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How to load IOS image ans Cisco SDM with only 16384K bytes Memory

Hi Experts

I'm trying to make my old Cisco 1751 router usable again, and I wish to be abel to load both an IOS image and Cisco SDM and ig posible Cisco Unified Callmanager. but I only have 16384K bytes of memory, is it posible to upgrade the memory or load everything but the IOS from a TFTP server?

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Piet H. Pedersen
Routers

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2PiFL
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ASKER

Thank you very much for your reply.

I'v looked at the page you suggested, but as fare as I can see the only thing I can upgrade is the DIMM ram, would that solve my problem with not beeing able to fit the wanted software in the flash memory?

I'm a little confused aboudt, where the router uses what memory and what gets erased during a power failure.
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The IOS and SDM software are stored in flash.  The startup-config will reside in nvram.  The dimm will be used by the router for overhead and will be erased on a power failure.  Flash and NVRAM will not be erased during a power outage.

According to this document:
http://www.cisco.com/en/US/docs/routers/access/1700/1720/hardware/notes/1700UMem.html#wp1087299

You can have as much as 32M of flash.  The IOS and SDM will need to "fit" in flash.  
 
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ASKER

I only have 16Mb of flash, and the ios and sdm wont fit to flash, only one of them, so is it posible to launch SDM directly from tftp?
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Routers
Routers

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

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