1Please wait, CIS 185 will begin shortly (5:30pm)here will be no so!n" !ntil #lass begins$ I will "o a so!n" #he#% at the beginning o& #lass$CIS 185 CC'P ()*++I,(P Part 1(i#% ,ra-ianiCabrillo Collegegra-iani.#abrillo$e"!/ast *p"ate": 0all 10103+I,(P Part 1(e2iew'eighbor 3"4a#en#ies an" +I,(P (eliability+I,(P 5etri#6*3/7asi# +I,(P Con&ig!rationPassi2e8Inter&a#esS!mmari-ation6e&a!lt (o!te95aterials7oo%:Implementing Cis#o IP (o!ting (()*+) 0o!n"ation /earning ,!i"e: 0o!n"ation learning &or the ()*+ :918;01 +hat "o we remember abo!t +I,(P?>hat type o& proto#ol is +I,(P?6istan#e @e#tor>hat are the "e&a!lt metri#s !se" by +I,(P?7an"wi"th (slowest) an" 6elay (#!m!lati2e)>hat are the optional metri#s?(eliability an" /oa"'ote: 7oo% also state 5* b!t it is not a metri#$>hat algorithm is !se" to "etermine best path?6*3/ (6i&&!sing *p"ate 3lgorithm)=(e2iew o& +I,(P &rom CC'3+nhan#e" Interior ,ateway (o!ting Proto#ol (+I,(P) (elease" in 1;;1 with Cis#o I)S So&tware (elease ;$11$+nhan#ement o& Cis#oAs:Interior ,ateway (o!ting Proto#ol (I,(P)$ 7oth are Cis#o proprietary, operate only on: Cis#o ro!ters8(P an" +I,(P Pa#%et ypes>hat transport layer proto#ol "oes +I,(P !se?(eliable ransport Proto#ol ((P) >hy "oesnAt +I,(P !se *6P or CP? ;Proto#ol86epen"ent 5o"!les+I,(P !ses protocol-dependent modules (PDM). to ro!te "i&&erent proto#ols, in#l!"ing:IP29IP2:Internetwor% Pa#%et +hat are Hello packets !se" &or by +I,(P to:Discover neighbors (sometimes #alle" neighborships)Form adjacencies with those neighbors>hat is the m!lti#ast a""ress? Dint: 119$0$0$?119$0$0$10 3re these sent as reliable or !nreliable "eli2er?*nreliable "eli2ery C 'o 3CEs ret!rne"11Dello Proto#olNM! "ink that are!ll other serial inter#aces and "!Ns11Dello Proto#ol6e&a!lt hol" time 8 $ times the hello interval I& the hol" time e%pires:+I,(P "e#lares the ro!te as "own6*3/ sear#hes &or a new path in the topology table or by sen"ing o!t F!eries$It is ') a!tomati#ally a"4!ste" i& Dello Inter2al is mo"i&ie"$NM! "ink that are!ll other serial inter#aces and "!Ns13&pdate Packets ' (eliable Deliver)!ckno*ledgment (!+,) Packets ' &nreliable Deliver)Sent when reliable "eli2ery is !se" (!p"ate, F!ery, an" reply pa#%ets)$-./(P uses triggered updates+I,(P Pa#%et ypes C &pdate an" !ckno*ledgement Pa#%ets19+I,(P Pa#%et ypes C 0uer) an" (epl) Pa#%ets0ueries an" replies !se reliable "eli2ery (3#% ret!rne")$ *se" by D&!" when sear#hing &or networ%s an" other tas%s$156*3/: 3n Intro"!#tionJ. J. Garcia-Luna-Aceves1:6*3/: 3n Intro"!#tion (5ore laterG)$12r holdtime e%pires(34 +hecks 5opolog) table #or Feasible 6uccessor. .# no F671=S!mmary 8 (P Pa#%et ypesHellos ' .denti#ies neighbors*se" by the neighbor "is#o2ery an" re#o2ery pro#ess$ 5!lti#ast*nreliable "eli2ery!ckno*ledgements (!+,) ' !ckno*ledges receipt Dello pa#%ets with no "ata*ni#ast*nreliable "eli2ery&pdates ' !dvertises routesransmitte" only when ne#essary*ni#ast when sent to a spe#i&i# ro!ter5!lti#ast when sent to m!ltiple ro!ters(eliable "eli2ery0ueries ' !sk about a route (D&!")(eliable "eli2ery5!lti#ast or *ni#ast0ueries and (eplies ' !sk about a route and ans*er a 8uer) (D&!")