Recently we upgraded the memory and the IOS image in our 1720 routers from 12.1.1 to 12.2.4(T1). We thus had to upgrade the memory to 8 MB flash and 32 MB RAM. Not realizing the 16MB RAM that came with the router was onboard, we ordered a 32MB DRAM card to go in the DIMM slot and thus we have 48MB RAM total. I have yet to figure out the command that shows me that the router sees the newly inserted 32MB DRAM. When I do a show version, I still only see the original 16MB RAM. How can we know for sure that this RAM is not defective?
Also, when upgrading we changed the console baud rate to 115200 and decided to just leave it that way. Now we cannot telnet into the router, but the console baud rate shouldn't affect this, right?
DId you get a cisco official memory upgrade (part # MEM1700-32D=) or a third party memory module?
You can issue a 'show version' to see memory like you did. I would reseat the new memory DIMM just in case it may not be seated good enough.
The baud rate shouldn't have any effect on the telnet session, but if the new 12.2(4)T1 image did load up with the 16meg DRAM you have there may not be enough resources available for the telnet session or other processes to run since 32meg is the min. memory required per the cisco page.
There was no 16MB DRAM to be replaced. The DIMM slot was empty and I read in some documentation that the 1720s had 16 MB RAM onboard. Thus, we just added 32MB more to the DIMM slot. So we should now have 48 MB RAM. I guess we will try another stick of RAM to test if the first one is bad.
2nd issue..yes we can still console into the router, and we can ping it remotely. The weird thing is that I know we were telneted into it once after install and upgrade and it seemed to work fine. That is when I issued the show version and noticed that I couldn't see the added RAM. Then I went to telnet to it again maybe an hour later and nothing. Any other thoughts? It is a remote site and we are sending a technician there today to try and first reseat the memory and then if that doesn't work, try another memory card.
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