Deployment Guide

Table Of Contents
CONFIGURATION mode
track reachability refresh interval
The refresh interval range is from 0 to 60 seconds. The default is 60 seconds.
The following example shows how to change the refresh interval for tracking the reachability of the next-hop:
DellEMC#configure
DellEMC(conf)#track reachability refresh 20
For example, consider that the next-hop address is changed and the track reachability is checked after the set refresh interval
(20 seconds). If the reachability to the next-hop address is failed, the system displays the following log stating that the track
object state is changed from UP to DOWN.
Sep 28 11:08:57 %STKUNIT1-M:CP %OTM-6-STATE: Object 2 state transition from Up to Down.
Displaying Tracked Objects
To display the currently configured objects used to track Layer 2 and Layer 3 interfaces, and IPv4 and IPv6 routes, use the
following show commands.
To display the configuration and status of currently tracked Layer 2 or Layer 3 interfaces, IPv4 or IPv6 routes, or a VRF
instance, use the show track command. You can also display the currently configured per-protocol resolution values used to
scale route metrics when tracking metric thresholds.
Display the configuration and status of currently tracked Layer 2 or Layer 3 interfaces, IPv4 or IPv6 routes, and a VRF
instance.
show track [object-id [brief] | interface [brief] [vrf vrf-name] | ip route [brief] [vrf
vrf-name] | resolution | vrf vrf-name [brief] | brief]
Display the tracking configuration of a specified object or all objects that are currently configured on the router.
show running-config track [object-id]
Example of the show track command.
Dell#show track
Track 1
IP route 23.0.0.0/8 reachability
Reachability is Down (route not in route table)
2 changes, last change 00:16:08
Tracked by:
Track 2
IPv6 route 2040::/64 metric threshold
Metric threshold is Up (STATIC/0/0)
5 changes, last change 00:02:16
Metric threshold down 255 up 254
First-hop interface is GigabitEthernet 13/2
Tracked by:
VRRP GigabitEthernet 7/30 IPv6 VRID 1
Track 3
IPv6 route 2050::/64 reachability
Reachability is Up (STATIC)
5 changes, last change 00:02:16
First-hop interface is GigabitEthernet 13/2
Tracked by:
VRRP GigabitEthernet 7/30 IPv6 VRID 1
Track 4
Interface GigabitEthernet 13/4 ip routing
IP routing is Up
3 changes, last change 00:03:30
Tracked by:
628
Object Tracking