Fibre channel arbitrated loop bufferless switch circuitry to...

Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S403000, C370S411000, C370S462000, C370S535000

Reexamination Certificate

active

07450500

ABSTRACT:
A switch, switched architecture and process for transferring data through an FCAL switch is disclosed. The switch uses multiple switch control circuits each coupled to one FCAL network and all connected to a crossbar switch. The switch control circuits are coupled together by a protocol bus for coordination purposes. Local conversations can occur on each FCAL loop and crossing conversations through the switch can occur concurrently. The OPN primitive is used to establish the connection before any data is transferred thereby eliminating the need for buffer memory in the switch control circuits. The destination address of each OPN is used to address a lookup table in each switch control circuit to determine if the destination node is local. If not, the destination is looked up and a connection request made on the protocol bus. If the remote port is not busy, it sends a reply which causes both ports to establish a data path through the backplane crossbar switch.

REFERENCES:
patent: 4821034 (1989-04-01), Anderson et al.
patent: 5502719 (1996-03-01), Grant et al.
patent: 5619497 (1997-04-01), Gallagher et al.
patent: 5689644 (1997-11-01), Chou et al.
patent: 5754549 (1998-05-01), DeFoster et al.
patent: 5831985 (1998-11-01), Sandorfi
patent: 5848251 (1998-12-01), Lomilino et al.
patent: 5887146 (1999-03-01), Baxter et al.
patent: 6118776 (2000-09-01), Berman
patent: 6324181 (2001-11-01), Wong et al.
patent: 6396832 (2002-05-01), Kranzler
patent: 0 719 011 (1996-06-01), None
Rickard, W., “Fibre Channel as a Network Backbone,” Weston '94, Western Electronic Show and Convention, Anaheim; Sep. 27-29, 1994; pp. 653-659.
Ravindran, G., et al., “A Comparison of Blocking and Non-Blocking Packet Switching Techniques in Hierarchical Ring Networks,” IEICE Transactions on Information and Systems, vol. E79-D, No. 8; Aug. 1996, pp. 1130-1138.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Fibre channel arbitrated loop bufferless switch circuitry to... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fibre channel arbitrated loop bufferless switch circuitry to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fibre channel arbitrated loop bufferless switch circuitry to... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4030941

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.