IP Library Granted Patent US 9,787,547
Granted Patent B2
US 9,787,547 · App. 14/666,305 · Granted Oct 10, 2017

Systems and method for discovering network topology

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,787,547
App. No.
14/666,305
Granted
Oct 10, 2017
Kind
B2
Abstract

A method for determining network topology of a provider network includes selecting a first network element, selecting a first port on the first network element, and iteratively performing connectivity validation tests using the first port, wherein each connectivity validation test is associated with a type of network element and yields a result that indicates whether a second port on a second network element of the associated type is connected to the first port. A system for discovering topology of a network, the system comprising a topology discovery engine in operable communication with a near network element and operable to identify a first port of a far network element that is connected to a second port of the near network element by remotely altering operation of the near network element to cause the second network element to respond in a manner that identifies the first port.

Claims (18)

1. A method for determining network topology of a provider network, the network including a plurality of network elements, the method comprising:

selecting a first network element;

selecting a first port on the first network element;

iteratively performing connectivity validation tests using the first port, wherein:

each connectivity validation test is associated with a type of network element and yields a result that indicates whether a second port on a second network element of the associated type is connected to the first port;

the associated type comprises at least one of a model, a manufacturer, and a vendor of the second network element; and

the result is based on evaluation of network communication data received at the first port as part of each connectivity validation test; and

in response to determining that the second port of the second network element is connected to the first port, storing connectivity data in memory, the connectivity data identifying at least the first port and the second port.

2. A system for determining network topology of a provider network including a plurality of network elements, the system comprising:

at least one processor;

memory, operatively connected to the at least one processor, and containing instructions that, when executed by the at least one processor, cause the system to perform a method, the method comprising:

selecting a first network element;

selecting a first port on the first network element;

iteratively performing connectivity validation tests using the first port, wherein:

each connectivity validation test is associated with a type of network element and yields a result that indicates whether a second port on a second network element of the associated type is connected to the first port, wherein the associated type comprises at least one of a model, a manufacturer, and a vendor of the second network element; and

the result is based on evaluation of network communication data received at the first port as part of each connectivity validation test; and

in response to determining that the second port of the second network element is connected to the first port, storing connectivity data in memory, the connectivity data identifying at least the first port and the second port.

3. The system of claim 2 wherein the network communication data is generated by the second network element.

Assignments (6)
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY (SECOND LIEN) Recorded Nov 4, 2024
From: LEVEL 3 COMMUNICATIONS, LLC; GLOBAL CROSSING TELECOMMUNICATIONS, INC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 069295/0749 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY (FIRST LIEN) Recorded Nov 4, 2024
From: LEVEL 3 COMMUNICATIONS, LLC; GLOBAL CROSSING TELECOMMUNICATIONS, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 069295/0858 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 31, 2015
From: VOIGT, JOSHUA D.; COSTON, CHRISTOPHER T.; FEUERSTEIN, ROBERT J.; YOUNGBLOOD, DANIEL; ROSENSTOCK, DAN
To: LEVEL 3 COMMUNICATIONS, INC.
Reel/Frame 035297/0488 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 31, 2015
From: KAU, TROY; BERNHARDT, GREG
To: LEVEL 3 COMMUNICATIONS, INC.
Reel/Frame 035297/0586 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 31, 2015
From: LEVEL 3 COMMUNICATIONS, INC.
To: LEVEL 3 COMMUNICATIONS, LLC
Reel/Frame 035297/0630 →
SECURITY AGREEMENT Recorded Mar 31, 2015
From: LEVEL 3 COMMUNICATIONS, INC.; ICG COMMUNICATIONS, INC.
To: MERRILL LYNCH CAPITAL CORPORATION, AS COLLATERAL AGENT
Reel/Frame 035338/0772 →