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Adding a SUP720-3BXL standby SUP question

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lee.t.starnes at gmail

Apr 4, 2012, 1:14 PM

Post #1 of 8 (955 views)
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Adding a SUP720-3BXL standby SUP question

Hi,

I have a question about the 6509 and the SUP720-3BXL standby sup. If a
chassis only has 1 SUP installed and you install a second one, will that
disrupt the currently installed and working SUP? I ask this because we have
our standby SUPs and I would like to install them, but I know they don't
have the same version of IOS running. I don't want to blow away the config
or cause the chassis to go down when installing these. Does anyone have any
experience with this?

Thanks,

Lee
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walter.keen at rainierconnect

Apr 4, 2012, 1:18 PM

Post #2 of 8 (925 views)
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Re: Adding a SUP720-3BXL standby SUP question [In reply to]

If budgets allow for it, a 6509 chassis can be had very cheaply through grey market resellers, and you'd end up with a spare.

----- Original Message -----

From: "Lee Starnes" <lee.t.starnes [at] gmail>
To: cisco-nsp [at] puck
Sent: Wednesday, April 4, 2012 1:14:27 PM
Subject: [c-nsp] Adding a SUP720-3BXL standby SUP question

Hi,

I have a question about the 6509 and the SUP720-3BXL standby sup. If a
chassis only has 1 SUP installed and you install a second one, will that
disrupt the currently installed and working SUP? I ask this because we have
our standby SUPs and I would like to install them, but I know they don't
have the same version of IOS running. I don't want to blow away the config
or cause the chassis to go down when installing these. Does anyone have any
experience with this?

Thanks,

Lee
_______________________________________________
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https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/

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peper at peper

Apr 4, 2012, 1:42 PM

Post #3 of 8 (930 views)
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Re: Adding a SUP720-3BXL standby SUP question [In reply to]

On 4/4/12 22:14 , Lee Starnes wrote:
> Hi,
>
> I have a question about the 6509 and the SUP720-3BXL standby sup. If a
> chassis only has 1 SUP installed and you install a second one, will that
> disrupt the currently installed and working SUP? I ask this because we have
> our standby SUPs and I would like to install them, but I know they don't
> have the same version of IOS running. I don't want to blow away the config
> or cause the chassis to go down when installing these. Does anyone have any
> experience with this?
>

Hi,

Normally when you insert second sup as a standby (same type, hardware
configuration including PFC and memory) it should synchronize itself to
active one including IOS and configuration (except configuration
registers) and reload as standby. But I normally recommend my customers
to manually load proper IOS to supervisor on spare chassis and insert
prepared one into production chassis.

Regards,

--
Piotr Wojciechowski (CCIE #25543) | "The trouble with being a god is
http://ccieplayground.wordpress.com | that you've got no one to pray to"
JID: peper [at] jabber | -- (Terry Pratchett, Small Gods)

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peper at peper

Apr 4, 2012, 1:42 PM

Post #4 of 8 (927 views)
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Re: Adding a SUP720-3BXL standby SUP question [In reply to]

lee.t.starnes at gmail

Apr 4, 2012, 2:13 PM

Post #5 of 8 (928 views)
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Re: Adding a SUP720-3BXL standby SUP question [In reply to]

I had figured as much, but wanted to make sure. I have backups of
everything, so if something does go wrong, it can get corrected. We may
just pick up a spare chassis to do this upgrade. Seems that they are not
too costly.

Thanks for the input.

-Lee

2012/4/4 Piotr Wojciechowski <peper [at] peper>

> On 4/4/12 22:14 , Lee Starnes wrote:
> > Hi,
> >
> > I have a question about the 6509 and the SUP720-3BXL standby sup. If a
> > chassis only has 1 SUP installed and you install a second one, will that
> > disrupt the currently installed and working SUP? I ask this because we
> have
> > our standby SUPs and I would like to install them, but I know they don't
> > have the same version of IOS running. I don't want to blow away the
> config
> > or cause the chassis to go down when installing these. Does anyone have
> any
> > experience with this?
> >
>
> Hi,
>
> Normally when you insert second sup as a standby (same type, hardware
> configuration including PFC and memory) it should synchronize itself to
> active one including IOS and configuration (except configuration
> registers) and reload as standby. But I normally recommend my customers
> to manually load proper IOS to supervisor on spare chassis and insert
> prepared one into production chassis.
>
> Regards,
>
> --
> Piotr Wojciechowski (CCIE #25543) | "The trouble with being a god is
> http://ccieplayground.wordpress.com | that you've got no one to pray to"
> JID: peper [at] jabber | -- (Terry Pratchett, Small Gods)
>
>
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brian at meganet

Apr 4, 2012, 2:58 PM

Post #6 of 8 (919 views)
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Re: Adding a SUP720-3BXL standby SUP question [In reply to]

I wouldn't go that far unless you've got a use for an additional chassis.
Simply put the compact flash from the new 3bxl into the primary's 2nd
slot, copy the image & return it to the new card if you're nervous.
Either way, insterting a new sup should not interfere with the primary.

