Cisco Systems 1000 Series Manual De Usuario

Point-to-Point Protocol over ATM (PPPoA) and Point-to-Point Protocol over Ethernet 
(PPPoEoA) sessions are not supported 

RP2 requires 16 GB DRAM to support 48000 sessions

If any of the listed restrictions is not met, the router scales to a maximum of 32000 sessions 
only.

Restrictions on the 64000 session scaling with RP2 and ESP-40G: 

ISG services are not supported 

PPPoA and PPPoEoA sessions are not supported 

Per-session QoS with queuing actions (for example, shaping) is not supported

RP2 requires 16 GB DRAM to support 64000 sessions

If any of the listed restrictions is not met, the router scales to a maximum of 32000 sessions 
or 48000 sessions only.

Restrictions on 64000 L2TP tunnel scaling with RP2 and ESP-40G:

ISG services are not supported

Per-session QoS is not supported

RP2 requires 16 GB DRAM

High Availability (SSO) is not supported

If any of the listed restrictions is not met, the router scales to a maximum of 16000 L2TP 
tunnels.

The RP2 and ESP10 hardware combination is not supported for broadband.

RP1 with 2GB of DRAM is not recommended for broadband deployment.

The Cisco ASR 1000 Series Routers provide powerful performance and scalability for embedded 
services.

To achieve maximum scaling on the 1001, 1002, and 1004 chassis, IOS software redundancy must be 
disabled. For more information about restrictions and limitations, see the 

To ensure high scalability on the Cisco ASR 1000 Series Aggregation Services Router, perform the 
following configuration tasks: