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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-10
Chapter 6 Broadband Scalability and Performance
Using the cisco-avpair="lcp:interface-config" RADIUS Attribute
Setting the VRF and IP Unnumbered Interface Configurations in Virtual Interface Templates
You can specify one VSA value in a user profile on RADIUS and another value locally in the virtual
template interface. The Cisco ASR 1000 Series Router clones the template and then applies the values
configured in the profiles it receives from RADIUS, resulting in the removal of any IP configurations
when the router applies the profile values.
Redefining User Profiles to Use the ip:vrf-id and ip:ip-unnumbered VSAs
The requirement of a full virtual access interface when using the
lcp:interface-config
VSA in user
profiles can result in scalability issues, such as increased memory consumption. This situation is
especially true when the Cisco ASR 1000 Series Router attempts to apply a large number of per-user
profiles that include the
lcp:interface-config
VSA. Therefore, when updating your user profiles, we
recommend that you redefine the
lcp:interface-config
VSA to the scalable ip:vrf-id and
ip:ip-unnumbered VSAs.
The following example shows how to redefine a VRF named
newyork
using the ip:vrf-id VSA:
Change:
Cisco:Cisco-Avpair = “lcp:interface-config=ip vrf forwarding newyork”
To:
Cisco:Cisco-Avpair = “ip:vrf-id=newyork”
The following example shows how to redefine the Loopback 0 interface using the ip:ip-unnumbered
VSA.
Change:
Cisco:Cisco-Avpair = “lcp:interface-config=ip unnumbered Loopback 0”
To:
Cisco:Cisco-Avpair = “ip:ip-unnumbered=Loopback 0”
