Users Guide

Table Of Contents
Enable Passive Interfaces
A passive interface is one that does not send or receive routing information. Configuring an interface as a passive interface
suppresses both the receiving and sending routing updates.
Although the passive interface does not send or receive routing updates, the network on that interface is included in OSPF
updates sent through other interfaces. You can remove an interface from passive interfaces using the no ipv6 ospf
passive command.
1. Enter an interface type in INTERFACE mode.
interface ethernet node/slot/port[:subport]
2. Configure the interface as a passive interface in INTERFACE mode.
ipv6 ospf passive
Configure Passive Interfaces
OS10(config)# interface ethernet 1/1/6
OS10(conf-if-eth1/1/6)# ipv6 ospf passive
View Passive Interfaces
OS10# show running-configuraiton
!!!
!!
interface ethernet1/1/1
ip address 10.10.10.1/24
no switchport
no shutdown
ipv6 ospf 100 area 0
ipv6 ospf passive
!!
!
Interface OSPFv3 Parameters
To avoid routing errors, interface parameter values must be consistent across all interfaces. For example, set the same time
interval for the hello packets on all routers in the OSPF network to prevent misconfiguration of OSPF neighbors.
1. Enter the interface to change the OSPFv3 parameters in CONFIGURATION mode.
interface interface-name
2. Change the cost associated with OSPFv3 traffic on the interface in INTERFACE mode, from 1 to 65535. The default
depends on the interface speed.
ipv6 ospf cost
3. Change the time interval the router waits before declaring a neighbor dead in INTERFACE mode, from 1 to 65535. The
default is 40. The dead interval must be four times the hello interval. The dead interval must be the same on all routers in the
OSPFv3 network.
ipv6 ospf dead-interval seconds
4. Change the time interval in seconds between hello-packet transmission in INTERFACE mode, from 1 to 65535. The default is
10. The hello interval must be the same on all routers in the OSPFv3 network.
ipv6 ospf hello-interval seconds
NOTE:
When you copy and paste the ip ospf dead-interval and ip ospf hello-interval commands from
the show running configuration output, the changes may not take effect if the configured dead interval is less
than the default hello interval. This does not cause any issues while you save the configuration and reload the switch.
974 Layer 3