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

Thu Jul 15 20:13:40 EDT 2010

I have did it before with 11,000 phones “I mean CUCM upgrade” about 9000 phone was in HQ and the others were on about 200 branch; largest site had 200 IP phone and I was working with the tftp method but I had to open the voice vlan for branch one by one in order not to cause a problem for WAN links.

Waiting your feedback when tested…good luck J

 Best Regards;

  Ahmed Elnagar

  Senior Network PS Engineer

  Mob: +2019-0016211

  CCIE#24697 (Voice)

From: STEVEN CASPER [mailto:SCASPER at mtb.com] 
Sent: Friday, July 16, 2010 2:54 AM
To: Ahmed Elnagar
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Issues with Peer Firmware Update, anyone?

Thanks for the links, I see this as being useful at branch sites that have 10-20 phones and a 512K link. We have over 800 of these and firmware upgrades related to the CUCM upgrade process can take quite a while. 

Have not had a chance to test this at a large location but I will post results when I do.

Steve. 

>>> Ahmed Elnagar <ahmed_elnagar at rayacorp.com> 7/15/2010 7:19 PM >>>

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)

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> 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)

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
www.la.logicalis.com
www.logicalisnow.com

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