US 9,509,807 B2 · Control frame handling by a provider backbone bridge

Abstract

A method and Bridge in a Provider Backbone Bridge Network, PBBN, for enabling frames from a Higher Layer Entity attached alternatively to a Provider Instance Port on an I-Component of a Backbone Edge Bridge or to a Customer Backbone Port on a B-Component of the Backbone Edge Bridge, to reach an intended entity in the PBBN. A Virtual Instance Port Service Access Point, VIP SAP, is configured for every VIP and every Higher Layer Entity configured on the I-Component. An Enhanced VIP Port Connectivity function utilizes the VIP SAP to tunnel customer-initiated Layer 2 Control Protocols, L2CPs. A Special Multiplexed SAP handles the frames of the Higher Layer Entity, and is assigned an I-SID value that is universally recognized to identify the L2CPs. A Service Instance Multiplex Entity utilizes the Special Multiplexed SAP to transfer frames between the Provider Instance Port or the Customer Backbone Port and the entity inside the PBBN.

Claims12

Dependent claims

A method of handling control frames in a Provider Backbone Bridge in a Provider Backbone Bridge Network (PBBN), the method comprising:

receiving frames of a first Higher Layer Entity from a Provider Instance Port (PIP) on an I-Component of a Backbone Edge Bridge, the frames being addressed to an entity in the PBBN;
encapsulating the frames of the first Higher Layer Entity utilizing a Virtual Instance Port (VIP) Service Access Point (SAP) configured for the first Higher Layer Entity;
providing multiple copies of each frame, wherein one copy is provided for a VIP Enhanced Internal Sublayer Service (EISS), and one copy is provided for each Higher Layer Entity configured on the I-Component;
identifying frames having an assigned Service Instance ID (I-SID) value that identifies them as Layer 2 Control Protocols (L2CPs);
and
transferring the frames identified as having an assigned I-SID value identifying them as L2CPs to the entity in the PBBN.

3 more elements

A Bridge in a Provider Backbone Bridge Network (PBBN) for handling control frames, the Bridge comprising:

a frame receiver configured to receive frames of a first Higher Layer Entity from a Provider Instance Port (PIP) on an I-Component of a Backbone Edge Bridge, the frames being addressed to an entity in the PBBN;
a Virtual Instance Port (VIP) Service Access Point (SAP) configured for the first Higher Layer Entity, the VIP SAP being configured to encapsulate the frames of the first Higher Layer Entity;
a frame copier configured to provide multiple copies of each frame, wherein one copy is provided for a VIP Enhanced Internal Sublayer Service (EISS), and one copy is provided for each Higher Layer Entity configured on the I-Component;
and
a frame transmitter configured to:
identify frames having an assigned Service Instance ID (I-SID) value that identifies them as Layer 2 Control Protocols (L2CPs);
and
transfer the frames identified as having an assigned I-SID value identifying them as L2CPs to the entity in the PBBN.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/803,695Filed 20 Jul 2015 · continuation

Priority

12 Jan 2007

Published

US 2015/0365504 A117 Dec 2015

Granted

29 Nov 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04L 69/18
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
C04B 28/02
Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic…
C04B 40/0039
Aspects relating to the mixing step of the mortar preparation: premixtures of ingredients
H04L 12/4625
LAN interconnection over a bridge based backbone: single bridge functionality, e.g. connection of two networks over a single bridge

Family

Application60/884,817Us provisional application · filed 12 Jan 2007

PCT/IB2007/003992Parent of this continuation · filed 18 Dec 2007

Application13/233,110Parent of this continuation · filed 15 Sep 2011

US 8,036,142 B2Parent of this continuation · filed 11 Oct 2011

Application13/856,576Parent of this continuation · filed 4 Apr 2013

US 8,437,279 B2Parent of this continuation · filed 7 May 2013

US 2015/0365504 A1Pre-grant publication · published 17 Dec 2015

US 9,124,468 B2Parent of this continuation

Application12/440,868Parent of this continuation

US 2010/0034118 A1Published application

US 2012/0002572 A1Published application

US 2013/0201872 A1Published application

US 9,509,807 B2This patent

From the US filing history. Foreign family members aren’t listed.

Control frame handling by a provider backbone bridge

Life of this patent

Control frame handling by a provider backbone bridge

Life of this patent

Abstract

Claims12