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Cisco 2600 Series Multiservice Platforms

New Memory Capacity on Cisco 2600XM Series Multiservice Router

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Q. What exactly is Cisco Systems ® announcing?
A. 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.

Q. When will these changes start shipping with the Cisco 2600XM Series?
A. Systems are now shipping with the new ROMmon and, if upgraded to 128 MB of DRAM or shipped as a bundle, will have the new 128-MB DIMM in slot one and an open slot for future growth.
Q. Why are we making these changes?
A. 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

Q. How can you tell if you have a unit with the 128-MB DIMM and/or ROMmon change?
A. There are few ways to confirm the changes:

• Look for serial numbers greater than JPE0808120Q, JMX0807L3MM, or JHY0809K0K7

• Use the "C2600" command-line interface (CLI) to view memory type in the router

• Look for the assembly part number on the outside of the router shipping container with the last digits "02" (for example, 800-20044-02)

Q. Are memory defaults on the Cisco 2600XM Series being changed?
A. The default memory currently available on chassis and bundles for all Cisco 2600XM Series models (including AC, DC, and redundant power supply) is not changing and will continue to ship as published. This includes both DRAM and Flash memory.
Q. Are there any changes to the base chassis or bundle list prices on the Cisco 2600XM Series based on the new memory?
A. No. Base and bundle list prices remain the same. The new 128-MB DIMM is only provided when 128 MB of memory is ordered or required. The new ROMmon is included as part of the overall chassis list price.
Q. Can existing Cisco 2600XM Series units in the field be upgraded with the new 128-MB DIMM and ROMmon?
A. Yes. The 128-MB DIMM can be used on all existing Cisco 2600XM Series units in the field. In addition, the ROMmon is field-upgradable. MEM2600XM-128DBOT= provides one 128-MB DIMM and new ROMmon (the same process used in increasing the Cisco 2620 and 2621 multiservice platforms to 32-MB Flash memory). Please note that if two 128-MB DIMMs are used, the new ROMmon is required for the router to use more than 128 MB of memory when future Cisco IOS Software releases support memory past 128 MB.
Q. Will the 32-MB or 64-MB DRAM DIMM for the Cisco 2600XM Series reach end of sale?
A. No. However, the 128-MB DIMM is priced higher than the 64-MB DIMM and customers will benefit from migrating to the 128-MB DIMM.
Q. Can customers use this new 128-MB DIMM on the older Cisco 2600 Series multiservice platforms, such as the Cisco 2612 Multiservice Platform?
A. No. This is only for the Cisco 2600XM Series. The Cisco 2691 Multiservice Platform already supports a 128-MB DIMM, which is not interchangeable.
Q. Will the Flash memory capacity on the Cisco 2600XM Series change also?
A. No. The current Flash memory capacity will not change and the capacity remains up to 48 MB.
Q. When will customers receive the 128-MB DIMM with their orders?
A. Only when the orders require 128 MB of default memory (for example, Cisco 265x Multiservice Router), bundles that have a default of 128 MB of DRAM and upgrades requiring 128 MB of DRAM. The Cisco 261x and Cisco 262x chassis with default memory will not receive the 128-MB DIMM, but will ship with the new ROMmon. Cisco 261x and Cisco 262x chassis will only receive the 128-MB DIMM if customers upgrade to 128 MB.
Q. When will Cisco IOS Software recognize and support more than 128 MB of memory?
A. Cisco IOS Software is planned to start supporting and recognizing more than 128 MB of DRAM starting with a future IOS Release that is scheduled for October, 2004 or sooner and includes the new ROMmon. Until then additional memory up to 256 MB of DRAM can be added for future use, but only 128 MB will be used.
Q. What is the final IOS software version supported on the 2600XM series routers?
A. 12.4(15)T, it is also very highly recommended that SmartInit be used when using this version of software, to insure proper operation.

New Part Numbers for 128-MB Dimm

Q. What are the part numbers for ordering the new 128-MB DIMM?
A. Table 1 provides the part numbers. There is no MEM2600XM-128U192D or MEM2600XM-96U192D and no plans to create those part numbers. Refer to the Pricing Tool "Cisco Product Price List" for more information.

Table 1. 128-MB DIMM and ROMmon Part Numbers

Part Number

MEM2600XM-128D=

MEM2600XM-128DBOT=

MEM2600XM-128U160D

MEM2600XM-128U256D

MEM2600XM-96U256D

*BOOT-2600XM-256=

* Includes ROMmon only, no memory included

Table 2. 64-MB DIMM Part Numbers

Part Number

MEM2600XM-64D=

MEM1700-64D=

MEM170-64U128D

CLI Overview

Q. What will the CLI commands today indicate? Can you provide examples on how the memory is recognized with these changes?
A. CLI Commands defined currently with Cisco IOS Software Releases 12.3 Mainline and Release 12.3 T images and past images:

• Show Version-Always shows memory in chassis based on running image (for example, with 96-MB to 64-MB and 32-MB DIMM, shows 96 MB)

• Show C2600-Always shows specific physical memory in each slot (for example, DIMM slot 0-64 MB, DIMM slot 1-32 MB)

• Show MEM-Shows amount of processor memory that can be used by system (based on software image and release, and varies based on image)

Commands using more than 128 MB with old ROMmon, current Cisco IOS Software Release 12.3 Mainline and Release 12.3 T images, and previous software images:

• Show Version-Always shows memory in chassis based on running image (for example, with 128-MB DIMM shows 128, 160-MB shows 128, memory greater than 128 MB is not usable)

• Show C2600-Always shows specific physical memory in each slot (for example, DIMM slot 0-128 MB, DIMM slot 1-32 MB)

• Show MEM-Shows amount of processor memory that can be used by system (based on software image and release, and varies based on image)

Commands using more than 128 MB (160 MB) with the new ROMmon, current Cisco IOS Software Release 12.3 Mainline and Release 12.3 T images, and previous software images:

• Show Version-Always shows memory in chassis based on running image (for example, with 128-MB DIMM shows 128, 160-MB shows 128, memory greater than 128 MB is not usable)

• Show C2600-Always shows specific physical memory in each slot (for example, DIMM slot 0-128 MB, DIMM slot 1-32 MB)

• Show MEM-Shows amount of processor memory that can be used by system (based on image and release, and varies based on image)

Commands using more than 128 MB (160 MB) with the new ROMmon and future Cisco IOS Software images (scheduled for October 2004) that support up to 256 MB:

• Show Version-Always shows memory in chassis based on running image (for example, with 128-MB DIMM shows 128, 160-MB shows 160)

• Show C2600-Always shows specific physical memory in each slot (for example, DIMM slot 0-128 MB, DIMM slot 1-32 MB)

• Show MEM-Shows amount of processor memory that can be used by system (based on image and release, and varies based on image) (Previously as the image size increased the amount of usable processor memory would decrease. With the additional memory, new ROMmon and future Cisco IOS Software changes, the processor memory remains constant as image size increases.)

For More Information

For more information about the Cisco 2600 Series, visit: