Preparation

Let us now implement the IP address, IS-IS, and SR-MPLS configurations in alignment with the configurations applied to the remaining routers in the topology:

P9

interface Loopback0
ipv4 address 9.9.9.9 255.255.255.255
!
interface GigabitEthernet0/0/0/3
ipv4 address 39.0.0.9 255.255.255.0
no shutdown
!
interface GigabitEthernet0/0/0/5
ipv4 address 29.0.0.9 255.255.255.0
no shutdown
!

The router P9 is connected to the router P2 and P3. The schema for each interface is defined as follows:

For interface loopback0, the value of x is the number associated with the router hostname:

• P9: The value of x = 9

For the following physical interface, the values of x and y are the numbers associated with the hostnames on either end of the link:

• P9-P2: The value of x = 2, y = 9 (where x < y)
• P9-P3: The value of x = 3, y = 9 (where x < y)

The IPv4 address template from Chapter 2 is applied using the specified values.

The IS-IS configuration...