Network traffic management in high bandwidth applications

Patent metadata

Field	Value
Publication number	US-9692703-B2
Application number	US-201514870186-A
Country	US
Kind code	B2
Filing date	Sep 30, 2015
Priority date	Sep 11, 2015
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A method for managing data communication traffic in a network routing device includes monitoring a bandwidth utilization of the network routing device and determining whether the bandwidth utilization exceeds a threshold. The method may additionally include receiving a first signal, the first signal having a first bandwidth, the first signal further having stream of packets. A second signal may be generated based on determining that the bandwidth utilization exceeds the threshold. The second signal may include the stream of packets. The second signal may additionally have a second bandwidth, where the second bandwidth is larger than the first bandwidth. The method may be continued by routing the second signal along a loopback path external to the network routing device. The method may then include extracting, based on determining that the bandwidth utilization is at or below the threshold, the stream of packets from the second signal for processing.

First claim

What is claimed is:

1. A method comprising:
monitoring a bandwidth utilization of a network routing device;
determining whether the bandwidth utilization exceeds a threshold;
receiving a first signal, the first signal having a first bandwidth, the first signal further having stream of packets;
generating, based on determining that the bandwidth utilization exceeds the threshold, a second signal, the second signal including the stream of packets, the second signal having a second bandwidth, wherein the second bandwidth is larger than the first bandwidth;
routing the second signal along a loopback path external to the network routing device; and
extracting, based on determining that the bandwidth utilization is at or below the threshold, the stream of packets from the second signal for processing.

2. The method of claim 1 , wherein the routing further comprises:
identifying an egress path from the network routing device, the egress path including an output interface of the network routing device and a first communication link having capacity to conduct the second signal;
transmitting the second signal along the egress path at a first time; and
receiving, at a second time subsequent to the first time, the second signal at an ingress path into the network routing device, the ingress path including an input interface of the network routing device and a second communication link, the second communication link coupled to the first communication link.

3. The method of claim 2 , wherein the first and second communication links are fiber optic cables.

4. The method of claim 2 , wherein the first and second communication links are coupled by a second network routing device.

5. The method of claim 1 , wherein the second signal is a high density signal.

6. The method of claim 1 , wherein the second signal includes a plurality of optical subcarriers to form a single optical channel.

7. The method of claim 6 , wherein the generating further includes synchronously modulating the plurality of optical subcarriers with the stream of packets to provide a given bandwidth during an operational cycle of the second signal.

Assignees

• IBM

Inventors

• Connor Samuel R
• Jackson Jonathan W
• Kuczynski Joseph

Classifications

• H04L45/22

  Alternate routing · CPC title

• H04L47/122 Primary

  by diverting traffic away from congested entities · CPC title

• H04L45/70

  Routing based on monitoring results · CPC title

• H04L43/16

  Threshold monitoring · CPC title

• H04L43/0894

  Packet rate · CPC title