40-10
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 40 Configuring Enhanced Object Tracking
Configuring Enhanced Object Tracking Features
This example output shows whether a route is reachable:
Switch(config)# track 3 500 reachability
Switch(config)# end
Switch# show track 3
Track 3
Response Time Reporter 1 reachability
Reachability is Up
1 change, last change 00:00:47
Latest operation return code: over threshold
Latest RTT (millisecs) 4
Tracked by:
HSRP Ethernet0/1 3
Configuring Static Routing Support
Static routing support using enhanced object tracking provides the ability for the switch to use ICMP
pings to identify when a preconfigured static route or a DHCP route goes down. When tracking is
enabled, the system tracks the state of the route and informs the client when that state changes. Static
route object tracking uses Cisco IP SLAs to generate ICMP pings to monitor the state of the connection
to the primary gateway.
• For more information about Cisco IP SLAs support on the switch, see Chapter 39, “Configuring
Cisco IOS IP SLAs Operations.”
• For more information about static route object tracking, see this URL:
http://www.cisco.com/en/US/docs/ios/12_3/12_3x/12_3xe/feature/guide/dbackupx.html
You use this process to configure static route object tracking:
Step 1 Configure a primary interface for static routing or for DHCP.
Step 2 Configure an IP SLAs agent to ping an IP address using a primary interface and a track object to monitor
the state of the agent.
Step 3 Configure a default static default route using a secondary interface. This route is used only if the primary
route is removed.
Configuring a Primary Interface
Beginning in privileged EXEC mode, follow these steps to configure a primary interface for static
routing:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Select a primary or secondary interface and enter interface
configuration mode.
Step 3
description string Add a description to the interface.
Step 4
ip address ip-address mask [secondary] Set the primary or secondary IP address for the interface.
Step 5
exit Return to global configuration mode.