12　トラッキング機能

〈この章の構成〉

• boolean

• default-state

• failure detection

• icmp

• icmp check-reply-interface

• interval

• recovery detection

• shutdown

• target interface

• target ip

• target ipv6

• target object

• timeout

• track-target aging-interval

• track-target init-interval

• track-target name

• type