Cisco ASR1002 Configuration Guide - Page 238

Layer 4 Redirect Scaling Broadband Scalability and Performance Table 20 Maximum Number of IP Sessions Supported on ASR 1000 Hardware (continued) Chassis RP 1004, 1006 RP1 1004, 1006, 1013 RP2 ESP ESP-10G or ESP-20G ESP-20G or ESP-40G IP Session 24000 32000 ISG Traffic Class 72000 96000 Note RP1 with 2GB DRAM is not recommended for IP sessions deployment. Layer 4 Redirect Scaling The ASR 1000 supports the ability to redirect IP traffic within an ISG traffic class. Layer 4 redirect scaling is performed by the Quantum Flow Processor (QFP). The scaling limits are dependent on the ESP. Table 21 lists the ESP and the default per-session limit. Table 21 Maximum Number of Per-Session Limit Per ESP ESP ESP-2.5G ESP-5G ESP-10G ESP-20G ESP-40G L4 Redirect Translations 256K 256K 512K 1 Million 1 Million Default Per-Session Limit 128 128 128 128 128 Configuring the Cisco ASR 1000 Series Router for High Scalability 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 "Restrictions for PPP Sessions and L2TP Tunnel Scaling" section on page 2. To ensure high scalability on the Cisco ASR 1000 Series Router, perform the following configuration tasks: • Configuring Call Admission Control, page 5 • Control Plane Policing, page 5 • VPDN Group Session Limiting, page 6 • PPPoE Session Limiting, page 6 Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide 4