EVI Edge Device VLAN Resource Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Edge devices in Ethernet Virtual Interconnect (EVI) networks face limitations due to the need for a large number of VLAN IDs to support multiple EVI service instances, which exceeds their available VLAN resources, restricting the number of users that can access the network.
Innovation Solution
A method is introduced where a record associates a port number and VLAN ID with an EVI service instance ID, allowing the same VLAN ID to identify different EVI service instances based on the port number, thereby optimizing VLAN resource usage and enabling more efficient access to EVI networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large number of VLAN IDs are used to support multiple EVI service instances, then the number of supported service instances increases, but the available VLAN resources on edge devices are exceeded
Solution Approach 1:
The patent transitions from using only VLAN ID as a single-dimensional identifier to using a combination of port number and VLAN ID as a two-dimensional identifier. This dimensional expansion allows the same VLAN ID to be reused across different ports, effectively multiplying the number of distinguishable service instances without requiring additional VLAN IDs. The mapping relationship between (port number, VLAN ID) pairs and EVI service instance IDs enables this multi-dimensional identification approach.
2Quantity of substance
If the same VLAN ID is reused across different ports, then VLAN resource efficiency improves, but the complexity of mapping VLAN IDs to service instances increases
Solution Approach 1:
The patent implements preliminary configuration of mapping relationships between (port number, VLAN ID) pairs and EVI service instance IDs. This pre-establishment of mapping rules allows the edge device to efficiently determine the correct service instance without complex real-time calculations. The mapping table is configured in advance, enabling straightforward lookup operations when packets arrive, thus reducing operational complexity despite the reused VLAN IDs.
Data Source
AI summary
The present disclosure provides a method and an edge device for accessing an IP network. A record is pre-configured to associate and record a port number, a VLAN ID and an EVI service instance ID in the record. A first packet is received from a user side. A corresponding EVI service instance ID is searched in the record according to a port number of a port through which the first packet is received, and a VLAN ID of the first packet. The first packet is then forwarded in an EVI service instance corresponding to the EVI service instance ID.