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 Post subject: Summarization and Default Network Advertisement
PostPosted: Wed Mar 11, 2009 9:18 pm 
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Joined: Tue Jan 06, 2009 5:56 pm
Posts: 25
Learning Objectives
• Review basic EIGRP configuration
• Configure and verify EIGRP auto-summarization
• Configure and verify EIGRP manual summarization
• Learn to use debug commands for EIGRP summarization
• Configure ip default-network advertisement with EIGRP
• Consider the effects of summarization and default routes in a large internetwork

A network engineer has been having trouble with high memory, bandwidth, and
CPU utilization on her routers that are running EIGRP. Over lunch, she
mentions to you that she has flapping routes in remote parts of the EIGRP
autonomous system and suspects that these are the cause of the performance
impediment. The engineer’s network has only one path out to the Internet and
her ISP has mandated that she use 172.31.1.1/30 on the end of the backbone
connection.

After asking if you could take a look at her network, you discover that the
routing tables are filled with 29-bit and 30-bit IP network prefixes, some of which
are unstable and flapping. You observe that summarization would prompt a
dramatic improvement in network performance and volunteer to implement it.
She asks you to show her proof-of-concept in the lab first, so you copy the
configuration files to paste into your lab routers.




Attachments:
Summarization and Default Network Advertisement.rar [11.58 KiB]
Downloaded 835 times
EIGRP-Summary.rar [981 Bytes]
Downloaded 783 times
Screenshot-1.png
Screenshot-1.png [ 200.9 KiB | Viewed 3217 times ]
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