API Guide

2. Configure an area as a stub area in ROUTER-OSPF mode.
area area-id stub [no-summary]
● area-id—Enter the OSPF area ID as an IP address in A.B.C.D format or number, from 1 to 65535.
● no-summary—(Optional) Enter to prevent an ABR from sending summary LSA to the stub area.
Configure stub area
OS10(config)# router ospf 10
OS10(conf-router-ospf-10)# area 10.10.5.1 stub
View stub area configuration
OS10# show ip ospf
Routing Process ospf 10 with ID 130.6.196.14
Supports only single TOS (TOS0) routes
It is Flooding according to RFC 2328
SPF schedule delay 1000 msecs, Hold time between two SPFs 10000 msecs
Convergence Level 0
Min LSA origination 0 msec, Min LSA arrival 1000 msec
Min LSA hold time 5000 msec, Max LSA wait time 5000 msec
Number of area in this router is 1, normal 0 stub 1 nssa 0
Area (10.10.5.1)
Number of interface in this area is 0
SPF algorithm executed 1 times
Area ranges are
OS10# show running-configuration ospf
!
router ospf 10
area 10.10.5.1 stub
Passive interfaces
A passive interface does not send or receive routing information. Configuring an interface as a passive interface suppresses
both 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.
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.
ip ospf passive
Configure passive interfaces
OS10(config)# interface ethernet 1/1/6
OS10(conf-if-eth1/1/6)# ip ospf passive
View passive interfaces
OS10# show running-configuration
!!!
!!
interface ethernet1/1/6
ip address 10.10.10.1/24
no switchport
no shutdown
ip ospf 100 area 0.0.0.0
ip ospf passive
!!
!
Layer 3
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