NVE Device Active-Active Access Configuration for Packet Transmission
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Solution Overview
Problem
The combination of overlay network and link aggregation technologies poses challenges in properly transmitting packets across networks, requiring efficient active-active access configuration and packet forwarding mechanisms to enhance bandwidth and robustness.
Innovation Solution
The solution involves generating and distributing an active-active access configuration information list to NVo3 network devices, allowing them to determine their active-active status, identify active-active groups, and select appropriate NVE devices for packet forwarding, using VNI and VLAN identifiers for encapsulation and decapsulation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If overlay network and link aggregation technologies are combined, then network bandwidth and robustness are improved, but packet transmission complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-distributing active-active access configuration information lists to all NVE devices before packet transmission occurs. Each NVE device obtains the configuration information list in advance, which contains mappings between VNIs and active-active groups, enabling devices to independently determine forwarding paths without real-time control signaling interactions, thus reducing transmission complexity while maintaining robustness
Solution Approach 2:
The patent introduces an intermediary mechanism through the active-active access configuration information list that mediates between the overlay network layer and link aggregation layer. This configuration list acts as a pre-computed forwarding table that simplifies the interaction complexity between NVE devices while enabling reliable packet transmission across the combined network architecture
2Productivity
If active-active access configuration is implemented, then packet forwarding efficiency is improved, but configuration and management complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the configuration management into distinct components: active-active groups, VNIs, and configuration information lists. Each NVE device maintains a localized configuration information list that is segmented by VNI and active-active group, allowing efficient packet forwarding through simple lookups while reducing overall configuration management complexity through modular organization
Solution Approach 2:
The patent uses copying by distributing identical configuration information lists to all NVE devices in the network. Each device receives a copy of the configuration list relevant to its operations, enabling independent and efficient packet forwarding decisions without requiring centralized real-time coordination, thus improving forwarding efficiency while keeping configuration management straightforward
Data Source
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AI summary
Embodiments of the present invention provide a packet transmission method and apparatus. The method includes: receiving, by a first NVE device, a first packet, where the first packet includes a first source address and a first destination address; obtaining, by the first NVE device, an active-active access configuration information list, where the list includes a first entry and a second entry, where the first entry includes an identifier of a first active-active group, a VNI, and an identifier of the first NVE device, and the second entry includes an identifier of a second active-active group, a VNI, and identifiers of at least two NVE devices that belong to the second active-active group; obtaining, by the first NVE device, the VNI according to the identifier of the first NVE device, and searching for at least one active-active group corresponding to the VNI, where the at least one active-active group includes the second active-active group, and selecting a second NVE device from the at least two NVE devices belonging to the second active-active group; and encapsulating, by the first NVE device, the first packet by using an identifier of the second NVE device and the VNI, and sending the encapsulated first packet. Correct transmission of a packet is implemented.