From: Jared Scrivener (jscrivener@ipexpert.com)
Date: Sun Feb 01 2009 - 12:42:19 ARST
Kelvin,
Aggregation is normally used to represent supernetting classful networks (as
in BGP). Summarization is generally used to represent grouping of networks
or subnets.
BGP uses the "aggregate-address" command for its aggregation, IGPs use the
"summary-address" command for theirs (except inter-area in OSPF which uses
the area-range command).
The terms are pretty much synonymous and will be used interchangeably by
most people.
Cheers,
Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
Technical Instructor - IPexpert, Inc.
Telephone: +1.810.326.1444
Fax: +1.810.454.0130
Mailto: jscrivener@ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Kelvin Yeo
Sent: Sunday, 1 February 2009 9:16 AM
To: 'Cisco certification'
Subject: Difference bet. Summarisation and Aggregation
Hi Group,
Someone share your understanding in Summarizations and Aggregations
difference? What context are they used in?
Kelvin
Blogs and organic groups at http://www.ccie.net
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