Avocent Cyclades-PR2000 4 EXAMPLE SYSTEM WITH PR2000 IN AS 100 BEING CONFIGURED, Tele Popeye

Cyclades-PR2000

The last option is to aggregate the addresses contained in the local autonomous system in order to present an aggregated route to the outside world. This is done in the last step.

8.Aggregate the addresses contained in the AS. The steps defined above will now be clarified.

STEP ONE

The global parameters apply to the router’s AS. Classless Inter-Domain Routing (CIDR) Address notation is used instead of the normal IP Address and Subnet mask notation. Both are shown in Figure 9.4.

AS 100

200.50.51.0

255.255.255.0AS 747 200.50.51.0 / 24

PR3000 100.100.100.1 PR3000

100.100.100.2
200.200.200.1	Tele Popeye
200.50.50.0
255.255.255.0
200.50.50.0 / 24
AS 310
PR3000
200.200.200.2
Tele Brutus

FIGURE 9.4 EXAMPLE SYSTEM WITH PR2000 IN AS 100 BEING CONFIGURED

Chapter 9 - Routing Protocols 77