Broadband Scalability and Performance
The infrastructure of a service provider must be capable of supporting the services that an enterprise
customer or Internet service provider (ISP) wants to offer its subscribers. The service provider must also
be able to scale up to an expanding subscriber base. You can configure the Cisco ASR1000 Series
Routers for high broadband scalability.
Finding Feature Information in This Module
Your software release might not support all the features documented in this module. For the latest feature
information and caveats, see the release notes for your platform and software release. To find information
about the features documented in this module, and to see a list of the releases in which each feature is
supported, see the
Use Cisco Feature Navigator to find information about platform support and Cisco software image
support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on
Cisco.com is not required.
Contents
This guide provides information about the following topics:
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Americas Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
"Feature Information for Broadband Scalability and Performance" section on page
PPP Sessions and L2TP Tunnel Scaling, page 2
IP Sessions Scaling, page 3
Layer 4 Redirect Scaling, page 4
Configuring the Cisco ASR 1000 Series Router for High Scalability, page 4
Using the cisco-avpair="lcp:interface-config" RADIUS Attribute, page 7
Walk-by User Support for PWLAN in ISG, page 9
12.