Enterasys Matrix DFE-Gold Series

ip split-horizon poison Configuring RIP
Enterasys Matrix DFE-Gold Series Configuration Guide 21-15
ip split-horizon poison
Usethiscommandtoenableordisablesplithorizonpoison‐reversemodeforRIPpackets.
Syntax
ip split-horizon poison
no ip split-horizon poison
Parameters
None.
Defaults
None.
Mode
Routercommand,Interfaceconfiguration:Matrix>Router(config‐if(Vlan1))#
Usage
Splithorizonpreventspacketsfromexitingthroughthesameinterfaceonwhichtheywere
received.Poison‐reverseexplicitlyindicatesthatanetworkisunreachable,ratherthanimplyingit
bynotincludingthenetworkinroutingupdates.
The“no”formofthiscommanddisablessplithorizonpoisonreverse.
Example
ThisexampleshowshowtodisablesplithorizonpoisonreverseforRIPpacketstransmittedon
VLAN1:
Matrix>Router(config)#interface vlan 1
Matrix>Router(config-if(Vlan 1))#no ip split-horizon poison
passive-interface
UsethiscommandtopreventRIPfromtransmitt ingupdatepacketsonaninterface.
Syntax
passive-interface vlan vlan-id
no passive-interface vlan vlan-id
Parameters
Defaults
None.
vlan
vlan‐id SpecifiesthenumberoftheVLANtomakeapassiveinterface.This
VLANmustbeconfiguredforIProutingasdescribedin“Pre‐Routing
ConfigurationTasks”onpage 2‐100.