Claims
- 1. A method for operating a transport network interface to carry Fibre-Channel traffic, said method comprising:
receiving a login frame from a first Fibre-Channel port, said login frame including a first buffer-to-buffer credit value for use in flow control; substituting a second buffer-to-buffer credit value for said first buffer-to-buffer credit value; and relaying said login frame including said second buffer-to-buffer credit value to a second Fibre-Channel port.
- 2. The method of claim 1 wherein said first Fibre-Channel port comprises a local Fibre-Channel port and said second Fibre-Channel port comprises a remote Fibre-Channel port reachable through a transport network.
- 3. The method of claim 1 wherein said first Fibre-Channel port comprises a remote Fibre-Channel port and said second Fibre-Channel port comprises a remote Fibre-Channel port reachable through a transport network.
- 4. The method of claim 1 wherein said login frame comprises a PLOGI frame.
- 5. The method of claim 1 wherein said login frame comprises a FLOGI frame.
- 6. The method of claim 1 wherein said login frame comprises an ELP frame.
- 7. The method of claim 1 wherein said login frame comprises an ACC frame.
- 8. The method of claim 1 wherein said second buffer-to-buffer credit value is greater than said first buffer-to-buffer credit value.
- 9. The method of claim 8 wherein said second buffer-to-buffer credit value is equal to said first buffer-to-buffer credit value plus a size of a buffer operated by said transport network interface used to buffer Fibre-Channel traffic prior to relaying.
- 10. Apparatus for operating a transport network interface to relay Fibre-Channel traffic, said apparatus comprising:
an ingress/egress block that receives a login frame from a first Fibre-Channel port, said login frame including a first buffer-to-buffer credit value for use in flow control, substitutes a second buffer-to-buffer credit value for said first buffer-to-buffer credit value, and relays said login frame including said second buffer-to-buffer credit value to a second Fibre-Channel port; and a buffer that buffers Fibre-Channel data from said second Fibre-Channel port prior to relaying to said first Fibre-Channel port.
- 11. The apparatus of claim 10 wherein said first Fibre-Channel port comprises a local Fibre-Channel port and said second Fibre-Channel port comprises a remote Fibre-Channel port reachable through a transport network.
- 12. The apparatus of claim 10 wherein said first Fibre-Channel port comprises a remote Fibre-Channel port and said second Fibre-Channel port comprises a remote Fibre-Channel port reachable through a transport network.
- 13. The apparatus of claim 10 wherein said login frame comprises a PLOGI frame.
- 14. The apparatus of claim 10 wherein said login frame comprises a FLOGI frame.
- 15. The apparatus of claim 10 wherein said login frame comprises an ELP frame.
- 16. The apparatus of claim 10 wherein said login frame comprises an ACC frame.
- 17. The apparatus of claim 10 wherein said second buffer-to-buffer credit value is greater than said first buffer-to-buffer credit value.
- 18. The apparatus of claim 17 wherein said second buffer-to-buffer credit value is equal to said first buffer-to-buffer credit value plus a size of said buffer.
- 19. Apparatus for operating a transport network interface to carry Fibre-Channel traffic, said apparatus comprising:
means for receiving a login frame from a first Fibre-Channel port, said login frame including a first buffer-to-buffer credit value for use in flow control; means for substituting a second buffer-to-buffer credit value for said first buffer-to-buffer credit value; and means for relaying said login frame including said second buffer-to-buffer credit value to a second Fibre-Channel port.
- 20. The apparatus of claim 19 wherein said first Fibre-Channel port comprises a local Fibre-Channel port and said second Fibre-Channel port comprises a remote Fibre-Channel port reachable through a transport network.
- 21. The apparatus of claim 18 wherein said first Fibre-Channel port comprises a remote Fibre-Channel port and said second Fibre-Channel port comprises a remote Fibre-Channel port reachable through a transport network.
- 22. A computer program product for operating a transport network interface to carry Fibre-Channel traffic, said computer program product comprising:
code that receives a login frame from a first Fibre-Channel port, said login frame including a first buffer-to-buffer credit value for use in flow control; code that substitutes a second buffer-to-buffer credit value for said first buffer-to-buffer credit value; code that relays said login frame including said second buffer-to-buffer credit value to a second Fibre-Channel port; and a computer-readable storage medium that stores the codes.
STATEMENT OF RELATED APPLICATIONS
[0001] The present invention is related to the subject matter of U.S. patent application Ser. No. 10/166,213, entitled “INTELLIGENT FLOW CONTROL MANAGEMENT TO EXTEND FIBRE-CHANNEL LINK FULL PERFORMANCE RANGE,” filed on Jun. 10, 2002, the contents of which are herein incorporated by reference for all purposes in their entirety.
[0002] The present invention is related to the subject matter of U.S. patent application Ser. No. 10/366,867, entitled “FIBRE-CHANNEL OVER-SUBSCRIPTION OVER DWDM/SONET/SDH OPTICAL TRANSPORT SYSTEMS,” filed on Feb. 13, 2003, the contents of which are herein incorporated by reference for all purposes in their entirety.
[0003] The present invention is related to the subject matter of U.S. patent application Ser. No. 10/305,640, entitled “MULTIPROTOCOL ENCAPSULATION SYSTEM AND METHOD,” filed on Nov. 27, 2002, the contents of which are herein incorporated by reference for all purposes in their entirety.
[0004] The present invention is related to the subject matter of the co-filed U.S. patent application No.______, entitled “APPARATUS AND METHOD FOR ENABLING INTELLIGENT FIBRE-CHANNEL CONNECTIVITY OVER TRANSPORT,” the contents of which are herein incorporated by reference for all purposes in their entirety.