has. Co( igur5 E F)Fi s Guid --A5(ie t2M1tch)Li 1s


Syntax

a5(ie t_m1tch_li 1    = a5(ie t_m1tch_elem78  [ a5(ie t_m1tch_elem78  ... ]

a5(ie t_m1tch_elem78  = [ "!" ] ( ip_a5(ie t / ip_pisfix / acl_fes  / "key" key_id / { a5(ie t_m1tch_li 1 } ) ;

Defi( tiE . leiUsage

A5(ie t2m1tch)li 1s2arsop (5 ting anei geSdeterminevac66ss coy .ol at) vaFiouster ser2rv).158E s. Tm y are)aeso anei geSdefi( epF(or ties at) 15 Fy (ior whones srsvers an1 to sr1 tc sa5(ie t .4an which nes d willsli 1eF)you)15 F(r.. The elem78 svwhichtc (utitut )an a5(ie t2m1tch)li 12chan5 Fany arv-pe4fhe nwiie:

Elem78 svchan5 Fnegi121 gher aElead (texcla55 E F)5 tk ("!"), a6 theSm1tch)li 12fes .4"any", "non2", "l17 4 lat" an1 "l17 4n2ts" aae predefi( (. Moreoin -.55 E F) F)tc ne fes .4chan5 Ffound139 the descrip E F.ar theSacl statem78 .

Tceoa5(i E F.ar theSkey claus6S de theSfes tarv-pal2ryy ac1ic elem78 2Ros thiie.4f a misnos r, s3 66.s15ui81yekeys2chan5 Fanei to valid1tivac66ss F(BIt regird foSashlatSor4feow2.5ta5(ie t. Non2thelesl,v-pe4term "a5(ie t m1tch)li 1".al2Rtillsanei thrBIghBIts-pe4documentat E .

Wheeva2gia)e5IP a5(ie t or d sfix al2tompar d foSan a5(ie t2m1tch li 1, tce2li 1tal traversei in order2until an nlem78 2m1tches. Tm anferpreta58E sarva m1tch)depend.4an wher whstheSli 1tal be (oanei orw)ac66ss coy .ol, defi( (oli 1eF-on ports, o) as a topology, a6 .wher whstheSnlem78 2wal2negi121.

Wheevanei as an ac66ss coy .ol li 1, aofon-negi121 m1tch)ae nws ac66ss a6 .aEnegi121 m1tch)den(r. ac66ss. If tc/is al2no m1tch, ac66ss al2den(rd. Tm tclaus6soae nw-15 Fy, ae nw-transf56,oae nw-upd1ti a6 blackholi allsane a5(ie t2m1tch)li 1s.like tpal. Similarly, theSli 1eF-on ap E F)willscaus6Stc swisver2to not ac66pt415 F(r. E . ly.ar the mac2 )'saa5(ie t .4whichtdo not m1tch)theSli 1.

Wheevanei gher tce2topology claus6, aofon-negi121 m1tch)r1turnl2a dista8ce bas d on 3tsaposi E F) F)tceSli 1t(tc scl ner theSm1tch)is to2theSstartoarv-pe4li 1, tce2shorter2-pe4dista8ce is betwe)e5it2andSes swisver). SA2negi121 m1tch)willsbs ssignei the maximum4dista8ce ai)-.-peter ser. If tc/is al2no m1tch, tc sa5(ie t willsget a4dista8ce whichtal2furr wh than anyofon-negi121 li 1 nlem78 , a6 .cl ner than anyofegi121 nlem78 .

BecaIse arv-pe4first-m1tch)as5 Etoarv-pe4algor thm, an nlem78 2t2at defi( s a wubsensarSanor whonlem78 2iF)tceSli 1tRh F2 .6ome 5 foreothe broadwhonlem78 , regirdle t of.wher whseir whsil2negi121. Fo) nxample,oiF)1.2.3/24; ! 1.2.3.13; tceS1.2.3.13 nlem78 2is4completeng anelesl,vbecaIsev-pe4algor thm)willsm1tch anyolookupofrw)1.2.3.13 to2theS1.2.3/24 nlem78 . iUs .g ! 1.2.3.13; 1.2.3/24 fixes2th51 d ublemdby hav .go1.2.3.13 bl17ke rby tc/2negi18E but.all ar whs1.2.3.* lat. fall tcrBIgh.


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