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- Wormhole_switching abstract "Wormhole flow control, also called wormhole switching or wormhole routing is a system of simple flow control in computer networking based on known fixed links. It is a subset of flow control methods called Flit-Buffer Flow Control.Switching is a more appropriate term than routing, as \"routing\" defines the route or path taken to reach the destination. The wormhole technique does not dictate the route to the destination but decides when the packet moves forward from a router. Cut-through switching, commonly called \"virtual cut-through,\" operates in a similar manner, the major difference being that cut-through flow control allocates buffers and channel bandwidth on a packet level, while wormhole flow control does this on the flit level. In most respects, wormhole is very similar to ATM or MPLS forwarding, with the exception that the cell does not have to be queued.Wormhole switching is sometimes called cut-through switching.Large network packets are broken into small pieces called FLITs (flow control digits). The first flit, called the header flit, holds information about this packet's route (namely the destination address) and sets up the routing behavior for all subsequent flits associated with the packet. The head flit is followed by zero or more body flits which contain the actual payload of data. The final flit, called the tail flit, performs some bookkeeping to close the connection between the two nodes.One thing special about wormhole flow control is the implementation of virtual channels:A virtual channel holds the state needed to coordinate the handling of the flits of a packet over a channel. At a minimum, this state identifies the output channel of the current node for the next hop of the route and the state of the virtual channel (idle, waiting for resources, or active). The virtual channel may also include pointers to the flits of the packet that are buffered on the current node and the number of flit buffers available on the next node.The name \"wormhole\" plays on the way packets are sent over the links: the address is so short that it can be translated before the message itself arrives. This allows the router to quickly set up the routing of the actual message and then \"bow out\" of the rest of the conversation. Since a packet is transmitted flit by flit, it may occupy several flit buffers along its path, creating a worm-like image.".
- Wormhole_switching wikiPageID "143256".
- Wormhole_switching wikiPageLength "7883".
- Wormhole_switching wikiPageOutDegree "25".
- Wormhole_switching wikiPageRevisionID "684885889".
- Wormhole_switching wikiPageWikiLink 16-bit.
- Wormhole_switching wikiPageWikiLink 8-bit.
- Wormhole_switching wikiPageWikiLink Asynchronous_Transfer_Mode.
- Wormhole_switching wikiPageWikiLink Category:Flow_control_(data).
- Wormhole_switching wikiPageWikiLink Category:Network_on_a_chip.
- Wormhole_switching wikiPageWikiLink Category:Routing.
- Wormhole_switching wikiPageWikiLink Central_processing_unit.
- Wormhole_switching wikiPageWikiLink Computer_network.
- Wormhole_switching wikiPageWikiLink Connection_Machine.
- Wormhole_switching wikiPageWikiLink Cut-through_switching.
- Wormhole_switching wikiPageWikiLink FLITs.
- Wormhole_switching wikiPageWikiLink Flow_control_(data).
- Wormhole_switching wikiPageWikiLink IEEE_1355.
- Wormhole_switching wikiPageWikiLink Integrated_circuit.
- Wormhole_switching wikiPageWikiLink Multiprocessing.
- Wormhole_switching wikiPageWikiLink Multiprotocol_Label_Switching.
- Wormhole_switching wikiPageWikiLink Network_delay.
- Wormhole_switching wikiPageWikiLink Network_on_a_chip.
- Wormhole_switching wikiPageWikiLink Queue_(abstract_data_type).
- Wormhole_switching wikiPageWikiLink SpaceWire.
- Wormhole_switching wikiPageWikiLink Store_and_forward.
- Wormhole_switching wikiPageWikiLink Virtual-Channel.
- Wormhole_switching wikiPageWikiLinkText "Wormhole switching".
- Wormhole_switching wikiPageWikiLinkText "wormhole switching".
- Wormhole_switching wikiPageUsesTemplate Template:Fact.
- Wormhole_switching wikiPageUsesTemplate Template:Reflist.
- Wormhole_switching wikiPageUsesTemplate Template:Rp.
- Wormhole_switching subject Category:Flow_control_(data).
- Wormhole_switching subject Category:Network_on_a_chip.
- Wormhole_switching subject Category:Routing.
- Wormhole_switching hypernym System.
- Wormhole_switching type Circuit.
- Wormhole_switching type Protocol.
- Wormhole_switching comment "Wormhole flow control, also called wormhole switching or wormhole routing is a system of simple flow control in computer networking based on known fixed links. It is a subset of flow control methods called Flit-Buffer Flow Control.Switching is a more appropriate term than routing, as \"routing\" defines the route or path taken to reach the destination. The wormhole technique does not dictate the route to the destination but decides when the packet moves forward from a router.".
- Wormhole_switching label "Wormhole switching".
- Wormhole_switching sameAs Q8036869.
- Wormhole_switching sameAs Conmutación_vermiforme.
- Wormhole_switching sameAs m.0122qk.
- Wormhole_switching sameAs Q8036869.
- Wormhole_switching wasDerivedFrom Wormhole_switching?oldid=684885889.
- Wormhole_switching isPrimaryTopicOf Wormhole_switching.