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Answers to Review Questions

319

10.

A. The Weight attribute is a Cisco proprietary BGP attribute used as
a metric to find the best routes through the networks.

11.

B. The

show ip bgp

status command displays the status of all BGP

connections. The show ip bgp summary command displays the BGP
configuration. The other two commands are not valid.

12.

B. Using

the

soft

syntax followed by the in and out syntaxes, you

can identify whether the clear ip bgp command is to affect inbound
or outbound triggered updates.

13.

C. The

debug ip bgp

events command is used to display all BGP

events as they occur. The only other valid command listed is debug ip
bgp dampening

14.

D. The Weight attribute can be set between 0 and 65,535 using the
neighbors

command. The default value is 32,768.

15.

B. If you use the as-set syntax, the BGP router will advertise the
route as coming from your AS. This syntax will also set the Atomic
Aggregate attribute to show that information regarding the route may
be missing.

16.

B, D. The show ip bgp neighbors and the show ip bgp commands
are both troubleshooting commands that would be used to solve this
problem. The show ip bgp neighbors command displays all the
advertised routes, and the show ip bgp command looks at all the con-
nections.

17.

D. The

no synchronization

command disables synchronization,

allowing much faster convergence.

18.

A. The Atomic Aggregate attribute is used to help identify the correct
networks for networks that implement CIDR.

19.

C. The

weight

value can be set to a range from 0 to 65,535. The

default value is 32,768.

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