Multicast data distribution system

• US 6,408,000 B1
• Filed: 03/24/2000
• Issued: 06/18/2002
• Est. Priority Date: 03/24/2000
• Status: Active Grant

• Current Assignee: Securities Industry Automation Corporation (Intercontinental Exchange, Inc.)
• Original Assignee: Securities Industry Automation Corporation (Intercontinental Exchange, Inc.)
• Inventors: Lamberg, Michael J., Bach, Andrew F.
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): Tran, Maikhanh
• Application Number:
  US09/535,114
• Time in Patent Office: 816 Days
• Field of Search: 370/216, 370/219, 370/242, 370/244, 370/248, 370/252, 370/390, 370/389, 370/432, 714/2, 714/6, 714/11, 714/25
• US Class Current: 370/390
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 12/1877 Measures taken prior to transmission
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/16 Multipoint routing
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

A data distribution system having multicast packet replicators supplying redundant packets for distribution from redundant facilities is provided with an improvement wherein the redundant packets are provided via separate local area network interface ports and have different source addresses.

Claims

1. In a system for electronically distributing data via first and second redundant data distribution facilities, wherein there is provided replicating apparatus for receiving original data packets and providing an output of first and second data packets for distribution through said first and second data distribution facilities, the improvement wherein said replicating apparatus provides said first and second data packets via first and second network interfaces, such that said first and second data packets have different source address data corresponding to said first and second network interfaces, to allow reception of both said first and second data packets.

2. The improvement specified in claim 1 wherein said first and second data packets are provided via first and second source routers coupled to said first and second network interfaces.

3. The improvement specified in claim 2 wherein said first and second network interfaces comprise local area network interfaces.

4. The improvement specified in claim 2 wherein said replicating apparatus comprises multicast packet replicators.

5. The improvement specified in claim 3 wherein said replicating apparatus comprises multicast packet replicators.