Service Manual

The UP/DOWN state of a tracked IPv4 route is determined by a user-congurable threshold (the
threshold metric command) for the route’s metric in the routing table. To provide a common tracking
interface for dierent clients, route metrics are scaled in the range 0 to 255, where 0 is connected and 255
is inaccessible.
The protocol-specic resolution value calculates the scaled metric by dividing a route's cost by the resolution
value set for the route protocol:
• 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 congurable. By default, Dell Networking OS
assigns a metric of 0 to static routes.
• The resolution value used to map RIP routes is not congurable. 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
the route to be DOWN.
Related Commands
• threshold metric – congures the metric threshold used to determine the UP and/or DOWN state of a
tracked route.
• track ip route metric threshold – congures object tracking on the threshold of an IPv4 route metric.
IPv6 Object Tracking Commands
The following section describes the IPv6 object tracking commands.
The following object tracking commands apply to IPv4 and IPv6:
• debug track
• delay
• description
• show running-cong track
• threshold metric
• track interface line-protocol
show track ipv6 route
Display information about all tracked IPv6 routes, including conguration, current tracked state (UP or DOWN), and the clients which
are tracking an object.
Syntax
show track ipv6 route [brief]
Parameters
brief (OPTIONAL) Display a single line summary of information for tracked IPv6 routes.
Command Modes
• EXEC
• EXEC Privilege
Command History
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
Object Tracking
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