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Switch memory



Theremaybemultipletypesofmemoryintheswitch,suchasFlash(flashmemory),DRAM(dynamicmemory),etc.Thememoryisusedforstorageconfiguration,asadatabuffer,etc.

Theswitchusesthefollowingdifferenttypesofmemory,eachofwhichassiststheswitchindifferentways.

1.Read-onlymemory(ROM)

Thefunctionofread-onlymemory(ROM)intheswitchissimilartotheROMinthecomputer,andismainlyusedforsysteminitializationandotherfunctions.

Asthenameimplies,ROMisaread-onlymemory,andthecodestoredinitcannotbemodified.Ifyouwanttoupgrade,youneedtoreplacetheROMchip.

2.Flashmemory(Flash)

Flashmemory(Flash)isareadableandwritablememory,whichcanstillsavedataafterthesystemisrestartedorshutdown.

3.RandomAccessMemory(RAM)

RAMisalsoareadableandwritablememory,butitsstoredcontentwillbeclearedafterthesystemisrestartedorshutdown.

Inthepast,switchesusedstore-and-forwardorpass-throughswitchingfordataexchangeonnetworkports.Inthestore-and-forwardmode,whentheswitchreceivesaframe,itstoresthedatainthememoryuntilthecompleteframeisreceived.

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