Cisco ASR 9000 Series User Manual

PurposeCommand or Action
◦
Entering no exits the configuration session and returns
the router to EXEC mode without committing the
configuration changes.
◦
Entering cancel leaves the router in the current
configuration session without exiting or committing
the configuration changes.
•
Use the commit command to save the configuration changes
to the running configuration file and remain within the
configuration session.
Tracking IP Route Reachability
When a host or a network goes down on a remote site, routing protocols notify the router and the routing table
is updated accordingly. The routing process is configured to notify the tracking process when the route state
changes due to a routing update.
A tracked object is considered up when a routing table entry exists for the route and the route is accessible.
SUMMARY STEPS
1.
configure
2.
track track-name
3.
type route reachability
4.
Use one of the following commands:
•
vrf vrf-table-name
•
route ipv4 IP-prefix/mask
5.
exit
6.
(Optional) delay {up seconds|down seconds}
7.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enters track configuration mode.
track track-name
Step 2
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
332
Implementing Object Tracking
Tracking IP Route Reachability

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model