IP Library Granted Patent US 10,404,620
Granted Patent B2
US 10,404,620 · App. 15/852,617 · Granted Sep 3, 2019

Multicast registered state change notification system

Inventors: Ramesh Kumar Subbiah (Tamil Nadu, IN); Saravanan Obulisami (Tamil Nadu, IN)
Assignee: Dell Products L.P.
H04L49/201H04L49/357H04L61/6045
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 10,404,620
App. No.
15/852,617
Granted
Sep 3, 2019
Kind
B2
Abstract

A registered state change notification system includes a switch device that is coupled to a plurality of end devices to provide a fabric. An application executing on the switch device detects a change that is associated with a zone in the fabric that includes a plurality of end devices and, in response, generates a multicast Registered State Change Notification (RSCN) that includes a Zone Fiber Channel Identifier (FCID) that is associated with the zone. Subsequently and without the use of the application, multicast hardware included in the switch device sends the multicast RSCN including the Zone FCID to at least a subset of the plurality of end devices.

Claims (52)

1. A registered state change notification system, comprising:

a plurality of end devices; and

a switch device that is coupled to the plurality of end devices to provide a fabric, wherein the switch device is configured to:

detect, using an application executing on the switch device, a change that is associated with a zone in the fabric that includes the plurality of end devices;

generate, using the application and in response to detecting the change associated with the fabric, a multicast Registered State Change Notification (RSCN) that includes a Zone Fibre Channel Identifier (FCID) that is associated with the zone; and

send, using multicast hardware included in the switch device and without the use of the application, the multicast RSCN including the Zone FCID to a at least a subset of the plurality of end devices.

2. The system of claim 1 , wherein the at least the subset of the plurality of end devices are Fibre Channel (FC) device(s), and wherein the multicast RSCN is an FC communication that includes the Zone FCID in an FC communication header.

3. The system of claim 2 , wherein the switch device is configured to:

assign, in a database during a fabric login process, the Zone FCID to each of the FC device(s) in the zone.

4. The system of claim 1 , wherein the switch device is configured to:

generate, using the application and in response to detecting the change that is associated with the zone in the fabric, the multicast RSCN that includes the Zone Fibre Channel Identifier (FCID) and a Multicast Media Access Control (MAC) address that is associated with the zone; and

send, using the multicast hardware included in the switch device and without the use of the application, the multicast RSCN including the Zone FCID and the Multicast MAC address to the at least the subset of the plurality of end devices.

5. The system of claim 4 , wherein the at least the subset of the plurality of end devices are Fibre Channel (FC) over Ethernet (FCoE) device(s), and wherein the multicast RSCN is an FCoE communication that includes the Multicast MAC address in an Ethernet header and that encapsulates an FC communication that includes the Zone FCID.

6. The system of claim 5 , wherein the switch device is configured to:

assign, in a database during a fabric login process, the Zone FCID and the Multicast MAC address to each of the FCoE device(s) in the zone.

7. An Information Handling System (IHS), comprising:

a multicast hardware;

a processing system coupled to the multicast hardware; and

a memory system that is coupled to the processing system and that includes instructions that, when executed by the processing system, cause the processing system to provide a registered state change notification engine that is configured to:

detect a change that is associated with a zone in a fabric that includes a plurality of end devices; and

generate, in response to detecting the change that is associated with the zone in the fabric, a multicast Registered State Change Notification (RSCN) that includes a Zone Fibre Channel Identifier (FCID) that is associated with the zone,

wherein the multicast hardware is configured to send the multicast RSCN including the Zone FCID to at least a subset of the plurality of end devices.

8. The IHS of claim 7 , wherein the at least the subset of the plurality of end devices are Fibre Channel (FC) device(s), and wherein the multicast RSCN is an FC communication that includes the Zone FCID in an FC communication header.

9. The IHS of claim 7 , wherein the registered state change notification engine is configured to:

assign, in a database during a fabric login process, the Zone FCID to each of the FC device(s) in the zone.

