Cisco Cisco IOS XE Software Release 2

The following features were introduced in Cisco IOS XE Release 2.5. Links to feature documentation 
are also included. 

Feature guides may contain information about more than one feature. To find information about a 
specific feature within a feature guide, see the Feature Information table at the end of the guide. 

Feature guides document features that are supported on many different software releases and platforms. 
Your Cisco IOS software release or platform may not support all the features documented in a feature 
guide. See the Feature Information table at the end of the feature guide for information about which 
features in that guide are supported in your software release. Use Cisco Feature Navigator to find 
information about platform support and Cisco IOS and Catalyst OS software image support. To access 
Cisco Feature Navigator, go to

. An account on Cisco.com is not required.

For the latest feature information and caveats, see the release notes for your platform and software 
release: 

See the following sections for a list of features:

The 1-Port Clear Channel OC-12 ATM SPA is a single-height ATM SPA that can be installed into one 
SIP subslot. 

Cisco10GBASE-SR XFP transceiver module for MMF, 850-nm wavelength, dual LC connector 
(XFP-10G-MM-SR)—Supported with the 1-Port 10-Gigabit Ethernet SPA (SPA-1X10GE-L-V2) 
only on the Cisco ASR-1002, Cisco ASR-1004, and Cisco ASR-1006 routers.