211When a track entry to be associated with the physical status of a specific interface is created, the statusof the track entry is Positive if the physical status of the interface is up. The status of the track entry isNegative if the physical status of the interface is down. To display the physical status of an interface, usethe display ip interface brief command.Related commands: display track; display ip interface brief (Layer 3—IP Services Command Reference).Examples# Create track entry 1 and associate it with the physical status of interface GigabitEthernet 3/0/1. system-view[Sysname] track 1 interface GigabitEthernet 3/0/1track interface protocolSyntaxtrack track-entry-number interface interface-type interface-number protocol { ipv4 | ipv6 } [ delay{ negative negative-time | positive positive-time } * ]undo track track-entry-numberViewSystem viewDefault level2: System levelParameterstrack-entry-number: Track entry ID in the range of 1 to 1024.interface-type interface-number: Specifies the interface to be monitored by its type and number.ipv4: IPv4 protocol status of the interface to be monitored. When the IPv4 protocol status of an interfaceis up, the status of the track object is Positive. When the IPv4 protocol status of an interface is down, thestatus of the track object is Negative. To display the IPv4 protocol status of an interface, use the displayip interface brief command.ipv6: IPv6 protocol status of the interface to be monitored. When the IPv6 protocol status of an interfaceis up, the status of the track object is Positive. When the IPv6 protocol status of an interface is down, thestatus of the track object is Negative. To display the IPv6 protocol status of an interface, use the displayipv6 interface command.delay: Specifies that the Track module notifies the application modules of the track entry status changeafter a specific delay time. If this keyword is not provided, the Track module notifies the applicationmodules immediately when the track entry status changes.negative negative-time: Specifies the delay time for the Track module to notify the application modulesthat the status of the track entry changes to Negative. negative-time represents the delay time in therange of 1 to 300 seconds.positive positive-time: Specifies the delay time for the Track module to notify the application modules thatthe status of the track entry changes to Positive. positive-time represents the delay time in the range of 1to 300 seconds.
