Seamless Protocol

Hgh-vlblty Smlss Rdndncy (HSR) s ntwrk prtcl fr thrnt tht prvds smlss flvr gnst flr f ny sngl ntwrk cmpnnt. PRP nd HSR r ndpndnt f th pplctn-prtcl nd cn b sd by mst ndstrl thrnt prtcls n th C 61784 st. HSR ds nt cvr th flr f nd nds, bt rdndnt nds cn b cnnctd v HSR. HSR nds hv tw prts nd ct s brdg, whch llws rrngng thm nt rng r mshd strctr wtht ddctd swtchs. Ths s n cntrst t th cmpnn stndrd Prlll Rdndncy Prtcl (PRP), wth whch HSR shrs th prtng prncpl. PRP nd HSR r stndrdzd by th C 62439-3:2016. PRP nd HSR r std fr pplctns tht rqst hgh vlblty nd shrt swtchvr tm. Fr sch pplctns, th rcvry tm f cmmnly sd prtcls sch s th Rpd Spnnng Tr Prtcl (RSTP) s t lng. t hs bn dptd fr lctrcl sbsttn tmtn n th frmwrk f C 61850. t s sd n synchrnzd drvs (.g. n prntng mchns) nd hgh pwr nvrtrs. Th cst f HSR s tht nds rqr hrdwr spprt (FPG r SC) t frwrd r dscrd frms wthn mcrscnds. Ths cst s cmpnstd bcs n thrnt swtchs r rqrd. Hrdwr spprt s nyhw ndd whn th nd spprts clck synchrnztn r scrty.