DELL S50V User Manual

Object Tracking | 685

The tracking process uses a protocol-specific resolution value to convert the actual metric in the rout-
ing table to a scaled metric in the range 0 to 255. The resolution value is user-configurable and calcu-
lates the scaled metric by dividing a route's cost by the resolution value set for the route type: 

•

For ISIS, you can set the resolution in the range 1 to 1000, where the default is 10. 

•

For OSPF, you can set the resolution in the range 1 to 1592, where the default is 1. 

•

The resolution value used to map static routes is not configurable. By default, FTOS assigns a 
metric of 0 to static routes. 

•

The resolution value used to map RIP routes is not configurable. The RIP hop-count is 
automatically multiplied by 16 to scale it. For example, a RIP metric of 16 (unreachable) scales to 
256, which considers a route to be DOWN. 

Tracking Route Reachability

To configure object tracking on the reachability of an IPv4 or IPv6 route, use the following commands. To 
remove object tracking, enter the 

command. 

1

Configure object tracking on the 
reachability of an IPv4 or IPv6 route.

{

ip route ip-address/prefix-len 

| 

ipv6 route ipv6-address/prefix-len

} 

 [

 

]

Valid object IDs are from 1 to 65535.
Enter an IPv4 address in dotted decimal 
format; valid IPv4 prefix lengths are from /
0 to /32.
Enter an IPv6 address in X:X:X:X::X 
format; valid IPv6 prefix lengths are from /
0 to /128.
(Optional) E-Series only: For an IPv4 
route, you can enter a VRF name to specify 
the virtual routing table to which the 
tracked route belongs.

CONFIGURATION

2

(Optional) Configure the time delay 
used before communicating a change 
in the status of a tracked route.

{[

 

] [

 

]}

Valid delay times are from 0 to 180 
seconds. Default: 0.

OBJECT TRACKING

3

(Optional) Identify the tracked object 
with a text description.

 

The text string can be up to 80 characters.

OBJECT TRACKING

4

(Optional) Display the tracking 
configuration and the tracked object’s 
status.

EXEC Privilege