Zte ZXR10 8900 Series User Manual

Chapter8
VRRPConfiguration
TableofContents
VRRPOverview.................................................................73
ConguringVRRP..............................................................74
VRRPCongurationExamples.............................................74
VRRPMaintenanceandDiagnosis.........................................76
VRRPOverview
Hostinabroadcastdomainusuallysetsadefaultgatewayasthe
nexthopofroutingdatapackets.Thehostinthebroadcastdo-
maincannotcommunicatewiththehostinanothernetworkunless
thedefaultgatewayworksnormally.T oavoidthesinglepointof
failurecausedbythedefaultgateway,multiplerouterinterfaces
areconguredinthebroadcastdomainandruntheVirtualRouter
RedundancyProtocol(VRRP)intheserouters.
VRRPisusedtoconguremultiplerouterinterfacesinabroadcast
domainintoagrouptoformavirtualrouterandassignsanIP
addresstotheroutertofunctionasitsinterfaceaddress.This
interfaceaddressmaybetheaddressofoneofrouterinterfaces
orthethirdpartyaddress.
Iftheinterfaceaddressisused,arouterwiththeinterfaceaddress
actsasthemasterrouter .Otherroutersactasthebackuprouters.
Therouterwithhighpriorityisusedasthemasterrouterifthe
thirdpartyaddressisused.Iftworoutershavethesamepriority,
theonethatsendsVRRPmessagerstwins.
SettheIPaddressofthevirtualroutertogatewayonthehost
inthisbroadcastdomain.Themasterrouterisreplacedwith
thebackuprouterwiththehighestpriorityifthemasterrouter
isfaulty,withoutaffectingthehostinthisdomain.Thehostin
thisdomaincannotcommunicatewithoutsideworldonlywhenall
routersintheVRRPgroupworkabnormally.
Theserouterscanbeconguredintomultiplegroupsformutual
backup.ThehostsinthedomainusedifferentIPaddressesas
gatewaytoimplementdataloadbalance.
CondentialandProprietaryInformationofZTECORPORATION73

Zte ZXR10 8900 Series Specifications

General

Operating Temperature	0°C to 45°C
Storage Temperature	-40°C to 70°C
Operating Humidity	10% to 90% (non-condensing)
Storage Humidity	5% to 95% (non-condensing)
Ports	10/100/1000BASE-T
Layer Support	Layer 2 and Layer 3
VLAN Support	4K VLANs
QoS	8 priority queues per port
Management	CLI, Web, SNMP, RMON
Power Supply	AC or DC
Redundancy	Power supply redundancy, fan redundancy