is Summarizing routes and route summarization the same?

[S9539245H]

Can someone explain them briefly for me, thanks!       

[Muhammad Thanveer · Accepted solution]

Hello Jason,

Think you have some subnets like 10.1.1.0/24, 10.1.2.0/24, 10.31.3.0/24

Summarising routes:

now you can summarise them as /22 then it means 10.1.1.0/22 which covers all the subnets. Its an offline calculation which is done by an administrator.

now if this is done by a protocol it is route summarization

Routing protocols summarize or aggregate routes based on shared network numbers within the network.

Classless routing protocols (such as RIPv2, OSPF, IS-IS, and EIGRP) support route summarization based on subnet addresses, including VLSM addressing.

Classful routing protocols (RIPv1 and IGRP) automatically summarize routes on the classful network boundary and do not support summarization on any other bit boundaries. Classless routing protocols support summarization on any bit boundary

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Regards
Thanveer
"Everybody is genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is a stupid."

[vmiller · Accepted solution]

They joys of the english language:

summarizing routes is what you do to achieve route summarization.