Cisco Catalyst 4500 Series Configuration Guide

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Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
OL-25340-01
Chapter 39 Configuring VRF-lite
Configuring a VPN Routing Session
Configuring a VPN Routing Session
Routing within the VPN can be configured with any supported routing protocol (RIP, OSPF, or BGP) or
with static routing. The configuration shown here is for OSPF, but the process is the same for other
protocols.
To configure OSPF in the VPN, perform this task:
Use the no router ospf process-id vrf vrf-name global configuration command to disassociate the VPN
forwarding table from the OSPF routing process.
The following examples configure a single VRF named VRF-RED:
Switch(config)# ip vrf VRF-RED
Switch(config-vrf)# rd 1:1
Switch(config-vrf)# exit
Switch(config)# router eigrp virtual-name
Switch(config-router)# address-family ipv4 vrf VRF-RED autonomous-system 1
Switch(config-router-af)# network 10.0.0.0 0.0.0.255
Switch(config-router-af)# topology base
Switch(config-router-topology)# default-metric 10000 100 255 1 1500
Switch(config-router-topology)# exit-af-topology
Switch(config-router-af)# exit-address-family
Configuring BGP PE to CE Routing Sessions
To configure a BGP PE to CE routing session, perform this task:
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# router ospf
process-id vrf vrf-name
Enables OSPF routing, specifies a VPN forwarding table,
and enters router configuration mode.
Step 3
Switch(config-router)#
log-adjacency-changes
(Optional) Logs changes in the adjacency state (the default
state).
Step 4
Switch(config-router)# redistribute
bgp autonomous-system-number subnets
Sets the switch to redistribute information from the BGP
network to the OSPF network.
Step 5
Switch(config-router)# network
network-number area area-id
Defines a network address and mask on which OSPF runs
and the area ID for that network address.
Step 6
Switch(config-router)# end
Returns to privileged EXEC mode.
Step 7
Switch# show ip ospf process-id
Verifies the configuration of the OSPF network.
Step 8
Switch# copy running-config
startup-config
(Optional) Saves your entries in the configuration file.
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# router bgp
autonomous-system-number
Configures the BGP routing process with the AS number
passed to other BGP routers and enters router
configuration mode.

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