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Object Tracking | 683
For an IPv4 interface, a routing object only tracks the UP/DOWN status of the specified IPv4 interface
(
track interface ip-routing command).
• The status of an IPv4 interface is UP only if the Layer 2 status of the interface is UP and the interface
has a valid IP address.
• The Layer 3 status of an IPv4 interface goes DOWN when its Layer 2 status goes down (for a Layer 3
VLAN, all VLAN ports must be down) or the IP address is removed from the routing table.
For an IPv6 interface, a routing object only tracks the UP/DOWN status of the specified IPv6 interface
(
track interface ipv6-routing command).
• The status of an IPv6 interface is UP only if the Layer 2 status of the interface is UP and the interface
has a valid IPv6 address.
• The Layer 3 status of an IPv6 interface goes DOWN when its Layer 2 status goes down (for a Layer 3
VLAN, all VLAN ports must be down) or the IPv6 address is removed from the routing table.
To configure object tracking on the routing status of a Layer 3 interface, use the following commands. To
remove object tracking on a Layer 3 IPv4/IPv6 interface, enter the
no track object-id command.
Figure 31-3. Command Example: track interface ip routing
Step Task Command Syntax Command Mode
1 Configure object tracking on the routing
status of an IPv4 or IPv6 interface.
track object-id interface interface {ip
routing
| ipv6 routing}
Valid object IDs are from 1 to 65535.
CONFIGURATION
2 (Optional) Configure the time delay used
before communicating a change in the
status of a tracked interface.
delay {[up seconds] [down
seconds]}
Valid delay times are from 0 to 180
seconds. Default: 0.
OBJECT TRACKING
3 (Optional) Identify the tracked object
with a text description.
description text
The text string can be up to 80
characters.
OBJECT TRACKING
4 (Optional) Display the tracking
configuration and the tracked object’s
status.
show track object-id
EXEC Privilege
FTOS(conf)#track 101 interface gigabitethernet 7/2 ip routing
FTOS(conf-track-101)#delay up 20
FTOS(conf-track-101)#description NYC metro
FTOS(conf-track-101)#end
FTOS#show track 101
Track 101
Interface GigabitEthernet 7/2 ip routing
Description: NYC metro
IP routing is Down (shutdown)
2 changes, last change 00:03:23
Tracked by: