07653066 cites 29 patents.

In network systems for transporting GFP-encapsulated FICON frames across a SONET/SDH transport network between FICON ports, the transport interfaces for the FICON ports operate to drop duplicate and out-of-order frames transported across the SONET/SDH network. The transmitting transport interface inserts a sequence number incremented with each FICON frame into said one or more transport frames, whereby the sequence number is used as an index for determining duplicate and out-of-order frames after transport over said SONET/SDH network. The receiving transport interface compares sequence numbers with each FICON frame to determine duplicate and out-of-order FICON frames, drops the duplicate and out-of-order FICON frames; and sends the balance of the compared FICON frames to the receiving FICON port.

Title
Method and apparatus for guaranteed in-order delivery for FICON over SONET/SDH transport
Application Number
10/981400
Publication Number
7653066 (B2)
Application Date
November 4, 2004
Publication Date
January 26, 2010
Inventor
Michael D Blair
Cary
NC, US
Marc Bennett
Austin
TX, US
Charles Allen Carriker Jr
Cary
NC, US
Thomas Eric Ryle
Raleigh
NC, US
John Diab
Santa Rosa
CA, US
Hitesh Amin
Petaluma
CA, US
Ganesh Sundaram
Rohnert Park
CA, US
Agent
Edell Shapiro & Finnan
Assignee
Cisco Technology
CA, US
IPC
H04L 12/28
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