Ip Sessions Scaling; Layer 4 Redirect Scaling; Configuring The Cisco Asr 1000 Series Router For High Scalability - Cisco ASR1000-RP1 - ASR 1000 Series Route Processor 1 Router Software Configuration Manual

Chapter 6 Broadband Scalability and Performance

IP Sessions Scaling

The ASR 1000 Series Routers can be deployed as an IP session aggregator. The maximum number of IP
sessions that can be supported depends on the hardware combination.
combination and the maximum number of IP sessions that are supported.
The session limits apply to all variety of IP session initiators: DHCP, unclassified Mac address,
unclassified IP, and RADIUS proxy.
Table 6-2
Chassis
1001
1002
1004, 1006
1004, 1006, 1013
Note RP1 with 2GB DRAM is not recommended for IP sessions deployment.

Layer 4 Redirect Scaling

The ASR1000 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 6-3
ESP
ESP-2.5G
ESP-5G
ESP-10G
ESP-20G
ESP-40G
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
and L2TP Tunnel Scaling" section on page
OL-16506-10
Maximum Number of IP Sessions Supported on ASR 1000 Hardware
RP
Integrated
Integrated RP1
RP1
RP2
Table 6-3 lists the ESP and the default per-session limit.
Maximum Number of Per-Session Limit Per ESP
L4 Redirect Translations
256K
256K
512K
1 Million
1 Million
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
ESP
ESP-2.5G or ESP-5G
ESP-5G
ESP-10G or ESP-20G
ESP-20G or ESP-40G
Default Per-Session Limit
128
128
128
128
128
6-2.
IP Sessions Scaling
Table 6-2 lists the hardware
IP Session ISG Traffic Class
8000 24000
12000 36000
24000 72000
32000 96000
"Restrictions for PPP Sessions
6-3