Ppp Sessions And L2Tp Tunnel Scaling - Cisco ASR1000-RP1 - ASR 1000 Series Route Processor 1 Router Software Configuration Manual

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.
This chapter provides information about the following topics:
•
•
•
•
•

PPP Sessions and L2TP Tunnel Scaling

The ASR 1000 Series Routers are deployed in a variety of broadband deployment models for terminating
Point-to-Point Protocol (PPP) Sessions and initiating or terminating Layer 2 Tunneling Protocol (L2TP)
tunnels. The maximum number of PPP sessions and L2TP tunnels is dependent on the hardware
combination.
L2TP tunnels that are supported in Cisco IOS XE Release 3.3. For information about the restrictions for
PPP sessions and L2TP tunnel scaling, see the
section on page
Table 6-1
Chassis
1001
1002
1004, 1006
1004, 1006
1004, 1006, 1013
OL-16506-10
PPP Sessions and L2TP Tunnel Scaling, page 6-1
IP Sessions Scaling, page 6-3
Layer 4 Redirect Scaling, page 6-3
Configuring the Cisco ASR 1000 Series Router for High Scalability, page 6-3
Using the cisco-avpair="lcp:interface-config" RADIUS Attribute, page 6-6
Table 6-1 lists the hardware combinations and the maximum number of PPP sessions and
6-2.
Maximum Number of PPP Sessions and L2TP Tunnels Supported on ASR 1000
Hardware
RP
Integrated
Integrated
RP1
RP1
RP2
RP2
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
C H A P T E R
"Restrictions for PPP Sessions and L2TP Tunnel Scaling"
ESP PPP Session
ESP-2.5G or 8000
ESP-5G
ESP-5G 12000
ESP-10G or 24000
ESP-20G
ESP-20G 32000
1
ESP-40G 32000
6
L2TP Tunnel
4000
6000
12000
16000
, 48000, or 64000 64000
6-1