Cisco 10000 - Manual (Page 158)

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Cisco 10000 Series Router Software Configuration Guide
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Chapter 4 Configuring Multiprotocol Label Switching
Half-Duplex VRF
Configuring RADIUS
To configure the downstream VRF for an AAA server, enter the following Cisco attribute value:
cisco-avpair = “ip:vrf-id=vrf-name1 downstream vrf-name2”
where:
The vrf-name1 argument is the name of the VRF associated with the subinterface or virtual template
interface.
The vrf-name2 argument is the name of the downstream VRF into which all of the subscriber routes from
the AAA server are installed.
Note Instead of using the lcp:interface-config RADIUS attribute, we recommend that you use the ip:vrf-id
RADIUS attribute when supported in Cisco IOS software. Unlike the lcp:interface-config attribute,
which causes full virtual interfaces to be used, the ip:vrf-id attribute causes virtual subinterfaces to be
used, which significantly improves scalability.
Example 4-10 shows how to configure a downstream VRF named D on a AAA server:
Example 4-10 Configuring the Downstream VRF on RADIUS
cisco-avpair = "ip:vrf-id=U downstream D"
Configuration Examples for Half-Duplex VRF
This section provides the following configuration examples. These examples use the hub and spoke
topology shown in
Figure 4-4 .
• Hub and Spoke Sample Configuration with Half-Duplex VRFs, page 4-27
• RADIUS Sample Configuration, page 4-28
Figure 4-4 Sample Topology for Half-Duplex Configuration
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Labe
Vitava
ATM ISP
Lipno Svitava
Hub
Router
Nezarka
Spokes
MPLS Core
Spoke PE
Router
P Router
Hub PE
Router
Odra
RADIUS Server