Ospf Configuration Example - Extreme Networks ExtremeWare XOS Guide Manual

Interior Gateway Protocols
Dead router wait interval (Dead Interval)—The interval after which a neighboring router is declared
●
down because hello packets are no longer received from the neighbor. This interval should be a
multiple of the hello interval. The default value is 40 seconds.
Router wait interval (Wait Timer Interval)—The interval between the interface coming up and the
●
election of the DR and BDR. This interval should be greater than the hello interval. If this time is
close to the hello interval, the network synchronizes very quickly but might not elect the correct DR
or BDR. The default value is equal to the dead router wait interval.
NOTE
The OSPF standard specifies that wait times are equal to the dead router wait interval.

OSPF Configuration Example

Figure 62 is an example of an autonomous system using OSPF routers. The details of this network
follow.
Figure 62: OSPF configuration example
Area 0
IR 2
Headquarters
ABR 2
160.26.25.1
Virtual link
160.26.25.2
Area 5
ExtremeWare XOS 11.1 Concepts Guide
10.0.1.1
10.0.3.2
ABR 1
10.0.3.1
160.26.26.1
160.26.26.2
Chicago
IR 1
10.0.1.2
10.0.2.2
10.0.2.1
161.48.2.2
Los Angeles
161.48.2.1
Area 6 (stub)
EX_040
394