Cisco 10000-2P2-2DC Software Guide - Page 71

Chapter 2 Scalability and Performance Configuring the Cisco 10000 Series Router for High Scalability Configuring Parameters for RADIUS Authentication If your network uses a RADIUS server for authentication, set the small, middle, and big buffers by using the buffers command. Table 2-4 lists the buffer sizes to configure (and see Example 2-3). Table 2-4 Buffer Small Middle Big Buffer Sizes for RADIUS Authentication Size 15000 12000 8000 Example 2-3 Configuring Buffer Sizes Router(config)# buffers small perm 15000 Router(config)# buffers mid perm 12000 Router(config)# buffers big perm 8000 Typically, if the RADIUS server is only a few hops away from the router, we recommend that you configure the RADIUS server retransmit and timeout rates by using the radius-server command. Table 2-5 lists the recommended settings (and see Example 2-4). Table 2-5 RADIUS Server Parameters Parameter RADIUS Server Retransmit Rate RADIUS Server Timeout Rate Value 5 15 Example 2-4 Configuring RADIUS Server Parameters Router(config)# radius-server retransmit 5 Router(config)# radius-server timeout 15 Configuring L2TP Tunnel Settings Configure an L2TP tunnel password using Cisco IOS Release 12.2(4)BZ1 or later. We recommend that you configure the L2TP tunnel parameters listed in Table 2-6 (and see Example 2-5, Example 2-6, and Example 2-7). Table 2-6 L2TP Tunnel Settings Parameter No Session Timeout L2TP Tunnel Receive Window L2TP Tunnel Retransmit Timeout Setting 30 100 2 (minimum) 8 (maximum) OL-2226-23 Cisco 10000 Series Router Software Configuration Guide 2-9