[cisco-voip] TFTP option 150

[Nick Marus]

What determines a TFTP server as unresponsive? no ping? no tftp connection?
i have a setup that I am testing where I purposefully specify a bad tftp
address as the first device in the option 150 array. (to proove tftp
failover to a cust) The phones see both TFP addresses, but will refuse to
register. All i get is the time and the horizontal lines. No DN's, no
softkeys, no registration. I change the order of the ip addresses in the
DHCP server, reboot the phone and it loads just fine. Changing dhcp 150 back
(bad ip first), reboot phone, back to nothing.

Any idea's/tips?

I'm using 7941 IP phones on a CM 6.1.2.

Nick

On Mon, Sep 15, 2008 at 3:03 PM, Wes Sisk <wsisk at cisco.com> wrote:

>  opt 150 is an array of ip addresses.
>
> actual behavior varies slightly by endpoint (2nd gen, 3rd gen, polycom,
> tandberg,...)
>
> 2nd gen phones set the bar -
> phone always attempts first TFTP server.  If unresponsive then try next
> TFTP server in the array.
>
> /Wes
>
> On 9/15/2008 3:18 PM, Scott Voll wrote:
>
>  does anyone know how the TFTP Option 150 works?  does it start to finish,
> round robin, random, circular?
>
> The ideas is I have a DHCP scope with option 150 ip x.x.x.x x.x.x.y x.x.x.z
>
> I want to make sure that the phone use x and y and never get to z.
>
> but I have a second application that will fail x and y and download from z.
>
> is this going to work?
>
> Thanks
>
> Scott
>
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-- 
Nick Marus
nmarus at gmail.com
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