Cisco Catalyst 4500 Series Software Configuration Guide

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 69 Configuring Enhanced Object Tracking
Configuring Enhanced Object Tracking Features
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 78, “Configuring Cisco
IOS IP SLA Operations.”
• For more information about static route object tracking, see:
http://www.cisco.com/en/US/docs/ios/dial/configuration/guide/dia_rel_stc_rtg_bckup_support_TS
D_Island_of_Content_Chapter.html
You use this process to configure static route object tracking:
Step 1 Configure a primary interface for static routing or for DHCP.ex
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
To configure a primary interface for static routing, perform this task:
To configure a primary interface for DHCP, perform this task:
Command Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
interface interface-id
Selects a primary or secondary interface and enter interface
configuration mode.
Step 3
description string
Adds a description to the interface.
Step 4
ip address ip-address mask [secondary]
Sets the primary or secondary IP address for the interface.
Step 5
exit
Returns to global configuration mode.
Command Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
interface interface-id
Selects a primary or secondary interface and enter interface
configuration mode.
Step 3
description string
Adds a description to the interface.
Step 4
ip dhcp client route track number
Configures the DCHP client to associate any added routes with the
specified track number. Valid numbers are from 1 to 500.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E