2024年6月7日发(作者：)

IS-IS:

ConfiguringSingle-topologyISISinCiscoIOS-XR:

CRS-1#configure

CRS-1(config)#routerisis1

CRS-1(config-isis)#network49.0001.0001.0002.00

CRS-1(config-isis)#address-familyipv6unicast

CRS-1(config-isis-af)#single-topology

CRS-1(config-isis-if)#exit

CRS-1(config-isis)#interfacetenGigE0/0/0/2

CRS-1(config-isis-if)#address-familyipv4unicast

CRS-1(config-isis-if-af)#address-familyipv6unicast

CRS-1(config-isis-if-af)#exit

CRS-1(config-isis-if)exit

CRS-1(config-isis)#interfaceloopback1

CRS-1(config-isis-if)#address-famillyipv4unicast

CRS-1(config-isis-if-af)#address-familyipv6unicast

CRS-1(config-isis-if-af)#commit

VerifyingtheSingleTopologyModel:

CRS-1#showisisinstance1

CRS-1#showisisdatabasedetail

ConfiguringandVerifytheMultitopologyModel：

CRS-1#conft

CRS-1(config)#routerisis1

CRS-1(config-isis)#noaddress-familyipv6unicast

CRS-1(config-isis)#commit

CRS-1#showisisdatabasedetail

ConfiguringandVerifyInterfaceStates

CRS-1#configute

CRS-1(config)#routerisis1

CRS-1(config-isis)interfacetenGigE0/0/0/2

CRS-1(config-isis-if)#?

noNegateacommandorsetitsdefaults

Passive

Shutdown

Suppressed

CRS-1(config-isis-if)#suppressed

CRS-1(config-isis-if)#end

VerficationISISinterfaceStates:

Donotestablishadjacenciesoverthisinterface

ShutdownIS-ISonthisinterface

Donotadvertiseconnectedprefixesofthisinterface

CRS-1#showisisinterfacetenGigE0/0/0/2

ConfiguringIS-ISNSFandIS-ISTimer

IS-ISTimer:

CRS-1#configure

CRS-1(config)#routerisis1

CRS-1(config-isis)lsp-gen-intervalmaximum-wait40

CRS-1(config-isis)intterfacetenGigE0/0/0/2

CRS-1(config-isis-if)#lsp-interval50

IS-IS:NSFConfigurationandVerification

CRS-1(config)#routerisis1

CRS-1(config-isis)#nsf?

Cisco

Ietf

Interface-expires

Interface-timer

Lifetime

CRS-1(config-isis)#nsfcisco

CRS-1(config-isis)#commit

ISISVerfication:

CRS-1#showisis

ConfiguringandVerifyingBFDinIS-IS:

CRS-1(config)#routerisis1

CRS-1(config-isis)#interfaceTenGigE0/0/0/2

CRS-1(config-isis-if)bfd?

Fast-detectEnableFastdetection

Minimum-intervalHellointerval

MultiplierDetectmultiplier

CRS-1(config-isis-if)bfdfast-detect?

Ipv4Address-Family

CRS-1(config-isis-if)bfdfast-detectipv4

CRS-1(config-isis-if)commit

CiscoProprietaryNSFrestart

IETFNSFrestart

#oftimersT1canexpirewaitingfortherestartACK

TimerusedtowaitforarestartACK(second)

Maximumroutelifetimefollowingrestart(second)

BFDVerification:

CRS-1#showisisinterfacetenGigE0/0/0/2