Specifications

preempt Configuring VRRP
Enterasys Matrix N Standalone (NSA) Series Configuration Guide 21-67
Parameters
Defaults
Ifnotspecified,critical‐prioritywillbesetto10.
Mode
Routercommand,Routerconfiguration:Matrix>Router(config‐router)#
Usage
AcriticalIPaddressdefinesaninterface—inadditiontotheinterfacebetweenhostsandafirst‐
hoprouter—thatwillpreventthemasterrouterfromfunctioningproperlyiftheinterfacewereto
fail.Forexample,anIPaddressofaninterfaceconnectingamasterroutertoarouter
configured
forinternetaccesswouldbeconsideredacriticalIPaddressforVRRProuting.Uptofourcritical
IPaddressescanbeconfiguredonthedevice.
The“no”formofthiscommandclearsthecriticalIPaddress.
Example
ThisexampleshowshowtosetIPaddress182.127.62.3asacriticalIPaddressassociatedwith
VLAN1,VRID1:
Matrix>Router(config)#router vrrp
Matrix>Router(config-router)#critical-ip vlan 1 1 182.127.62.3
preempt
UsethiscommandtoenableordisablepreemptmodeonaVRRProuter.
Syntax
preempt vlan-id vrid
no preempt vlan-id vrid
Parameters
vlanvlan‐id SpecifiesthenumberoftheVLANonwhichtosetthecriticalIP
address.ThisVLANmustbeconfiguredforIProutingasdescribedin
“ReviewingandConfiguringRouting”onpage 2‐89.
vrid SpecifiesauniqueVirtualRouterID(VRID)associatedwiththerouting
interface.Validvaluesare
from1to255.
ip‐address SpecifiestheIPaddresstosetasthecriticalIPaddress.
critical‐priority (Optional)SpecifiesthevaluebywhichtheVRID’sprioritywill
decreaseasacriticalIPbecomesunavailable.
vlanvlan‐id SpecifiesthenumberoftheVLANonwhichtosetpreemptmode.This
VLANmustbeconfiguredforIProutingasdescribedin“Reviewing
andConfiguringRouting”onpage 2‐89.
vrid SpecifiesauniqueVirtualRouterID(VRID)associatedwiththerouting
interface.Validvaluesarefrom1
to255.