On Wed, 4 Apr 2012, Lee Starnes wrote:

> I had figured as much, but wanted to make sure. I have backups of
> everything, so if something does go wrong, it can get corrected. We may
> just pick up a spare chassis to do this upgrade. Seems that they are not
> too costly.
>
> Thanks for the input.
>
> -Lee
>
> 2012/4/4 Piotr Wojciechowski <peper [at] peper>
>
> > On 4/4/12 22:14 , Lee Starnes wrote:
> > > Hi,
> > >
> > > I have a question about the 6509 and the SUP720-3BXL standby sup. If a
> > > chassis only has 1 SUP installed and you install a second one, will that
> > > disrupt the currently installed and working SUP? I ask this because we
> > have
> > > our standby SUPs and I would like to install them, but I know they don't
> > > have the same version of IOS running. I don't want to blow away the
> > config
> > > or cause the chassis to go down when installing these. Does anyone have
> > any
> > > experience with this?
> > >
> >
> > Hi,
> >
> > Normally when you insert second sup as a standby (same type, hardware
> > configuration including PFC and memory) it should synchronize itself to
> > active one including IOS and configuration (except configuration
> > registers) and reload as standby. But I normally recommend my customers
> > to manually load proper IOS to supervisor on spare chassis and insert
> > prepared one into production chassis.
> >
> > Regards,
> >
> > --
> > Piotr Wojciechowski (CCIE #25543) | "The trouble with being a god is
> > http://ccieplayground.wordpress.com | that you've got no one to pray to"
> > JID: peper [at] jabber | -- (Terry Pratchett, Small Gods)
> >
> >
> _______________________________________________
> cisco-nsp mailing list cisco-nsp [at] puck
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>

---------------------------------
Brian Wallingford
Director, Network Operations
MegaNet Communications
P: 508-646-0030 F: 508-646-0010
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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andrew at vianet

Apr 4, 2012, 5:02 PM

Post #7 of 8 (949 views)
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Re: Adding a SUP720-3BXL standby SUP question [In reply to]

I've attempted this before and failed, this was with a 7606 running SRE5.

The bootvar is the spare sup720 I was adding was set to boot from the
bootflash, and not the CF disk.

When I inserted the card it loaded the bootflash IOS (which was from a
totally different train).

After this the box promptly crashed, I imagine its because the slave-sup
was attempting to SSO.

Since then I keep a console on the new slave as I insert it and if I see
it loading the incorrect ISO I break into ROMMON.

Just my experience, wanted to share.

On 4/4/2012 5:58 PM, Brian Wallingford wrote:
> I wouldn't go that far unless you've got a use for an additional chassis.
> Simply put the compact flash from the new 3bxl into the primary's 2nd
> slot, copy the image& return it to the new card if you're nervous.
> Either way, insterting a new sup should not interfere with the primary.
>
> On Wed, 4 Apr 2012, Lee Starnes wrote:
>
>> I had figured as much, but wanted to make sure. I have backups of
>> everything, so if something does go wrong, it can get corrected. We may
>> just pick up a spare chassis to do this upgrade. Seems that they are not
>> too costly.
>>
>> Thanks for the input.
>>
>> -Lee
>>
>> 2012/4/4 Piotr Wojciechowski<peper [at] peper>
>>
>>> On 4/4/12 22:14 , Lee Starnes wrote:
>>>> Hi,
>>>>
>>>> I have a question about the 6509 and the SUP720-3BXL standby sup. If a
>>>> chassis only has 1 SUP installed and you install a second one, will that
>>>> disrupt the currently installed and working SUP? I ask this because we
>>> have
>>>> our standby SUPs and I would like to install them, but I know they don't
>>>> have the same version of IOS running. I don't want to blow away the
>>> config
>>>> or cause the chassis to go down when installing these. Does anyone have
>>> any
>>>> experience with this?
>>>>
>>> Hi,
>>>
>>> Normally when you insert second sup as a standby (same type, hardware
>>> configuration including PFC and memory) it should synchronize itself to
>>> active one including IOS and configuration (except configuration
>>> registers) and reload as standby. But I normally recommend my customers
>>> to manually load proper IOS to supervisor on spare chassis and insert
>>> prepared one into production chassis.
>>>
>>> Regards,
>>>
>>> --
>>> Piotr Wojciechowski (CCIE #25543) | "The trouble with being a god is
>>> http://ccieplayground.wordpress.com | that you've got no one to pray to"
>>> JID: peper [at] jabber | -- (Terry Pratchett, Small Gods)
>>>
>>>
>> _______________________________________________
>> cisco-nsp mailing list cisco-nsp [at] puck
>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
> ---------------------------------
> Brian Wallingford
> Director, Network Operations
> MegaNet Communications
> P: 508-646-0030 F: 508-646-0010
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> _______________________________________________
> cisco-nsp mailing list cisco-nsp [at] puck
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>
>
_______________________________________________
cisco-nsp mailing list cisco-nsp [at] puck
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/

