Ip Split-Horizon Poison; Passive-Interface - Enterasys Matrix DFE-Gold Series Configuration Manual

ip split-horizon poison

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 transmitting update packets on an interface.
Syntax
passive-interface vlan vlan-id
no passive-interface vlan vlan-id
Parameters
vlan
vlan
Defaults
None.
‐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.
Enterasys Matrix DFE-Gold Series Configuration Guide 21-15
Configuring RIP