Cisco ASR1006 Configuration Guide - Page 236
PPP Sessions and L2TP Tunnel Scaling, Restrictions for PPP Sessions and L2TP Tunnel Scaling - 10g
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PPP Sessions and L2TP Tunnel Scaling Broadband Scalability and Performance PPP Sessions and L2TP Tunnel Scaling The ASR 1000 Series Routers are deployed in a variety of broadband deployment models for terminating Point-to-Point Protocol (PPP) Sessions and initiating or terminating Layer 2 Tunneling Protocol (L2TP) tunnels. The maximum number of PPP sessions and L2TP tunnels is dependent on the hardware combination. Table 18 lists the hardware combinations and the maximum number of PPP sessions and L2TP tunnels that are supported in Cisco IOS XE Release 3.3. For information about the restrictions for PPP sessions and L2TP tunnel scaling, see the "Restrictions for PPP Sessions and L2TP Tunnel Scaling" section on page 2. Table 18 Maximum Number of PPP Sessions and L2TP Tunnels Supported on ASR 1000 Hardware Chassis RP ESP PPP Session L2TP Tunnel 1001 Integrated ESP-2.5G or ESP-5G 8000 4000 1002 Integrated ESP-5G RP1 12000 6000 1004, 1006 RP1 ESP-10G or 24000 ESP-20G 12000 1004, 1006 RP2 1004, 1006, 1013 RP2 ESP-20G ESP-40G 32000 320001, 48000, or 64000 16000 64000 1. 32000 session scaling with RP2 and ESP-40G is fully supported without any additional restrictions. For restrictions on 48000 and 64000 see the "Restrictions for PPP Sessions and L2TP Tunnel Scaling" section on page 2. Table 19 lists the virtual circuit limits for ASR 1000 ATM SPAs, effective from Cisco IOS XE Release 3.5. Table 19 ASR 1000 ATM Virtual Circuit (VC) Limits ASR1000-SIP10 SPA/SIP Number of VCs SPA-1XOC12-ATM-V2 4000 VCs per Port, 4000 VCs per SPA SPA-1XOC3-ATM-V2 4000 VCs per Port, 4000 VCs per SPA SPA-3XOC3-ATM-V2 3000 VCs per Port, 9000 VCs per SPA ASR1000-SIP10 24000 VCs per SIP ASR1000-SIP40 SPA/SIP SPA-1XOC12-ATM-V2 SPA-1XOC3-ATM-V2 SPA-3XOC3-ATM-V2 ASR1000-SIP40 Number of VCs 4000 VCs per Port, 4000 VCs per SPA 4000 VCs per Port, 4000 VCs per SPA 4000 VCs per Port, 12000 VCs per SPA 32000 VCs per SIP Restrictions for PPP Sessions and L2TP Tunnel Scaling This section lists the restrictions for the PPP sessions and L2TP tunnel scalability. • To achieve maximum scaling for the 1001, 1002, and 1004 chassis, we recommend software redundancy be disabled for broadband applications, and only hardware redundancy be configured. • Restrictions on 48000 session scaling with RP2 and ESP-40G include: Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide 2