td_miles at yahoo

Apr 4, 2012, 5:46 PM

Post #8 of 8 (940 views)
Permalink

Re: Adding a SUP720-3BXL standby SUP question [In reply to]

We've only ever had ONE bus stall when replacing a SUP (this was replacing a failed one, not upgrading from single to dual). As a result we always schedule this sort of activity in a maintenace window and plan for the worst (ie. box reboot & 5-10 mins of downtime).

regards,
Tony.

----- Original Message -----
> From: Andrew K. <andrew [at] vianet>
> To: cisco-nsp [at] puck
> Cc:
> Sent: Thursday, 5 April 2012 10:02 AM
> Subject: Re: [c-nsp] Adding a SUP720-3BXL standby SUP question
>
> I've attempted this before and failed, this was with a 7606 running SRE5.
>
> The bootvar is the spare sup720 I was adding was set to boot from the
> bootflash, and not the CF disk.
>
> When I inserted the card it loaded the bootflash IOS (which was from a
> totally different train).
>
> After this the box promptly crashed, I imagine its because the slave-sup
> was attempting to SSO.
>
> Since then I keep a console on the new slave as I insert it and if I see
> it loading the incorrect ISO I break into ROMMON.
>
> Just my experience, wanted to share.
>
>
> On 4/4/2012 5:58 PM, Brian Wallingford wrote:
>> I wouldn't go that far unless you've got a use for an additional
> chassis.
>> Simply put the compact flash from the new 3bxl into the primary's 2nd
>> slot, copy the image&� return it to the new card if you're nervous.
>> Either way, insterting a new sup should not interfere with the primary.
>>
>> On Wed, 4 Apr 2012, Lee Starnes wrote:
>>
>>> I had figured as much, but wanted to make sure. I have backups of
>>> everything, so if something does go wrong, it can get corrected. We may
>>> just pick up a spare chassis to do this upgrade. Seems that they are
> not
>>> too costly.
>>>
>>> Thanks for the input.
>>>
>>> -Lee
>>>
>>> 2012/4/4 Piotr Wojciechowski<peper [at] peper>
>>>
>>>> On 4/4/12 22:14 , Lee Starnes wrote:
>>>>> Hi,
>>>>>
>>>>> I have a question about the 6509 and the SUP720-3BXL standby
> sup. If a
>>>>> chassis only has 1 SUP installed and you install a second one,
> will that
>>>>> disrupt the currently installed and working SUP? I ask this
> because we
>>>> have
>>>>> our standby SUPs and I would like to install them, but I know
> they don't
>>>>> have the same version of IOS running. I don't want to blow
> away the
>>>> config
>>>>> or cause the chassis to go down when installing these. Does
> anyone have
>>>> any
>>>>> experience with this?
>>>>>
>>>> Hi,
>>>>
>>>> Normally when you insert second sup as a standby (same type,
> hardware
>>>> configuration including PFC and memory) it should synchronize
> itself to
>>>> active one including IOS and configuration (except configuration
>>>> registers) and reload as standby. But I normally recommend my
> customers
>>>> to manually load proper IOS to supervisor on spare chassis and
> insert
>>>> prepared one into production chassis.
>>>>
>>>> Regards,
>>>>
>>>> --
>>>> Piotr Wojciechowski� (CCIE #25543)�

_______________________________________________
cisco-nsp mailing list cisco-nsp [at] puck
https://puck.nether.net/mailman/listinfo/cisco-nsp
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