[cisco-voip] Upgrading firmware on 7961 remotly

[Scott ODonnell]

Craig,

Provided you aren't loosing packets on the line, this should work.
I've done a couple of upgrades across lines with RTT like the ones you are
talking about.

A couple of things I would look at.

- Make sure you are not dropping packets on the connection. TFTP/ UDP
download will fail if you have a faulty connection.
- Make sure you are prioritizing the traffic on the line to/from the
phone/CM. At least while you are attempting to upgrade.
- Make sure you only do 1 - 2 phones at a time as a test. The TFTP Server
will throttle requests if it gets too many at once.
- Look at the router configurations. I remember someone about NAT causing a
problem with the phones doing firmware transfers.

I've had a phone firmware upgrade take over 1 1/2 hours for 450 phones all
rebooted at once. That was with all the phones locally connected on the same
L2 network.

- Scott



On 8/14/06, Craig M Staffin <CMStaffin at ra.rockwell.com> wrote:
>
>
> Would love to however by the time we are done with our rollout we will
> have about 350 sites across the globe so if we have to setup seperate TFTP
> servers at each location that is  HUGE administration nightmare.
>
> So we need it to be centralized to some extent
>
> Craig
>
>
>   *"Mike Mike" <voipermike at gmail.com>*
>
> 08/14/2006 04:06 PM
>    To
> "Craig M Staffin" <CMStaffin at ra.rockwell.com>  cc
>   Subject
> Re: [cisco-voip] Upgrading firmware on 7961 remotly
>
>
>
>
> How about sending the firmware load over there and having someone setup a
> temporary TFTP server.  There is plenty of freeware out there.
>
> On 8/14/06, *Craig M Staffin* <*CMStaffin at ra.rockwell.com*<CMStaffin at ra.rockwell.com>>
> wrote:
>
> Group,
>
> We are doing a centralized CCM deployment.  Our Callmanagers are split
> between Milwaukee Wisconsin and Cleveland Ohio.  (Yes we meet the 40ms with
> no problems)
>
> However we are deploying sites in latin America now.  I just got done
> installing a site in Argentina off of one of our cluster based at the above
> locations.  there is about a 240ms RTT.
>
> Everything is working fine however when i try to update the firmware on
> the phones they are timeing out.  If I sniff the port i can see all the TFTP
> traffic come back to the phone and the phone does an ack back to the server.
>  However the phone never actually updates the firmware it just sits at
> verifying load for about 30 minutes then fails and goes to its old load.
>
> I have a TAC case open but TAC has not been able to help me in the least
> for the past week.
>
> Has anyone else seen this one???
>
> Thanks
>
> Craig
>
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