Router Aggregate Route Distribution via Default Gateway
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In current data communication networks, manually provisioning a next hop address for aggregate routes is time-consuming and error-prone, leading to potential network disruptions when the specified next hop device becomes unavailable, as it causes the entire aggregate route to be suspended, affecting multiple devices and routes.
Innovation Solution
A modified command language interface (CLI) for routers that allows users to specify aggregate routes using the 'inject route' command, eliminating the need for a next hop address and redistribution policy, enabling automatic distribution of aggregate routes without dependency on a specific next hop device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a next hop address is manually provisioned for aggregate routes, then the route distribution can be controlled, but the operator input time increases and errors occur when the next hop device becomes unavailable
Solution Approach 1:
The router automatically selects and uses the default gateway as the next hop for aggregate routes without requiring manual operator provisioning. The system serves itself by autonomously determining the next hop address from existing routing infrastructure, eliminating the need for operators to manually configure next hop addresses and reducing configuration time and errors.
Solution Approach 2:
The default gateway is used as a universal next hop for all aggregate routes within the routing domain, eliminating the need for route-specific next hop configurations. This multi-functional approach allows a single default gateway to serve multiple aggregate routing purposes, reducing operator input requirements while maintaining route distribution capability.
2Ease of operation
If a specific next hop device is specified for aggregate routes, then the routing path is determined, but the entire aggregate route is suspended when the next hop device becomes unavailable
Solution Approach 1:
The aggregate route functionality is segmented from the specific next hop device dependency. By using the default gateway as an intermediary rather than directly tying aggregate routes to specific next hop devices, the system allows individual next hop devices to fail without suspending the entire aggregate route. Other routes within the aggregate can continue to function through alternative paths.
Solution Approach 2:
The default gateway acts as an intermediary between the aggregate route advertisement and the actual next hop devices. This intermediary layer decouples the aggregate route from specific next hop device availability, allowing the route to remain active even when individual next hop devices become unavailable, thereby improving route continuity.
3Measurement precision
If manual provisioning of next hop addresses is required, then routing control is precise, but the process becomes time-consuming and error-prone
Solution Approach 1:
The router automatically determines the next hop address for aggregate routes by querying its own routing table for the default gateway, eliminating the need for manual operator input. This self-service mechanism maintains routing control precision by using the router's existing routing information while dramatically improving productivity by removing manual configuration steps.
4Reliability
If redistribution policies are configured for aggregate routes, then route distribution is controlled, but the configuration complexity increases
Solution Approach 1:
The next hop address specification is extracted from the aggregate route configuration command, removing the source of complexity. By separating the aggregate route advertisement from the next hop address provisioning, the system maintains route distribution control through the default gateway mechanism while eliminating the need for complex redistribution policies and configuration statements.
Data Source
AI summary
A method for distributing aggregate routes that does not require a user to provision a next hop address or specify a redistribution policy is presented. Embodiments of the method utilize a modified command language interface (CLI) with a network device (e.g., router). In the various embodiments, the modified CLI is well-suited for use in routers that utilize interior gateway protocols such as open shortest path first (OSPF), routing information protocol (RIP), integrated intermediate system-to-intermediate system (ISIS), interior gateway routing protocol (IGRP), enhanced interior gateway routing protocol (EIGRP), and NetWare link services protocol (NLSP). In one or more embodiments, the invention has the advantage of providing an easier means of specifying aggregate routes, which saves user time and is less error-prone.