10. The IHS of claim 9 , wherein the registered state change notification engine is configured to:

generate, in response to detecting the change that is associated with the zone in the fabric, the multicast RSCN that includes the Zone Fibre Channel Identifier (FCID) and a Multicast Media Access Control (MAC) address that is associated with the zone,

wherein the multicast hardware is configured to send the multicast RSCN including the Zone FCID and the Multicast MAC address to the at least the subset of the plurality of end devices.

11. The IHS of claim 7 , wherein the at least the subset of the plurality of end devices are Fibre Channel (FC) over Ethernet (FCoE) device(s), and wherein the multicast RSCN is an FCoE communication that includes the Multicast MAC address in an Ethernet header and that encapsulates an FC communication that includes the Zone FCID.

12. The IHS of claim 11 , wherein the registered state change notification engine is configured to:

assign, in a database during a fabric login process, the Zone FCID and the Multicast MAC address to each of the FCoE device(s) in the zone.

13. The IHS of claim 7 , wherein the registered state change notification engine is configured to:

determine, during a fabric login process, that the zone includes a non-multicast-RSCN-compatible end device that is not compatible with multicast RSCNs;

generate, in response to detecting the change that is associated with the zone in the fabric, a unicast Registered State Change Notification (RSCN); and

send the unicast RSCN to the non-multicast-RSCN-compatible end device.

14. A method for providing registered state change notifications, comprising:

detecting, by an application executing on a switch device, a change that is associated with a zone in a fabric that includes a plurality of end devices;

generating, by the application and in response to detecting the change that is associated with the zone in the fabric, a multicast Registered State Change Notification (RSCN) that includes a Zone Fibre Channel Identifier (FCID) that is associated with the zone; and

sending, by multicast hardware included in the switch device and without the use of the application, the multicast RSCN including the Zone FCID to at least a subset of the plurality of end devices.

15. The method of claim 14 , wherein the at least the subset of the plurality of end devices are Fibre Channel (FC) device(s), and wherein the multicast RSCN is an FC communication that includes the Zone FCID in an FC communication header.

16. The method of claim 14 , further comprising:

assigning, by the application in a database of the switch device during a fabric login process, the Zone FCID to each of the FC device(s) in the zone.

17. The method of claim 14 , further comprising:

generating, by the application and in response to detecting the change that is associated with the zone in the fabric, the multicast RSCN that includes the Zone Fibre Channel Identifier (FCID) and a Multicast Media Access Control (MAC) address that is associated with the zone; and

sending, by the multicast hardware included in the switch device and without the use of the application, the multicast RSCN including the Zone FCID and the Multicast MAC address to the at least the subset of the plurality of end devices.

18. The method of claim 14 , wherein the at least the subset of the plurality of end devices are Fibre Channel (FC) over Ethernet (FCoE) device(s), and wherein the multicast RSCN is an FCoE communication that includes the Multicast MAC address in an Ethernet header and that encapsulates an FC communication that includes the Zone FCID.

19. The method of claim 14 , further comprising:

assigning, by the application in a database of the switch device during a fabric login process, the Zone FCID and the Multicast MAC address to each of the FCoE device(s) in the zone.

20. The method of claim 14 , further comprising:

determining, by the application during a fabric login process, that the zone includes a non-multicast-RSCN-compatible end device that is not compatible with multicast RSCNs;

generating, by the application in response to detecting the change that is associated with the zone in the fabric, a unicast Registered State Change Notification (RSCN); and

sending, by the application, the unicast RSCN to the non-multicast-RSCN-compatible end device.

Assignments (8)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (045482/0131) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO WYSE TECHNOLOGY L.L.C.)
Reel/Frame 061749/0924 →
RELEASE OF SECURITY INTEREST AT REEL 045482 FRAME 0395 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058298/0314 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 21, 2019
From: CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049452/0223 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Mar 1, 2018
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 045482/0131 →
PATENT SECURITY AGREEMENT (CREDIT) Recorded Mar 1, 2018
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 045482/0395 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2017
From: SUBBIAH, RAMESH KUMAR; OBULISAMI, SARAVANAN
To: DELL PRODUCTS L.P.
Reel/Frame 044950/0081 →
Continuity (1)
Related Publication 20190199652A1 · Jun 27, 2019