User guide

Release Notes for Cisco IOS Release 12.4T

OL-8012-09 Rev. B0

Platform-Specific Information

Cisco 800 Series Routers

This section contains the following sections with information that is specific to the Cisco 800 series

routers:

• Memory Recommendations, page 18

• Supported Hardware, page 18

• Feature Support, page 19

• Additional Notes for the Cisco 800 Series, page 19

Memory Recommendations

For memory recommendations for the Cisco 800 series routers in Cisco IOS Release 12.4T, see the

“Memory Recommendations” section on page 8.

Supported Hardware

Cisco IOS Release 12.4T supports the following Cisco 800 series routers:

• Cisco 815

• Cisco 830 (Cisco 831, Cisco 836, Cisco 837)

• Cisco 850 (Cisco 851, Cisco 857)

• Cisco 861

• Cisco 870 (Cisco 871, Cisco 876, Cisco 877, Cisco 878)

• Cisco 881 (Cisco 881, Cisco 881G, Cisco IAD881F, Cisco IAD881B, Cisco SRST881)

• Cisco 887 (Cisco 887V)

• Cisco 888 (Cisco 888, Cisco 888G, Cisco IAD888F, Cisco IAD888B, Cisco SRST888)

Note In Cisco IOS Release 12.4(11)T, there is a 30%+ increase in CPU utilization that is seen between

Cisco IOS Release 12.4(9)T and Cisco IOS Release 12.4(11)T for the Cisco 870 series routers.

Note The Cisco 815 router is supported in Cisco IOS Release 12.4(11)T and Release 12.4(15)T. The

Cisco 830 and Cisco 850 series routers are not supported in Cisco IOS Release 12.4(20)T and later

releases. The Cisco 861, Cisco 881 series and Cisco 888 series routers are supported in Cisco IOS

Release 12.4(20)T and later releases. Cisco 887 series routers are supported in Cisco IOS

Release 12.4(24)T.

For detailed descriptions of the new hardware features, see the “New and Changed Information” section

on page 101.

For additional information about supported hardware for this platform and release, see the

Cisco Software Advisor at the following location:

http://tools.cisco.com/Support/Fusion/FusionHome.do