Edge Device Multicast Traffic Optimization
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Solution Overview
Problem
Transmitting multicast traffic across geographically disparate sites in a network often results in undesirable delays and inefficient bandwidth usage due to the need for packets to traverse the network multiple times, increasing complexity and maintenance overhead.
Innovation Solution
Implementing Edge Devices that can join multicast groups and recognize local multicast sources within the same site, allowing for local forwarding of multicast traffic to reduce unnecessary network traversals and eliminate duplicate deliveries, thereby optimizing traffic flow and reducing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multicast traffic is transmitted across geographically disparate sites, then network coverage is improved, but transmission delay increases and bandwidth usage becomes inefficient
Solution Approach 1:
The patent implements local multicast forwarding at Edge Devices, allowing multicast traffic to be delivered locally within the same site without traversing the core network. This local quality approach optimizes the delivery path for local receivers while maintaining the ability to reach remote sites, thereby reducing transmission delay for local traffic while preserving overall network coverage.
2Area of stationary object
If multicast traffic is transmitted across geographically disparate sites, then network coverage is improved, but bandwidth usage efficiency deteriorates
Solution Approach 1:
The patent enables Edge Devices to forward multicast traffic locally to receivers in the same site, eliminating the need for traffic to traverse the core network and be re-forwarded back. This local delivery approach significantly improves bandwidth usage efficiency by preventing redundant transmissions while maintaining comprehensive network coverage through the multicast routing protocol.
3Adaptability or versatility
If multicast traffic traverses the network multiple times, then delivery to remote receivers is achieved, but system complexity increases
Solution Approach 1:
The patent implements local multicast forwarding at Edge Devices, which simplifies the network path for local traffic while maintaining the ability to deliver to remote receivers through standard multicast routing. This approach reduces system complexity by eliminating redundant network traversals and simplifying the forwarding logic, while preserving comprehensive delivery capability through the multicast protocol.
Data Source
AI summary
In one embodiment, a first Edge Device may join a multicast group via a multicast router, wherein the first Edge Device is in a local network and the multicast router is in a remote network. The first Edge Device may ascertain an existence of both a first multicast source in the local network and a second multicast source in the remote network. The first Edge Device may select the first multicast source as a multicast source from which to receive multicast data for the multicast group. The first Edge Device may notify the second multicast source in the remote network that the first Edge Device is not interested in receiving multicast data for the multicast group from the second multicast source.