A network and service framework for Ethernet load network management

Abstract

This invention discloses one Ethernet load network and business rack, which sends network to manage operator key points by Ethernet PBT or Minim technique, and which comprises the following parts: Ethernet physical layer; PBT channel layer and customer business layer of three independent logic layers. This invention also provides one method to form user business end to end in network rack.

Description

technical field [0001] The present invention relates to the management field of Ethernet MinM (Mac in Mac) and operator's backbone transmission (PBT, ProviderBackbone Transport) network, particularly relate to the carrier network management of the operator's backbone transmission network based on Ethernet MinM and PBT technology Network and business architecture. Background technique [0002] MinM (Mac in Mac) is a carrier backbone bridge transmission technology defined by the IEEE 802.1ah standard. Its main idea is to establish a virtual bidirectional tunnel between two provider edge (PE, Provider Edge) devices in the carrier network. , use the stable Mac address and virtual local area network (VLAN, Virtual Local Area Network) in the operator's network to identify the two-way tunnel and use it as the key value of the forwarding table of the Ethernet frame, thereby fundamentally eliminating the instability of the client-side network. impact on business networks. [0003] ...

AI Technical Summary

Problems solved by technology

[0017] Defect 1: In a large-scale network such as the national backbone / provincial backbone, the forwarding table becomes larger due to the large number of network nodes, which also leads to increased unpredictability of network behavior, coupled with immature Ethernet OAM technology and network self-healing capabilities Due to objective reasons such as weak performance, MinM cannot shake the dominance of Multiprotocol Label Switch (MPLS) in large-scale network applications.

[0032] Disadvantage 1: PBT Tunnel is composed of Singleton PBT FDFr in each single-station equipment, rather than end-to-end FDFr and Matrix FDFr in a single station, which does not reflect the end-to-end of PBT channel very well. End (E2E) connection relationship

Such a framework is difficult to calculate the end-to-end path of the PBT channel at the network management level. At the same time, it is somewhat different from the Flow Domain part of the relevant Ethernet standards in MEF and ITU-T.

[0033] Disadvantage 2: User layer services are modeled using different Flow DomainFragments in the first and last PEs of the PBT tunnel, which does not reflect the end-to-end characteristics of user services in the PBT bearer network, making it difficult to calculate service routes

[0034] Disadvantage 3: The architecture does not reflect the protection relationship of PBT active and standby channels, making it difficult to calculate the working route of user services

[0035] Disadvantage 4: The logical hierarchical relationship between the customer service layer, the PBT channel layer and the Ethernet physical layer is not well reflected

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