[c-nsp] NPE-300 -> NPE-G1 upgrade

[Rick Ernst]

On Wed, 12 Oct 2005, Justin M. Streiner wrote:

:>On Wed, 12 Oct 2005, Rick Ernst wrote:
:>
:>> I'm looking at upgrading from NPE-300s on 7206VXRs to NPE-G1 to support
:>> OC-3 vs DS-3.  I'm currently running 12.1(22)E1 and it looks like that will
:>> support the NPE-G1.
:>>
:>> Any gotchas before I do this upgrade?
:>
:>I take it you're using either PCMCIA flash cards or ATA flash disks in
:>the I/O controller for storage on your existing setup?

Correct. Currently using 20MB linear flash in the I/O Controller.

:>
:>1) If you plan on using the gig-e ports on the G1 right away, or you're
:>using a port/ports on the I/O controller and need to migrate away from
:>them, you should download a copy of your config prior to making any
:>hardware changes.  Make the necessary changes offline, then upload the
:>config back to the router and proceed with gotcha 2)

I plan on leaving the I/O controller in (basically just because I don't
have blanks for them), but will also be migrating off the I/O-FE and a
PA-FE onto GBICs on the G1.

:>
:>2) I'd definitely recommend having a copy of your config easily available.
:>What you may be able to do is get a PCMCIA compact flash adapter at one of
:>your local electronics stores and copy the config from your old hardware
:>configuration to the compact flash card that will go in your NPE-G1.  The
:>caveat would be if the G1 doesn't recognize the files on the CF card if it
:>was formatted on the old hardware.  I don't recall having any problems
:>like this when I did an NPE-300 to NPE-G1 upgrade about two years ago, but
:>as always, YMMV.
:>
:>If for some reason the G1 doesn't recognize the files, keep a copy of the
:>config and the images you need on a TFTP server on a machine you can
:>access easily during the upgrade (laptop, etc).  If that happens, you'll
:>need to boot the router with the NPE-G1 installed and create a minimal
:>configuration to get the router to talk to the TFTP server so you can
:>copy the config and image files onto the router after you format the
:>flash device.

Configs are stored locally on slot0: and via tftp, so I'm not too worried
about having major problems (that' can't be taken care of during the
maintenance window). I was more worried (and should have been more
specific) about odd IOS interactions/compatibility with the new NPE.  The
7206s are RR clients to 7513s in the core, each 7206 handling a single
upstream with a full table.  There are minimal ACLs and uRPF on the
upstream interfaces.

Thanks for the reminders/warning about being able to read the configs!

Rick


:>
:>jms
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