Tag Archives: dcnm

Cisco – Reset snmp user password

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More often than not, I have problems with Cisco MDS switches because I’ve done something stupid. For example, last week I replaced some switch configs but did something to the password for the snmp admin user. As a result, I could log into the switch with admin credentials, and I could see the switch in DCNM, but I couldn’t access it using SNMP credentials. It’s a simple fix, for I’m a simple fellow.

switch1# conf t
Enter configuration commands, one per line.  End with CNTL/Z.
switch1(config)# snmp-server user admin network-admin auth md5 yourpasswordgoeshere
switch1(config)# exit
switch1# copy run start
[########################################] 100%
Copy complete, now saving to disk (please wait)...
switch1#

Cisco – DCNM, why are you like this?

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I thought it would be a good idea to upgrade the copy of Cisco DCNM installed on my laptop (in standalone mode) from 5.2(2) to 6.1(1) the other day. I ran the 32-bit installer and got an error about “Upgradation” being unsupported from this mode.

dcnm_upgrade

This probably should have set off alarm bells. But I hadn’t read the release notes, and wasn’t really paying attention. So I dutifully uninstalled 5.2(2) and had another go at it.

dcnm_upgrade2

Sigh. I know that in production you wouldn’t be using a Windows 7 laptop to run this software. And I know that I should have carefully read the requirements before I attempted installation. If I had, I would have read this: “Cisco DCNM SAN Release 6.1(1a) and later releases do not support running the Cisco DCNM SAN client in standalone mode. If you were running the SAN client in standalone mode in Release 5.2(x), you should uninstall it and install Cisco DCNM SAN server Release 6.1(1a) or a later release. You cannot upgrade the standalone SAN client from DCNM Release 5.2(x) to Release 6.1(1a) or a later release”. But surely it could have popped up with this warning before telling me that I had to uninstall 5.2(2) first? DCNM developers have moved back to the top of my list. If they can’t code around my ignorance and laziness then I want no part of their product. And what the hell is “Upgradation” anyway?

Updated Articles page

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I’ve added a brief article covering the steps involved in installing the Cisco Prime DCNM in standalone mode – used for management and maintenance of Cisco fabrics. I had to re-install this software after a workstation replacement and thought it might be useful to document the steps required.