Virtual Port Interconnection for Distributed Switching Systems
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Solution Overview
Problem
Conventional distributed switching and routing systems require external connections like fibers or cables to interconnect Virtual Devices (VDs), increasing user networking costs and complexity.
Innovation Solution
Implementing a method where each VD is configured with a virtual port that functions as a layer-3 port for interconnection, allowing routing information distribution and ARP learning to facilitate packet forwarding between VDs without external lines, using loopback ports or aggregated ports as virtual ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external lines (fibers or cables) are used to interconnect Virtual Devices, then reliable physical connection is achieved, but user networking cost and system complexity increase
Solution Approach 1:
The patent merges the interconnection function with the virtual device itself by introducing a virtual port that is integrated into the VD structure. This virtual port serves both as an internal component and as an external interface, eliminating the need for separate external connection lines while maintaining connection reliability and reducing networking complexity.
Solution Approach 2:
The virtual port acts as an intermediary between the virtual device and external networks. It provides a logical interface that mediates packet transmission between VDs without requiring physical external lines, thus achieving reliable interconnection while simplifying the networking infrastructure.
2Reliability
If external lines are used for VD interconnection, then physical connectivity is established, but user networking cost increases
Solution Approach 1:
The patent creates a virtual copy of the physical interface functionality through the virtual port. Instead of requiring actual physical cables and fibers, the system uses virtual representations that replicate the connectivity function, thereby eliminating the need for expensive external line infrastructure while maintaining physical connectivity through logical pathways.
Solution Approach 2:
The virtual port provides multi-functional capability, serving as both an internal virtual interface and an external network interface. This universality allows a single virtual port structure to fulfill multiple roles that traditionally would require separate physical components, reducing the quantity of networking infrastructure needed and lowering overall networking costs.
Data Source
AI summary
According to an example, a virtual port is configured for a current virtual device (VD) to interconnect the current VD with other VDs. The virtual port may be a layer 3 port and route learning and advertising of port information may be performed through the virtual port.