[cisco-voip] Issues with Peer Firmware Update, anyone?

Thu Jul 15 20:31:51 EDT 2010

This part of the second URL rocks!I hadn’t read this info about 8900/9900 before.

Additional Improvements

The Cisco Unified IP Phones 7900 Series is unusable during an upgrade. This fact makes reducing the upgrade time even more important for providing voice services to users. With the recent release of the Cisco Unified IP Phones 8900 and 9900 models, the firmware update process has been changed to minimize the downtime of a phone during upgrade. The newer Cisco Unified IP Phones 8900 and 9900 models perform a firmware upgrade as a background process and the phone continues normal operations. The new firmware is stored as an inactive image on the phone, and then when validated, the phone restarts and switches to the new firmware image. This process limits the service outage of the phone to 1-2 minutes (while restarting). The background downloading of a new firmware does not exclude the newer phones from taking advantage of the Peer Firmware Sharing feature. You can use both to greatly reduce the total time for all phones to upgrade

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ahmed Elnagar
Sent: Thursday, July 15, 2010 7:20 PM
To: STEVEN CASPER
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Issues with Peer Firmware Update, anyone?

Sorry I mixed this with another feature…but I found why I have negative feedback about it and decided before not to use it as much as I can:

https://supportforums.cisco.com/message/3062951

but as per Cisco document below they says that it is the best choice for firmware upgrade…I just remember a limitation of the number of phones that can connect to a root phone at a time and that was a silly limitation but I cannot find any document right not that talks about this number; I remember that the subnet needed to be very small in order to have all phones upgrade using PFS

See Cisco link
http://www.cisco.com/en/US/partner/prod/collateral/voicesw/ps6882/ps6884/white_paper_c11-583891_ps10453_Products_White_Paper.html

have you tested it with a large number of phones in the same subnet?

 Best Regards;
  Ahmed Elnagar
  Senior Network PS Engineer
  Mob: +2019-0016211
  CCIE#24697 (Voice)
 [cid:image001.jpg at 01CB245C.C15BA130]

From: STEVEN CASPER [mailto:SCASPER at mtb.com]
Sent: Friday, July 16, 2010 1:43 AM
To: Ahmed Elnagar; ROZA, Ariel
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Issues with Peer Firmware Update, anyone?

What kind of problems?? Please be specific, I just googled "cisco telephone peer firmware update problems" and did not see anything of note.

I am planning on implementing this on my 7.1.5 cluster to hopefully speed up firmware updates. I tested this option in our lab using a test bed of 15 telephones and it resulted in a significant reduction in bandwidth utilized and time required to upgrade and down grade 7962 telephones. I experienced no issues in my testing.

Steve

>>> Ahmed Elnagar <ahmed_elnagar at rayacorp.com<mailto:ahmed_elnagar at rayacorp.com>> 7/15/2010 5:19 PM >>>
Google it you will find a lot of people facing problems with it…if the number of phones is not a big issue let it upgrade one by one from CUCM…otherwise go for peer method as it may have been enhanced in new codes.

 Best Regards;
  Ahmed Elnagar
  Senior Network PS Engineer
  Mob: +2019-0016211
  CCIE#24697 (Voice)
 [cid:image001.jpg at 01CB245C.C15BA130]

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of ROZA, Ariel
Sent: Tuesday, July 13, 2010 12:19 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Issues with Peer Firmware Update, anyone?

Hi, guys!

  Did anyone have any bad experiences using the Peer Firmware Update feature? I am planning to upgrade a 6.1(3) cluster to 6.1(5)

Regards,

ARIEL ROZA
Advanced Engineering

LOGICALIS
Perú 327 1er Piso - C.A.B.A. - Argentina - C1067AAG
Tel/Fax: +54 (11) 4344-0300
ariel.roza at la.logicalis.com<mailto:ariel.roza at la.logicalis.com>
www.la.logicalis.com<http://www.la.logicalis.com>
www.logicalisnow.com<http://www.logicalisnow.com>

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