Black Core Network Failover via Bonding Module
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Solution Overview
Problem
Current Black Core networks face challenges in achieving fault tolerance, high availability, and efficient failover mechanisms, leading to increased costs, latency, and vulnerability to eavesdropping due to the lack of infrastructure support and immature technology.
Innovation Solution
The implementation of cooperative signaling mechanisms, including CT-to-PT Disable, dynamic routing topology updates, and ICMP-DU, along with redundant HAIPE devices and self-healing network topologies, enables rapid failover and self-healing in Black Core networks, ensuring seamless operation and low latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If striping techniques are used to achieve fault tolerance in black core networks, then reliability is improved, but device complexity increases
Solution Approach 1:
The network is segmented into multiple independent paths (primary and secondary paths) that can operate autonomously. Each path is treated as a separate entity with its own routing and failover capabilities, allowing the system to achieve fault tolerance through division rather than complex centralized striping mechanisms.
Solution Approach 2:
Alternate paths and failover mechanisms are pre-configured and established before failures occur. The system prepares backup routing paths and failover policies in advance, so when a failure occurs, the transition to redundancy is immediate without requiring complex real-time decision-making or reconfiguration.
2Reliability
If striping techniques are used to achieve fault tolerance, then reliability is improved, but latency increases
Solution Approach 1:
Failover paths and routing decisions are predetermined and pre-configured. When a failure occurs, the system immediately switches to the pre-established alternate path without requiring complex real-time calculations or negotiations, thereby minimizing latency while maintaining fault tolerance.
3Reliability
If redundant components are used to achieve high availability, then reliability is improved, but device complexity increases
Solution Approach 1:
The failover mechanism is designed to be universal and applicable across multiple network devices and scenarios. The same failover policy and path selection logic can be applied to different types of network equipment and failure conditions, reducing the need for device-specific complex configurations and enabling high availability through standardized multi-functional approaches.
Data Source
AI summary
A black core network system and method, wherein the system includes a ciphertext network, a server having a bonding module and a plurality of network interfaces, a plurality of encryptor devices and one or more routers, wherein each router is connected through one or more of the server network interfaces to the server and through one or more encryptor devices to the ciphertext network. The server establishes, in the bonding module, a server gateway for each server network interface, selects a first network interface as primary link and a second server network interface as backup link, and sends routing metric information out through the primary link and the backup link, wherein sending includes sending metric information indicating that the cost of routing through the primary link is less than the cost of routing through the backup link. When the server receives, from one of the one or more routers, an indication that there is a link failure on the primary link, the server manipulates the server gateway for the second server network interface to direct traffic for the primary link out the second server network interface, wherein the second link becomes the new primary link and the server sends routing metric information out through the new primary link to the second router.