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7-2
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 7 Broadband Scalability and Performance
PPP Sessions and L2TP Tunnel Scaling
Table 7-2 lists the virtual circuit limits for ASR 1000 ATM SPAs, effective from Cisco IOS XE
Release 3.5.
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:
–
Intelligent Services Gateway (ISG) Services are not supported
Table 7-1 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
1001-X Integrated 2.5G, 5G, 10G, or
20G
8000 4000
1002 Integrated
RP1
ESP-5G 12000 6000
1002-X Integrated 5G, 10G, 20G, or
36G
29000 16000
1004, 1006 RP1 ESP-10G or
ESP-20G
24000 12000
1004, 1006 RP2 ESP-20G 32000 16000
1004, 1006, 1013 RP2 ESP-40G 32000
1
, 48000, or 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 7-2.
16000
1006 RP2 ESP-100G 58000 16000
1013 RP2 ESP-200G 58000 16000
Table 7-2 ASR 1000 ATM Virtual Circuit (VC) Limits
ASR1000-SIP10 ASR1000-SIP40
SPA/SIP Number of VCs SPA/SIP Number of VCs
SPA-1XOC12-ATM-V2 4000 VCs per Port,
4000 VCs per SPA
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-1XOC3-ATM-V2 4000 VCs per Port,
4000 VCs per SPA
SPA-3XOC3-ATM-V2 3000 VCs per Port,
9000 VCs per SPA
SPA-3XOC3-ATM-V2 4000 VCs per Port,
12000 VCs per SPA
ASR1000-SIP10 24000 VCs per SIP ASR1000-SIP40 32000 VCs per SIP