Enterasys Networks XSR CLI vrrp <group> track

Virtual Router Redundancy Protocol Commands
5-196 Configuring the Internet Protocol
vrrp <group> track
ThiscommandallowsaVirtualRouter(VR)totrackanotherinterface(FastEthernet,Serial,Dialer
orMultilinkPPP)oroneormoeroutesonthesamerouter.
WheninterfaceAisconfiguredtotrackinterfaceB,interfaceAwillmonitorthestatusofinterface
BtodecideifitwantstobecomethemasterofaVR.WheninterfaceBgoesdown,itwilllowerits
priorityto0(zero)andrefrainfromparticipatingintheVRmasterselection.butwillcontinueto
monitorinterfaceB.WheninterfaceBcomesup,interfaceAwillincreaseitsVRprioritybackto
theoriginalvalue.IfinterfaceAisoriginallyconfiguredasabackupVR,nopreemptionwill
occur,butinterfaceAwillresumebeingthebackupVR.
Thiscommandshouldbeusedontheinterfacethatismostlikelytobeselectedasmasterofthe
correspondingVR.IftheinterfaceisconfiguredasabackupVR,thecommandhasnoeffect.
Whenyouconfigurewatchlisttracking,ifallroutesfail,theVRwillloweritspriorityto0and
whenatleastoneoftheroutescomeup,theVRwillreturntoitsoriginalpriority.When
specifyingawatch‐group,beawarethatyoucanusetheassociated dialer watch-list
command.
Syntax of the “no” Form
vrrp <group> track <interface-type> watch-group watch-list-number
Syntax of the “no” Form
Thenoformofthiscommanddisablesthefunctionality:
no vrrp group track
Defaults
•Nointerfacetracking.
•Ifnogroupisprovided,thedefaultgroupis1.
Mode
Interfaceconfiguration:XSR(config-if<xx>)#
Example
ThisexampleenablesthetrackingofinterfaceSerial1/0byinterfaceF1onVR2:
Notes: This command should be used on the interface most likely to be chosen master of the
corresponding VR. The command has no effect if the interface is configured as a backup VR.
The XSR supports one track interface per VR only, so every time it is configured, the router will
overwrite the previous one.
Caution: When you configure the track interface, the VR IP address you specify must be different
than the physical IP address of the interface otherwise client ARP tables will not be correctly
updated.
group VRgroupnumber,rangingfrom1to255.
interface-type Nameandnumberoftheinterfacetomonitor.
watch-list-number NumberoftheDialerwatch‐listtomonitor,rangingfrom1to255.