Planning Your Network

Network Worksheets

Table 3-6

X.25 Network Table

 

 

 

 

 

NETWORK NAME:

NET3

 

IP NETWORK ADDRESS

C 192.003.251 XXX

 

 

 

 

 

NODE NAME

IP NODE ADDRESS

CENTRAL ADMIN NODE

X.25 ADDRESS

 

 

(Y/N)

 

 

 

 

 

H

001

Y

1234

 

 

 

 

I

002

 

5678

 

 

 

 

J

003

 

6879

 

 

 

 

B

004

 

9876

 

 

 

 

X.25 Internet Routing Table

The purpose of the X.25 internet routing table (Table 3-7)is to list the other networks in the internetwork that can be reached from the X.25 network, which is NET3 in the example. (Note that there may be more than one route to a network.)

As shown in the internetwork map (Figure 3-4),NET3 includes two gateway nodes, B and H. In the X.25 internet routing table note that NET3 nodes using Node H can reach NET5 in one hop, NET2 in two hops, and so on. In the IP Node Address column, the node portion of the node’s IP address is listed.

Table 3-7

X.25 Internet Routing Table

 

 

 

 

 

 

 

NETWORK NAME:

NET3

 

 

IP NETWORK ADDRESS

C 192.003.251 XXX

 

 

 

 

 

 

 

GATEWAY

IP NODE ADDRESS

DESTINATION

HOPS TO

 

 

 

 

DESTINATION

 

 

 

 

 

 

B

004

NET1 C 192.001.001 XXX

1

 

 

 

 

 

 

 

 

NET4 C 192.004.002 XXX

2

 

 

 

 

 

 

 

 

NET2 C 192.002.250 XXX

2

 

 

 

 

 

 

 

 

NET5 C 192.005.252 XXX

3

 

 

 

 

 

 

H

001

NET5 C 192.005.252 XXX

1

 

 

 

 

 

 

 

 

NET2 C 192.002.250 XXX

2

 

 

 

 

 

 

 

 

NET1 C 192.001.001 XXX

3

 

 

 

 

 

 

 

 

NET4 C 192.004.002 XXX

4

 

 

 

 

 

56

Chapter 3