[j-nsp] Procedure for upgrade routing engines.

[Daniel Roesen]

On Wed, Jan 08, 2014 at 01:27:57PM +0100, Jonas Frey (Probe Networks) wrote:
> RE-S-1800 is running JunOS 64, so this will *not* work.
> 
> Mixing routing engines isnt recommended/supported officially by juniper
> either, but works to some degree (RE1300/RE2000 32bit).

Without having GRES/NSR enabled, I see no reason why it shouldn't work.

See e.g.
http://www.juniper.net/techpubs/en_US/junos13.2/topics/task/configuration/64-bit-junos-upgrading.html

"Note: Mixing the 32-bit Junos OS with the 64-bit Junos OS is only
supported temporarily during the upgrade process. Mixing the two
operating systems is not supported for normal operations."

I believe this caveat is only valid for GRES/NSR and not unsynced
operation of the REs.

Config sync should be no factor.

Anyhow, I cannot find a clear statement applicable to the OP case.

Best regards,
Daniel

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