Users Guide

It is an Autonomous System Border Router
It is an Area Border Router
It is Flooding according to RFC 2328
Convergence Level 1
Min LSA origination 0 msec, Min LSA arrival 0 msec
Min LSA hold time 0 msec, Max LSA wait time 0 msec
Number of area in this router is 3, normal 1 stub 1 nssa 1
Area BACKBONE (0)
Number of interface in this area is 1
SPF algorithm executed 28 times
Area ranges are
Area (2)
Number of interface in this area is 1
SPF algorithm executed 28 times
Area ranges are
Area (3)
Number of interface in this area is 1
SPF algorithm executed 28 times
Area ranges are
Disable fast convergence
OS10(conf-router-ospf-65535)# no fast-converge
Interface 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. To change the OSPFv2 parameters in CONFIGURATION mode, enter the interface.
interface interface-name
2. Change the cost associated with OSPF traffic on the interface in INTERFACE mode, from 1 to 65535. The default depends
on the interface speed.
ip ospf cost
3. Change the time interval, from 1 to 65535, that the router waits before declaring a neighbor dead in INTERFACE mode. The
default time interval is 40. The dead interval must be four times the hello interval and must be the same on all routers in the
OSPF network.
ip ospf dead-interval seconds
4. Change the time interval between hello-packet transmission in INTERFACE mode, from 1 to 65535. The default time interval
is 10. The hello interval must be the same on all routers in the OSPF network.
ip 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.
5. Change the priority of the interface, which determines the DR for the OSPF broadcast network in INTERFACE mode, from 0
to 255. The default priority of the interface is 1.
ip ospf priority number
6. Change the retransmission interval time, in seconds, between LSAs in INTERFACE mode, from 1 to 3600. The default
retransmission interval time is 5. The retransmit interval must be the same on all routers in the OSPF network.
ip ospf retransmit-interval seconds
Layer 3
943