By default, how frequently does the designated intermediate system (DIS) send out its hello packets?
A.
3 seconds
B.
6 seconds
C.
9 seconds
D.
12 seconds
Explanation:
hello-interval seconds;Hierarchy Level
[edit logical-systems logical-system-name protocols isis interface interface-name level level-number],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols isis interface interface-name level level-number],
[edit protocols isis interface interface-name level level-number],
[edit routing-instances routing-instance-name protocols isis interface interface-name level level-number]Description
Frequency with which the routing device sends hello packets out of an interface, inseconds.
Options
secondsFrequency of transmission for hello packets.
Range: 1 through 20,000seconds
Default: 3seconds (for designated intermediate system [DIS] routers), 9seconds (for non-DIS routers)