Cisco NCS 5000 Series User Manual

Tracking IP Route Reachability: Example
In this example, traffic arriving from interface service-ipsec1 has its destination in network 7.0.0.0/24. This
tracking procedure follows the state of the routing protocol prefix to signal when there are changes in the
routing table.
track PREFIX1
type route reachability
route ipv4 7.0.0.0/24
!
interface service-ipsec 1
vrf 1
ipv4 address 70.0.0.2 255.255.255.0
profile vrf_1_ipsec
line-protocol track PREFIX1
tunnel source 80.0.0.2
tunnel destination 80.0.0.1
service-location preferred-active 0/2/0
Building a Track Based on a List of Objects: Example
In this example, traffic arriving from interface service-ipsec1 exits through interface GigabitEthernet 0/0/0/3
and interface ATM 0/2/0/0.1. The destination of the traffic is at network 7.0.0.0/24.
If either one of the interfaces or the remote network goes down, the flow of traffic must stop. To do this, we
use a Boolean AND expression.
track C1
type route reachability
route ipv4 3.3.3.3/32
!
!
track C2
type route reachability
route ipv4 1.2.3.4/32
!
!
track C3
type route reachability
route ipv4 10.0.20.2/32
!
!
track C4
type route reachability
route ipv4 10.0.20.0/24
!
!
track OBJ
type list boolean and
object C1
object C2
!
!
track OBJ2
type list boolean or
object C1
object C2
!
System Management Configuration Guide for Cisco NCS 5000 Series Routers, IOS XR Release 6.2.x
56
Implementing Object Tracking
Configuration Examples for Configuring Object Tracking

Cisco NCS 5000 Series Specifications

General

Brand	Cisco
Model	NCS 5000 Series
Category	Network Router
Language	English