[cisco-voip] Device pack installation methodology question

[Matthew Loraditch]

I believe it works like this:
The firmware updates immediately upon device package install, but isn't available until TFTP is restarted. The device defaults are updated as well. Just go into device defaults before you restart (since you do have to do a full restart for new device models to work) and change the settings back to your older versions.

Now the thing I am wondering is if any of the newer http enhancements to downloads change things with respect to firmware availability, but even then you'd still only have a few minute window between the install completing and you changing the fields back to what they were. I guess it really matters what your root concern with the other firmware is as to whether there is an acceptable risk where a few phones might upgrade and have to revert.


Matthew G. Loraditch - CCNP-Voice, CCNA, CCDA

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From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ryan Huff
Sent: Saturday, January 03, 2015 3:31 PM
To: Jeremy Bresley; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Device pack installation methodology question

Correct, ordinarily that would be what I would do as well. In this case though, I am trying to avoid upgrading the firmware on anything, other than the devices I am trying to get support for.

Thanks,

Ryan
________________________________
Date: Sat, 3 Jan 2015 14:20:43 -0600
From: brez at brezworks.com<mailto:brez at brezworks.com>
To: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Device pack installation methodology question
On 1/3/2015 2:11 PM, Ryan Huff wrote:
I need to install a device pack on a 2 node 9.1(2) CCM cluster to get support for some 88xx phones but I do not want to update the loads for anything else.

The approach I am going to use is:

Drop the publisher out of the CM Group, forcing all phones to the subscriber. Install the device pack on the publisher and reboot the publisher. Once the publisher is backup, set all the device defaults back to what I want them to be then add the publisher back to the CM Group. Then drop the subscriber from the CM Group forcing all the phones on the publisher and start the install process over for the subscriber. Once everything is back up add the subscriber back to the CM Group.

Does that sound reasonable or is there an easier way?

Any time I've needed device support I just install it on all the nodes then reboot them one at a time during a maintenance window.  As long as both nodes are running call processing, they'll fail over when the node reboots.  Not sure about on 9.X, but on 10.X this just shows as a blip on the phones of them reregistering, not a full reboot.  Obviously if you install new software for those phones, they'll upgrade software when they reboot.

Jeremy "TheBrez" Bresley
brez at brezworks.com<mailto:brez at brezworks.com>

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