Cisco Cisco Physical Access Reader Module

Customers can buy a service-ready Cisco 2911, Cisco 2921, Cisco 2951, Cisco 3925, or Cisco 3945 
Series ISR G2 in which the module slots are already filled with Cisco ISM-SRE or SM-SRE modules. 
These modules may or may not have software already installed on them. Cisco SRE software supports 
this hardware-software decoupling, or PAY-GO model, by permitting you to provision and pay for 
software services separately from the hardware and after the services are deployed.

The Cisco SRE bootloader allows for greater flexibility and eliminates the requirement for a separate 
bootloader for each new application software to be installed. Cisco SRE supports installing and 
uninstalling Cisco-authorized software, such as Cisco Unity Express, Cisco Application eXtension 
Platform (Cisco AXP), and Cisco IP Video Surveillance using Cisco IOS software commands and 
prevents unauthorized software and applications from running on Cisco SRE modules.

If the Cisco SRE is not preinstalled in the host router at the factory, you must first install the Cisco SRE 
hardware in your host Cisco 2911, Cisco 2921, Cisco 2951, or Cisco 3900 Series ISR G2. To install the 
module, see the 

 or the 

, depending on whether your Cisco SRE is a 

Cisco ISM-SRE or an SM-SRE.

After installing the Cisco SRE hardware, use Cisco IOS commands to configure the Cisco SRE as an SM 
interface of the host router. To configure the Cisco SRE as an interface to the Cisco ISR G2, see the 

.

To install Cisco-authorized software applications on Cisco SRE modules, see the 

.

Cisco SRE also supports a common uninstall process across all supported software. To uninstall 
Cisco-authorized software applications on a Cisco SRE module, see the 

.

 lists those Cisco-authorized applications that are compatible with the Cisco SRE.

Cisco AXP

Cisco Unified SRSV-CUE

1

 release 8.0.2 and later versions

1.

Cisco Unified Survivable Remote Site Voicemail-Cisco Unity Express

Cisco Unity Express

Cisco UMG

2

 release 8.0.2 and later versions

2.

Cisco Unified Messaging Gateway

Cisco Video Management and Storage System

WAAS

3

3.

WAAS = Wide Area Application Services.