RP/0/RP0/CPU0:R2(config-isis)#show configuration failed
Sun Oct  4 07:04:47.014 UTC
!! SEMANTIC ERRORS: This configuration was rejected by 
!! the system due to semantic errors. The individual 
!! errors with each failed configuration command can be 
!! found below.


router isis 1
 net 49.0005.0020.0200.2002.00
!!% Maximum area address count exceeded: maximum number of area addresses is 3
!
end