which IS-IS hierarchy?

seenagape

9 years ago

The Cisco IOS XE Software summary-address router IS-IS configuration command can be used to
send a summarized route into which IS-IS hierarchy?

A.
Level 1 only

B.
Level 2 only

C.
Level-1-2 only

D.
Level 1 or Level 2 or Level-1-2

Explanation: