New Memory Capacity on Cisco 2600XM Series Multiservice Router

Two new features are being introduced on all Cisco® 2600XM Series multiservice routers. The first is a new 128-MB synchronous dynamic RAM (SDRAM) dual in-line memory module (DIMM) for use in all new and existing Cisco 2600XM Series multiservice routers. This new 128-MB DIMM offers higher-density memory, providing the ability to support memory increases to 256 MB of DRAM (with the correct ROM monitor [ROMmon]). All Cisco 2650XM Multiservice Router, Cisco 2651XM Multiservice Router, and Cisco 2600XM bundles and upgrades to 128 MB of DRAM are now shipping with one 128-MB SDRAM DIMM instead of two 64-MB SDRAM DIMMs. This allows for the second slot to remain open for future memory expansion up to 256 MB.

The second announcement is a new internal ROMmon on all Cisco 2600XM Series multiservice routers. This new ROMmon simply provides the "future ability" to upgrade the Cisco 2600XM Series to 256-MB DRAM. Currently the maximum memory used by Cisco IOS® Software is 128 MB. Some future Cisco IOS Software releases will use more than 128 MB of memory and will require this new ROMmon support to provide access to memory between 128 MB and 256 MB. Cisco IOS Software usage of more than 128 MB of SDRAM (in specific software images) is scheduled for October 2004 or sooner.

Changes are being made to address the following:

• Support for up to 256 MB of DRAM for future memory increases past Cisco IOS Software Release 12.3 Mainline

• Memory scalability for greater feature and service enhancements in Cisco IOS Software releases 12.4T and 12.5M

• Ability for customers to maximize memory capacity for future growth, without adding future service costs for adding memory at a later date.

• Commitment to Cisco 2600XM Series longevity