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Non-Blocking Internet Backbone Network無阻擋的骨幹網路設計和具有質量保証的路徑算法

Summary

IP (Internet Protocol) networks are traditionally designed to support a best-effort service, with no guarantees on the reliable and timely delivery of packets. With the migration of ubiquitous network to support real-time applications such as voice onto IP-based platforms, the existing IP networks need to provide Quality-of-Service (QoS) levels that end-users are accustomed to.

This invention introduces a route computation algorithm and a load-distribution scheme for computed routes. This results in a non-blocking backbone network, which can always accommodate a new service level agreement (SLA) as long as the source and destination routers have capacity to set up the flow. The call admission control (CAC) in such a non-blocking backbone network is localized and greatly simplified. When comparing to the conventional network, this non-blocking backbone network also allows hard QoS to be supported in large scale and cross domains in the Internet.

Technology Benefits

1. QoS can be supported in a large scale and cross domains in the Internet
2. Call admission control is simplified

Technology Application

- Internet planning with QoS support
- Computation algorithm of Routers

Supplementary Information

Patent Number: US7656886B2
Application Number: US2005243117A
Inventor: Lea, Chin-Tau | Chu, Jian
Priority Date: 7 Feb 2005
Priority Number: US7656886B2
Application Date: 3 Oct 2005
Publication Date: 2 Feb 2010
IPC Current: H04L001256
US Class: 370401 | 370238
Title: Non-blocking internet backbone network
Usefulness: Non-blocking internet backbone network
Summary: For establishing service level agreement in network.
Novelty: Service level agreement establishing method for network, involves adding service level agreement to network without checking capacity of internal links of predetermined paths

Industry

ICT/Telecom

Sub Category

Telecommunication

Application Date

3 Oct 2005

Application No.

US 11/243117

Patent Information

US 7656886

ID No.

TTC.PA.249S

Country/Region

Hong Kong