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The Object Tracking: IPv6 Route Tracking feature expands the Enhanced Object Tracking (EOT) functionality to allow the tracking of IPv6 routes.
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table.
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Object Tracking: IPv6 Route Tracking is not Stateful Switchover (SSO)-aware and cannot be used with Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), or Gateway Load Balancing Protocol (GLBP) in SSO mode.
Information About Object Tracking: IPv6 Route Tracking
Enhanced Object Tracking (EOT) provides complete separation between the objects to be tracked and the action to be taken by a client when a tracked object changes. Thus, several clients such as Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), or Gateway Load Balancing Protocol (GLBP) can register interest with a tracking process, track the same object, and each take different a action when the object changes.
Each tracked object is identified by a unique number that is specified on the tracking CLI. Client processes use this number to track a specific object.
A tracking process periodically polls tracked objects and notes any change in value. The changes in the tracked object are communicated to interested client processes, either immediately or after a specified delay. The object values are reported as either up or down.
The Object Tracking: IPv6 Route Tracking feature expands EOT functionality to allow the tracking of IPv6 routes.
How to Configure Object Tracking: IPv6 Route Tracking
1.
enable
2.
configure
terminal
3.
track
timer
interface {seconds |
msec
milliseconds}
4.
track
object-number
interface
type
number
ipv6
routing
5.
carrier-delay
6.
delay {up
seconds [down
seconds] | [up
seconds]
down
seconds}
7.
end
8.
show
track
object-number
1.
enable
2.
configure
terminal
3.
track
timer
ipv6
route {seconds |
msec
milliseconds}
4.
track
resolution
ipv6
route {bgp |
eigrp |
isis
|
ospf
|
static }
resolution-value
5.
track
object-number
ipv6
route
ipv6-address/prefix-length
metric
threshold
6.
delay {up
seconds [down
seconds] | [up
seconds]
down
seconds}
7.
ipv6
vrf
vrf-name
8.
threshold
metric {up
number [down
number] |
down
number [up
number ]}
9.
end
10.
show
track
object-number
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. | ||
Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. | ||
Step 3 |
track
timer
ipv6
route {seconds |
msec
milliseconds}
Example: Device(config)# track timer ipv6 route 20 |
(Optional) Specifies the interval that a tracking process polls the tracked object.
| ||
Step 4 |
track
resolution
ipv6
route {bgp |
eigrp |
isis
|
ospf
|
static }
resolution-value
Example: Device(config)# track resolution ipv6 route eigrp 300 |
(Optional) Specifies resolution parameters for a tracked object. | ||
Step 5 |
track
object-number
ipv6
route
ipv6-address/prefix-length
metric
threshold
Example: Device(config)# track 6 ipv6 route 2001:DB8:0:ABCD::1/10 metric threshold |
Tracks the scaled metric value of an IPv6 route to determine if it is above or below a threshold and enters tracking configuration mode. | ||
Step 6 |
delay {up
seconds [down
seconds] | [up
seconds]
down
seconds}
Example: Device(config-track)# delay up 30 |
(Optional) Specifies a period of time (in seconds) to delay communicating state changes of a tracked object.
| ||
Step 7 |
ipv6
vrf
vrf-name
Example: Device(config-track)# ipv6 vrf VRF1 |
(Optional) Tracks an IPv6 route in a specific VPN virtual routing and forwarding (VRF) table. | ||
Step 8 |
threshold
metric {up
number [down
number] |
down
number [up
number ]}
Example: Device(config-track)# threshold metric up 254 down 255 |
(Optional) Sets a metric threshold other than the default value.
| ||
Step 9 |
end
Example: Device(config-track)# end |
Returns to privileged EXEC mode. | ||
Step 10 |
show
track
object-number
Example: Device# show track 6 |
(Optional) Displays tracking information. |
Perform this task to track the reachability of an IPv6 route. A tracked object is considered up when a routing table entry exists for the route and the route is accessible.
1.
enable
2.
configure
terminal
3.
track
timer
ipv6
route {seconds |
msec
milliseconds}
4.
track
object-number
ip
route
ip-address/prefix-length
reachability
5.
delay {up
seconds [down
seconds] | [up
seconds]
down
seconds}
6.
ipv6
vrf
vrf-name
7.
end
8.
show
track
object-number
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. | ||
Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. | ||
Step 3 |
track
timer
ipv6
route {seconds |
msec
milliseconds}
Example: Device(config)# track timer ipv6 route 20 |
(Optional) Specifies the interval that a tracking process polls the tracked object.
| ||
Step 4 |
track
object-number
ip
route
ip-address/prefix-length
reachability
Example: Device(config)# track 4 ipv6 route 2001:DB8:0:AB82::1/10 reachability |
Tracks the reachability of an IPv6 route and enters tracking configuration mode. | ||
Step 5 |
delay {up
seconds [down
seconds] | [up
seconds]
down
seconds}
Example: Device(config-track)# delay up 30 |
(Optional) Specifies a period of time (in seconds) to delay communicating state changes of a tracked object.
| ||
Step 6 |
ipv6
vrf
vrf-name
Example: Device(config-track)# ipv6 vrf VRF2 |
(Optional) Configures a VPN virtual routing and forwarding (VRF) table. | ||
Step 7 |
end
Example: Device(config-track)# end |
Returns to privileged EXEC mode. | ||
Step 8 |
show
track
object-number
Example: Device# show track 4 |
(Optional) Displays tracking information. |
Configuration Examples for Object Tracking: IPv6 Route Tracking
The following example shows how to configure tracking for IPv6 routing on the GigabitEthernet 0/0/1 interface:
Device(config)# track timer interface 5 Device(config)# track 1 interface GigabitEthernet 0/0/1 ipv6 routing Device(config-track)# carrier-delay Device(config-track)# delay up 30 Device(config-track)# end
The following example shows how to configure tracking for IPv6 metric thresholds:
Device(config)# track timer ipv6 route 20 Device(config)# track resolution ipv6 route eigrp 300 Device(config)# track 6 ipv6 route 2001:DB8:0:ABCD::1/10 metric threshold Device(config-track)# delay up 30 Device(config-track)# ipv6 vrf VRF1 Device(config-track)# threshold metric up 254 down 255 Device(config-track)# end
The following example shows how to configure tracking for IPv6-route reachability:
Device(config)# track timer ipv6 route 20 Device(config)# track 4 ipv6 route 2001:DB8:0:AB82::1/10 reachability Device(config-track)# delay up 30 Device(config-track)# ipv6 vrf VRF2 Device(config-track)# end
Related Topic |
Document Title |
---|---|
Cisco IOS commands |
|
Object tracking |
Configuring Enhanced Object Tracking |
IP Application Services commands |
Cisco IOS IP Application Services Command Reference |
Description | Link |
---|---|
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The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to . An account on Cisco.com is not required.
Feature Name |
Releases |
Feature Information |
---|---|---|
Object Tracking: IPv6 Route Tracking |
Cisco IOS XE Release 3.6E |
This feature expands Enhanced Object Tracking (EOT) functionality to allow the tracking of IPv6 routes.
|