(eliable "eli2ery(eplies: *ni#ast183"ministrati2e 6istan#e>e will "is#!ss 3"ministrati2e 6istan#e in more "etail in a later #hapter$"ater in this #hapter, yo! learn how to #on&ig!re +I,(P s!mmary ro!tes$'eighbor 3"4a#en#ies an" +I,(P (eliability1;10+on#iguring Hello .ntervals and Hold 5imesCon&ig!rable on a per8inter&a#e basis, ') per neighbor (/3's) 6oes not ha2e to mat#h with other +I,(P ro!ters to establish a"4a#en#ies$Router(config-if)# ip hello-interval eigrp as-number secondsRouter(config-if)# ip hold-time eigrp as-number seconds'eighbor able ContentsH (handle)H Internal n!mber !se" by the Cis#o I)S$ )r"er in whi#h a neighboring (peering) session was establishe" Starts with 0$!ddressHhe neighborAs IP a""ress$.nter#aceHhe o!tgoing inter&a#e on this ro!ter re#ei2ing hello pa#%ets &or the neighbor$Hold 5imeHhe ma5etri#: 6isplaying Inter&a#e @al!es%an&ose' show interface s!(!%erial!(! is up, line protocol is up)ardware is *+I,, %erial-escription. /ut to 0estasmanInternet address is 11213423#2$("!56+ 1$!! b7tes, 80 1$## Kbit, -9: !!!! usec, rel7 $$($$, load #3($$;output omitted'+I,(P band*idth !ses the minim!m ban"wi"th lin% represente" in 10= "i2i"e" by the %ilobits per se#on"$Show inter&a#es "isplays ban"wi"th in kilobits per second$+I,(P dela) 2al!e is the s!m o& "elays in tens of microseconds m!ltiplie" by 15:$Show inter&a#es "isplays "elay in microseconds$5etri# Cal#!lation0or a re2iew an" es flagge in outgoing upates=efault net&or>s accepte from incoming upatesEIGRP metric &eig-t B1C1: B*C': B3C1: B8C': B)C'EIGRP maDimum -opcount 1''EIGRP maDimum metric Eariance 1Reistri#uting7 eigrp 1/utomatic net&or> summariFation is in effectMaDimum pat-7 8Routing for 4et&or>s71'5'5'58"3'1'5'5'56"3'1'5'5'51*"3'1'5'5'51("3'1+*51(6535'Routing Information $ources7Gate&a2 =istanceGast !pate1'5'5'5++'''7'37'31'5'5'518 +'''7'37'31'5'5'5)+'''7'37111'5'5'516 +'''7'37'3=istance7 internal +' eDternal 1,'>hat are these telling !s?E 2al!es@arian#e, later6ire#tly #onne#te" networ%s'eighbors:=)!tp!tsR3# show ip eigrp topolog7?output omitte@P 1'5'5'5'"3': * successors: %= is *(616)( Eia 1'5'5'5+ (*(616)("*1(+6)(): $erial'"1 Eia 1'5'5'5) (*(616)("*1(+6)(): $erial'"'?output omitte@P 1,*51(5'5'"1(: 1 successors: %= is *1,*81( Eia 1'5'5'518 (*1,*81("*61('): $erial'"* Eia 1'5'5'516 (*31*1+*"*61('): $erial'"3successor#easible successorFeasible distance0easible "istan#e:i& this ro!ter was the s!##essor$ (eported Distance is less than Feasible distance:8)!tp!ts>hy "oes (3 show a thir" entry &or 10$0$0$0K30?>hy is (9 a non8&easible s!##essor?(eporte" "istan#e R 0easible "istan#ehere is a loop 2ia the lower (1919%ps) lin%GGGR3# show ip eigrp topolog7 all-linhat i& (1 re#ei2e" a pa#%et: 9A3.9:.=.9< It wo!l" be "is#ar"e" C ne2er loo%ing &or a s!pernet or "e&a!lt ro!te(egar"less o& ip classless or no ip classless #omman"Delps pre2ent any ro!ting loops between the e"ge an" ISP ro!ters$R1# show ip route 1+*51(651'5'"*8 is Earia#l2 su#nette: 3 su#nets: * mas>s- 11213421!2!(# is a summar7, !!.#$.!1, Dull!3 1+*51(651'58"3' is irectl2 connecte: $erial'"'"1= 1+*51(651'56"3' H+'"3)*368'I Eia 1+*51(651'5(: ''7887)(: $'"'"1 1,*51(5'5'"1( is Earia#l2 su#nette: 8 su#nets: 3 mas>s- 1@2132!2!(13 is a summar7, !!.#3.1!, Dull!3 1,*51(515'"*8 is irectl2 connecte: %astEt-ernet'"'= 1,*51(5*5'"*8 H+'"8')18)('I Eia 1,*51(535*: ''78)7'+: $'"'"'3 1,*51(535'"3' is irectl2 connecte: $erial'"'"'=1+*51(6515'"*8 H+'"*1,*81(I Eia 1+*51(651'5(: ''7887)): $erial'"'"1=;6isabling 3!tomati# S!mmari-ation/i%e (IP, +I,(P a!tomati#ally s!mmari-es at ma4or networ% bo!n"aries !sing the "e&a!lt auto-summar7 #omman"$R3# show ip route 1+*51(651'5'"*8 is Earia#l2 su#nette: 3 su#nets: * mas>s= 1+*51(651'5'"*8 is a summar2: '17'673): 4ull'3 1+*51(651'58"3' is irectl2 connecte: $erial'"'"'3 1+*51(651'56"3' is irectl2 connecte: $erial'"'"1- 1@2132!2!(13 B1!(1@#13C via 11213421!2$, !1.!4."!, %erial!(!(!3 1+*51(6515'"*8 is irectl2 connecte: %astEt-ernet'"'9A3.9:.