RIFT Protocol Logical Layering via Topology and Instance IDs
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Solution Overview
Problem
The RIFT protocol does not support logical layering of networks based on multiple topologies or instances, leading to suboptimal utilization and allocation of communication resources.
Innovation Solution
A method and device for network logical layering using Link Information Element (LIE) and Topology Information Element (TIE) packets to determine and layer networks based on topology and instance IDs, enabling logical layering based on multiple topologies and instances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RIFT protocol is used for routing in fat tree topology, then routing efficiency and loop prevention are improved, but the protocol cannot support logical layering based on multiple topologies or instances
Solution Approach 1:
The patent segments the network into multiple logical topologies and instances by introducing topology ID and instance ID fields into LIE and TIE packets. This allows the single RIFT protocol to be divided into multiple logical layers, enabling simultaneous support for different topologies and instances while maintaining the original routing efficiency of each segment.
Solution Approach 2:
The patent adds new dimensions to the RIFT protocol by introducing topology ID and instance ID as additional identification layers. These new dimensions allow packets to be routed not only based on traditional network addresses but also based on topology and instance identifiers, enabling logical layering without compromising the base routing functionality.
2Device complexity
If traditional routing protocols are used, then protocol simplicity is maintained, but communication resource allocation and utilization are suboptimal
Solution Approach 1:
The patent makes the RIFT protocol universal by enabling it to handle multiple topologies and instances through the addition of ID fields. A single protocol instance can now serve multiple logical functions, allowing efficient resource allocation across different topologies and instances while maintaining protocol simplicity through standardized packet structures.
Data Source
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AI summary
An embodiment of the present invention provides an RIFT protocol-based network logic layering method, a device, a network device and a storage medium. By exchanging link information element (LIE) messages and topology information element (TIE) messages with other devices, the network device can enable other devices in the network to know the topology supported by the device and the neighbor information and Metric information of the device under the topology. The device can also know the topology supported by other devices in the network and the neighbor information and Metric information of other devices under the corresponding topology, so that the device calculates a topology route corresponding to the topology supported by the device.