Cisco ASR1006 Configuration Guide - Page 244

Walk-by User Support for PWLAN in ISG Broadband Scalability and Performance Note For additional platform-independent restrictions pertaining to the walk-by sessions and information on how to configure the Walk-By User Support for PWLAN in ISG feature, refer to the following URL: http://www.cisco.com/en/US/docs/ios-xml/ios/isg/configuration/xe-3s/isg-wlkby-supp.html ISG Scaling to Support Lite Sessions This section provides the ISG scaling numbers for supporting walk-by session. Table 22 lists the hardware combinations and scale numbers for authenticated and walk-by users. The scale numbers provided in the Table 22 assume the following reference configuration: • Walk-by users: A maximum of three traffic classes on the default session. • Authenticated users: A maximum of three traffic classes per user, with accounting on each traffic class and L4R on a single traffic class. Any deviation from the conditions mentioned above may result in different scale numbers. Table 22 ISG Scaling Numbers Hardware Calls Per Second2 Walk-by Users1 Authenticated Users1 Walk-by Users Authenticated Users RP2/ESP40 128 K 48 K 135 15 RP2/ESP100 224 K 48 K 135 15 1. For a redundant system, after a route processor (RP) switchover, the existing configuration in a forwarding processor (FP) takes some time to be cleaned up while new configuration (for walk-by users) is applied at a faster rate. In this scenario, if the system operates at the maximum scale before the switchover, the system might exceed the resource limit. Therefore, it is advisable to run a redundant system at a reduced scale. 2. The calls-per-second rates mentioned in the Table 22 are the target-sustained rates. However, after events such as failover or reload, the rates might exceed these numbers for some period before falling back to the sustained values. Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide 10