VLAN Segmentation for Multi-Chassis Network Element Redundancy
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Solution Overview
Problem
Network failures and traffic interference within multi-chassis network elements due to lack of effective redundancy and traffic management, leading to potential data loss and financial losses for network providers.
Innovation Solution
Deployment of multiple Virtual Local Area Networks (VLANs) within the internal control plane of network elements to provide redundancy and isolate traffic, ensuring that network traffic has multiple paths and is effectively managed to prevent interference between different applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple VLANs are deployed within the internal control plane, then redundancy and traffic isolation are improved, but device complexity increases
Solution Approach 1:
The internal control plane is segmented into multiple VLANs (Virtual Local Area Networks) that are logically separated and independently managed. Each VLAN handles specific traffic types or applications, providing redundancy and isolation. This segmentation allows the system to maintain multiple independent paths for traffic flow, so if one path fails, traffic can be routed through alternative VLANs without affecting overall system operation.
2Object-generated harmful factors
If multiple VLANs are deployed within the internal control plane, then traffic isolation is improved, but device complexity increases
Solution Approach 1:
Different applications and traffic types are segregated into separate VLANs, preventing traffic interference between them. Broadcast traffic from one application is contained within its designated VLAN and cannot inadvertently be switched to other components or applications. This logical separation eliminates the harmful interference effect while maintaining manageable complexity through standardized VLAN configuration.
3Reliability
If standby components are activated to compensate for failures, then reliability is improved, but response time increases
Solution Approach 1:
Multiple VLANs are pre-configured within the internal control plane before any failure occurs. The redundant paths and standby components are already in place and ready to immediately assume traffic flow when a failure is detected. This preliminary preparation eliminates the need for time-consuming reconfiguration or activation delays, allowing seamless failover and maintaining fast response times while ensuring high reliability.
Data Source
AI summary
A system, apparatus, and method for providing a plurality of internal VLANs within a networking element/node are described. Internal VLAN topologies are provisioned so that a particular VLAN(S) communicate traffic to corresponding applications. This segregation of internal traffic across a VLAN topology reduces the amount of interference between the traffic. Redundancy across the VLAN topology is provided so that traffic may be switched to another path in the event of a failure.