in Computer Networks retagged by
129 views
0 votes
0 votes
Can these following networks be aggregated to one network? If no then why? If yes then what would be the supernet mask?
Network1: 1.2.0.5/24
Network2: 1.2.1.7/24
Network3: 1.2.2.9/24

 

Please provide descriptive solution.
in Computer Networks retagged by
129 views

3 Comments

How can

1.2.0.5/24
1.2.1.7/24
1.2.2.9/24

be in same network?

I think they are 3 different networks.

1.2.0.0/24
1.2.1.0/24
1.2.2.0/24

Their sizes are same.
0
0
So sorry bro.. I have read the question wrong you are right there are three network network of size 256 each.
0
0
edited by

The number of blocks for supernetting must be power of 2 . Here we have 3 blocks which is not power of 2 so we cant aggregate them to a single supernetting network but still we can reduce no of entries in router by combining first  two or last two network and they both combinely use as superneting.

Say ,

network 1: 1.2.0.0/24

network 2:    1.2.1.0/24

network 3:    1.2.2.0/24

we can combine the first two network as 1.2.0.0/23

and last network 1.2.2.0/24 

this two can be entries in the router which we minimize from 3 to 2 entries.

http://pages.cs.aueb.gr/courses/networks/Notes2016/Lecture11/subnetting-supernetting.pdf go to page number 31.

1
1

1 Answer

0 votes
0 votes
1.2.0.0/22 is divided into 1.2.0.0/23 and 1.2.2.0/23 And further 1.2.0.0/23 divided into 1.2.0.0/24 and 1.2.1.0/24,

And 1.2.2.0/23 is divided into 1.2.2.0/24 and 1.2.3.0/24

we get four networks by VLSM

and supernet is mask is 1.2.0.0/22 or mask=255.255.252.0