 19:34:19 (0) (0)
Thank you @Malik3000 for your response!

Regards.
Andrés  

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