ISR大致可以分几类：
Cisco 860、880、890
ISR1800 (fixed)、1800 (modular)、2800、3800 Series
ISR1900、2900、3800、3900 Series
ISR4K
每一代的设备，设备的性能肯定都不一样，本摘要，将主要记录ISR的吞吐性能问题。
1、下图主要体现的是800 Series和1900、2900、3900 Series，常见建议的WAN最大throughput：
该参数，基本也可以从Datasheet中查询得到，如1900和2900：
Table 1. Key Features and Benefits of the Cisco 1921 Integrated Services Router
|
High performance with integrated services |
● The Cisco 1900 Series enables deployment in high-speed WAN environments with concurrent services enabled up to 15 Mbps. |
Table 1. Key Features and Benefits of the Cisco 1941 Integrated Services Router Series
|
High Performance with Integrated Services |
● The Cisco 1900 Series enables deployment in high speed WAN environments with concurrent services enabled up to 25 Mbps. ● Multi-Gigabit Fabric enables high bandwidth module to module communication without compromising routing performance. |
Table 1. Key Business Benefits of the Cisco 2900 Series Integrated Services Routers
|
High Performance with Integrated Services |
● The Cisco 2900 Series enables deployment in high speed WAN environments with concurrent services enabled up to 75 Mbps. ● A MultigiGabit Fabric (MGF) enables high-bandwidth module-to-module communication without compromising routing performance. |
2、下图主要针对ISR4K的WAN throughput：
Datasheet中也有记录：
Table 4. Specifications of Cisco 4000 Family Integrated Services Routers
|
Technical Specifications |
Cisco 4461 |
Cisco 4451 |
Cisco 4431 |
Cisco 4351 |
Cisco 4331 |
Cisco 4321 |
Cisco 4221 |
|
Aggregate Throughput (Default) |
1.5Gbps |
1 Gbps |
500 Mbps |
200 Mbps |
100 Mbps |
50 Mbps |
35Mbps |
|
Aggregate Throughput (Performance License) |
3Gbps |
2 Gbps |
1 Gbps |
400 Mbps |
300 Mbps |
100 Mbps |
75 Mbps |
|
Aggregate CEF Only[5] Throughput (Boost License) |
Over 7Gbps |
Over 4Gbps |
Over 4Gbps |
Over 2Gbps |
Over 2Gbps |
1.5Gbps |
1.2Gbps |
如果需要提升throughput，对license的需求如下：
Table 6. Cisco ISR 4000 Performance Licenses
|
Platform |
Performance-on-Demand License |
Features |
|
ISR4461 |
FL-4460-PERF-K9 |
Increases the performance from base performance 1.5 Gbps to 3 Gbps |
|
ISR4451 |
FL-44-PERF-K9 |
Increases the performance from base performance 1 Gbps to 2 Gbps |
|
ISR4431 |
FL-44-PERF-K9 |
Increases the performance from base performance 500 Mbps to 1 Gbps |
|
ISR4351 |
FL-4350-PERF-K9 |
Increases the performance from base performance 200 Mbps to 400 Mbps |
|
ISR4331 |
FL-4330-PERF-K9 |
Increases the performance from base performance 100 Mbps to 300 Mbps |
|
ISR4321 |
FL-4320-PERF-K9 |
Increases the performance from base performance 50 Mbps to 100 Mbps |
|
ISR4221 |
FL-4220-PERF-K9 |
Increases the performance from base performance 35 Mbps to 75 Mbps |
Table 7. Cisco ISR 4000 Booster (boost) Performance Licenses
|
Part number |
Description |
|
FL-4220-BOOST-K9 (=) |
Booster Performance License for 4220 Series Router |
|
FL-4320-BOOST-K9 (=) |
Booster Performance License for 4320 Series Router |
|
FL-4330-BOOST-K9 (=) |
Booster Performance License for 4330 Series Router |
|
FL-4350-BOOST-K9 (=) |
Booster Performance License for 4350 Series Router |
|
FL-4430-BOOST-K9 (=) |
Booster Performance License for 4430 Series Router |
|
FL-44-BOOST-K9 (=) |
Booster Performance License for 4450 Series Router |
|
FL-4460-BOOST-K9 (=) |
Booster Performance License for 4460 Series Router |