[c-nsp] confreg 0x42 on a Sup32

[Graham Wooden]

Yup, that was the ticket. Thanks Tim!

-graham


On 7/31/09 11:06 AM, "Tim Stevenson" <tstevens at cisco.com> wrote:

> Hi Graham,
> 
> You need to do this from *both* rommons. The config reg is sync'd between RP &
> SP when you do a write mem, but if you are manually changing it from in the
> rommon, then each rommon is going to have an independent value.
> 
> Break to the SP, confreg 0x2142, reset, then wait for the RP rommon to take
> control, it's after this msg:
> 00:00:07: %OIR-SP-6-CONSOLE: Changing console ownership to route processor
> 
> Then break to RP, confreg 0x2142, and reset, the box should come up w/no
> running config (startup will still have everything).
> 
> Make sure to restore the config-register 0x2102 in config mode & write mem
> after you've changed the password.
> 
> Hope that helps,
> Tim
> 
> 
> 
> At 06:35 AM 7/31/2009, Graham Wooden asserted:
> 
>> Thanks Tim and Jesse for the replies.
>> 
>> Well, I only had a small window this morning to get this resolved and
>> both confregs from rommon didn't seem to bypass the config like I
>> wanted. Also tried just confreg with no args, and selecting it to
>> ignore the config with still no affect.
>> 
>> But as I type this, I did it from the SP rommon.  Should I have done
>> the break at the RP boot instead?
>> 
>> I will have another window this evening to get this resolved. Thanks
>> for any suggestions.
>> 
>> -graham
>> 
>> 
>> Quoting Tim Stevenson <tstevens at cisco.com>:
>> 
>>> > Hi Graham -
>>> >
>>> > The same rules for confreg that apply to the other c6k sups apply here
>>> > as well.
>>> >
>>> > Typical/recommended for sup32 is 0x2102. To ignore config 0x2142 will
>>> > do it. 0x42 should work too, but for one thing, ignore break will be
>>> > disabled, which is not desirable (router can drop to rommon during
>>> > runtime due to deliberate/spurious break).
>>> >
>>> > Hope that helps,
>>> > Tim
>>> >
>>> >
>>> >
>>> > At 06:07 PM 7/30/2009, Graham Wooden asserted:
>>> >
>>>> >> Hi there,
>>>> >>
>>>> >> Not much out there on this for the Sup32. But since the Sup32 is a
>>>> upgraded
>>>> >> MSFC2, will the config register ³0x42² bypass the config?
>>>> >> Someone borked up the aaa auth and I can't get into it. Bah.
>>>> >>
>>>> >> Thanks,
>>>> >>
>>>> >> -graham
>> 
> 
> 
> 
> 
> Tim Stevenson, tstevens at cisco.com
> Routing & Switching CCIE #5561
> Technical Marketing Engineer, Cisco Nexus 7000
> Cisco - http://www.cisco.com
>  <http://www.cisco.com/> IP Phone: 408-526-6759
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