What software are the Cisco 4000 Series ISRs capable of running?
The 4000 Series ISRs run Cisco IOS XE Software. The initial version will be Cisco IOS XE Software Release 3.9.1. The 4300 and 4431 ISRs were released with Cisco IOS XE Software Release 3.13, and the 4200 Series ISRs were released with Cisco IOS XE Software Release 16.4.1.
Do the 4000 Series ISRs run a software release similar to the one on the Cisco ASR 1000 Series?
Yes. The 4000 Series ISRs are similar to the Cisco ASR 1000 Series in terms of the software releases that they run.
Are the Cisco ASR 1000 Series Shared Port Adapter (SPA) cards supported on the 4000 Series ISRs?
No. SPAs are not compatible with the 4000 Series ISRs.
Can the NIMs or service modules available on the Cisco 4000 Series work on the Cisco ASR 1000 Series?
The service modules will work with the Cisco ASR 1000 Series. Select NIMs will also work with the ASR 1000 Series.
Cisco ISR4331
Can I use the enhanced high-speed WAN interface cards (EHWICs) available on the Cisco 1900, 2900, and 3900 Series ISRs on the Cisco 4000 Series ISRs?
EHWIC modules available on the Cisco ISR Generation 2 (ISR G2) routers will not work with the 4000 Series ISRs. The 4000 Series is targeted at new branch-office environments requiring high bandwidth and greater application performance, making most EHWICs unapplicable. Also, the newer NIM architecture allows for faster, more capable modules on a high-end platform.
Can I use the Cisco Enhanced Service T3/E3 module (SM-X-1T3/E3) available on the Cisco 2900 and 3900 Series ISRs on the 4000 Series ISRs?
Yes, the Cisco Enhanced Service T3/E3 module is supported on the 4000 Series ISRs.
What memory upgrade options are available on the Cisco 4000 Series?
The 4000 Series has separate data and control-plane memory. The control-plane memory comes with 4 GB as the default, and is upgradable up to 16 GB based on various platforms. The data-plane memory comes with 2 GB as the default and is not currently upgradable.
