[cisco-voip] BE5K to BE6K upgrade

[Erick Bergquist]

How many phones are you resetting with the rollback set to true on old
cluster?

You want to make sure ALL the phones reset and get the clear ITL file. You
may want to do them in batches of 50-100 at a time and make sure they
unregister and re-register. I know it sounds paranoid, but I've seen where
all phones don't reset when your doing a lot of phone resets at the same
time.

Also migrate a handful over to start to make sure things are fine (set
alternate TFTP, etc) before doing all the phones.

Be prepared to have to deal with a small % of phone/endpoint issues.




On Thu, Apr 3, 2014 at 9:17 PM, Mehtab Shinwari <mshinwari at fidelus.com>wrote:

> Russell,
>
> So when you change the parameter thats one rest to clear the ITL.
>
> The second reset will be once you cutover. During the second reset it will
> first download the ITL and then do a mini-reset of its own before pulling
> the files from the tftp. The mini-reset is pretty quick but a required step
> so that the right certs/hash is applied.
>
> I do not see the need for a third reset since the firmware is remaining
> the same post upgrade.
>
> Good luck.
>
> Regards
>
>
> Mehtab Shinwari | CCNP RS/V
> Senior Support Engineer
>
>
>
> -------- Original message --------
> From: Russell Chaseling <rchaseling at plannet21.ie>
> Date:
> To: "cisco-voip (cisco-voip at puck.nether.net)" <cisco-voip at puck.nether.net>
> Subject: [cisco-voip] BE5K to BE6K upgrade
>
>
> Hi,
>
> About to do one of these upgrades and following Cisco's official guide.
> Customer is looking for a seamless cutover as they are 24hour. I've got all
> the phone firmware identical etc . Part of the process is changing the
> "Prepare Cluster for Rollback to pre 8.0 Required Field" to True and
> resetting all the phones to clear the ITL file so they will register to the
> new CUCM. I've got a window to reset all these phones in advance but my
> question is will the phones reset again when I cut over to the new CUCM ?
> I'm assuming they will see the new Call Manager and pull down the new ITL
> file and reset? Or will I have to reset the phones after manually?
>
> IF anyone has done one of these upgrades I'd love to know any gotchas?
>
> Thanks
> Russell
>
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