From: anthony.sequeira@thomson.com
Date: Tue May 15 2007 - 17:11:16 ART
NOTE: On June 19, 2007 the CCIE-R/S written exam updates to version 3.0.
On that same day, TESTiT will revise to cover the new version of the
exam. Also, coming soon from NetMasterClass, LEARNiT - Catalyst
Switching COD, LEARNiT - Cisco Voice over IP, and LEARNiT - Securing
Networks with Cisco Routers and Switches.
LAST WEEK'S ANSWER:
Answer: a
Topic Domain: 4b
Issues:
What could result in such output in show ip bgp? What is the as-set
option?
Solutions:
Without the use of the as-set option in the aggregate-address command,
the AS Path information for the specific routes forming the aggregate is
lost. To preserve this information and see displays like the one in this
question, use the as-set option when performing aggregation.
More Information:
Understanding Route Aggregation in BGP
http://www.cisco.com/warp/public/459/aggregation.html
LAST WEEK'S QUESTION:
4-11-10. You are troubleshooting your BGP router and you notice the
following PATH information reported when you run the show ip bgp
command: 64000 {65000, 64500}. Which of the following statements is true
regarding this output?
a. This output is the result of route aggregation and the as-set
option
b. This output is the result of the use of a BGP confederation
c. This output is the result of BGP AS-path prepending
d. This output is the result of route aggregation without the
as-set option
THIS WEEK'S QUESTION:
4-11-11. Examine the partial router configuration shown in the exhibit.
What is the MED value for the route 10.10.11.10/24 advertised to
172.16.10.10?
a. 100
b. 120
c. 200
d. 0
Exhibit 1
router bgp 65001
neighbor 172.16.10.10 remote-as 65004
neighbor 172.16.10.10 route-map MED_OUT out
network 10.10.10.0 mask 255.255.255.0
network 10.11.10.0 mask 255.255.255.0
network 10.10.11.0 mask 255.255.255.0
!
access-list 50 permit 10.10.10.0 0.0.0.255
access-list 60 permit 10.11.10.0 0.0.0.255
!
route-map MED_OUT permit 10
match ip address 50
set metric 100
!
route-map MED_OUT permit 20
match ip address 60
set metric 200
!
route-map MED_OUT permit 120
Question of the Week Compliments of:
TESTiT from NetMasterClass
http://www.netmasterclass.com/site/written.php
Copyright 2002-2007 NetMasterClass, LLC
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