Treść książki
Przejdź do opcji czytnikaPrzejdź do nawigacjiPrzejdź do informacjiPrzejdź do stopki
DynamicRoutingProtocols
topologytable,
routingtable.
NeighborTableisatableinwhichtherouterstoresinformationabouttheadjacentrouters
(neighbors).Routersthatareindirectlyconnectedtothisrouterviaanotherrouterarenot
registeredinthistable,i.e.theyarenotconsideredneighbors.
Topologytablestoresroutesdeterminedfromroutingtableinformationobtainedfrom
neighbors.Doesn’tstorealloftheroutes,justtheonesthatweredeterminedbyEIGRP.
Routingtablestoresinformationaboutbestroutestothedestinationinquestion.This
informationisobtainedfromthetopologytable.
Theprimarycost-effectiverouteinEIGRPistheroutechosenasthemainrouteleading
toagivendestinationnetwork.TheDUALalgorithmdeterminesitbasedonthe
informationcontainedintheneighborandtopologytablesandthenstoresitintherouting
table.Therecanbeuptofourmainroutesforeachdestination.
FeasibleSuccessorRouteinEIGRPisaroutewhichwillbeusedincaseofemergency
oftheprimaryroute.Itisestablishedatthesametimeastheprimaryroute,butisonly
storedinthetopologytable.Theroutercanstoreseveralalternateroutesinthetopology
table.
2.5.3
BasicConfigurationandVerificationCommands
ToperformabasicconfigurationoftheEIGRPprotocolontherouter,wewillusethe
followingIOScommands:
activationofEIGRPconfigurationmodeonastand-alonesystem:
routereigrp<autonomous_system_no.>
where:<autonomous-system-no.>isa16-bitnumberbetween1and65535,
theinclusionofnetworks(orsubnets)inEIGRProutingupdatesisperformed
usingthecommand:
network<network-address>
theinclusionofclasslessnetworks(orclasslesssubnets)inEIGRProuting
updatesisperformedbyusingthecommand:
network<network-address><wildcard-mask>
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