User guide

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Release Notes for Cisco IOS Release 12.4T
OL-8012-09 Rev. B0
Platform-Specific Information
Cisco 2600XM Series and Cisco 2691 Modular Access Routers
This section contains the following sections with information that is specific to the Cisco 2600XM series
and Cisco 2691 modular access routers:
• Introduction, page 42
• Memory Recommendations, page 42
• Supported Hardware, page 42
• Other Firmware Code, page 49
• Feature Support, page 49
Introduction
With the Cisco 2600 series modular access router family, Cisco extends enterprise-class and managed
services CPE versatility, integration, and power to branch offices. The widely deployed Cisco 2600
series modular access routers are designed to enable customers to easily adopt future technologies and
scale to accommodate network expansion. The Cisco 2600 series shares modular interfaces with the
Cisco 1600, Cisco 1700, and Cisco 3600 series, providing a solution to meet the branch office needs for
applications such as the following:
• Internet/intranet access with firewall security
• Multiservice voice/data integration
• Analog and digital dial access services
• Virtual Private Network (VPN) access
• Inter-VLAN routing
• Routing with bandwidth management
The Cisco 2600 series modular architecture provides the versatility needed to adapt to changes in
network technology as new services and applications become available. Driven by a powerful RISC
processor, the Cisco 2600 series supports the advanced quality of service (QoS), security, and network
integration features required in evolving enterprise networks.
Memory Recommendations
For memory recommendations for the Cisco 2600 series modular access 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 2600 series routers:
• Cisco 2610XM and Cisco 2611XM
• Cisco 2620XM and Cisco 2621XM
• Cisco 2650XM and Cisco 2651XM
• Cisco 2691
For detailed descriptions of the new hardware features, see the “New and Changed Information” section
on page 101.