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ohforce_331348's avatar
ohforce_331348
Icon for Nimbostratus rankNimbostratus
Aug 24, 2017

Migration from LTM 3600s to LTM 4000s.

Hi,

 

I previously posted similar discussion. What I'm trying to do now is upgrade from 3600 to 4000. I have been only looking into UCS file on 3600 that can import to 4000 so that every config can be the same but only a few things such as interface etc...

 

In the meantime, I found out this article.

 

https://support.f5.com/csp/article/K15496

 

Based on that article, it seems like I can just add 4000s to the existing 3600s and then remove the old 3600s, and I don't even have to use UCS file.

 

If that works,

 

  1. Software and License have to be installed separately on the new hardware?
  2. Can I use the old IPs on the new hardware?
  3. When syncing, should I do that having the downtime?
    • Is there any way that I can sync it without any impact?
    • Do they have to be online for the sync? If yes, how can the new hardware use the old IPs?
    • What and how should I configure on the new hardware and where do I have to connect the cable from the new hardware (4000s) to old hardware (3600s)?

I will very appreciate if you answer my questions above.

 

Thank you in advance!

 

application delivery
LTM

1 Reply

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  • Stanislas_Piro2's avatar
    Stanislas_Piro2
    Icon for Cumulonimbus rankCumulonimbus
    Aug 24, 2017
    1. Software and License have to be installed separately on the new hardware? 
      Yes you manage the new appliance like a new cluster member
    2. Can I use the old IPs on the new hardware? 
      virtual servers IPs stay the same, self IPs must be different while both appliances are connected. you can configure the same self IPs except HA IP if new appliance is only connected with HA interface. take care to not create IP address conflict.
    3. When syncing, should I do that having the downtime?
      • Is there any way that I can sync it without any impact? 
        before enable new appliance in the device-group failover, configure it in offline. if you don't do that, the new appliance can become active before config sync
      • Do they have to be online for the sync? If yes, how can the new hardware use the old IPs? 
        see answer above
      • What and how should I configure on the new hardware and where do I have to connect the cable from the new hardware (4000s) to old hardware (3600s)? 
        don't use failover cable but network failover. you only have to connect new appliance on the same HA network than old one