Re: V6 Upgrade Trouble

[DrFranken <midrange@xxxxxxxxxxxx>]

I have done MANY of these and never seen IPV6 flood a network. Actually 
I've never seen IPV4 floods from an i either for that matter.

Does the flood stop while the system is IPLing or does it continue 
throughout?   Frankly the only part of IPV6 that actually is configured 
by default is the loopback address ::1. There is no IPV6 configured on 
any Ethernet line unless you did so so this on the surface doesn't make 
any sense at all.

I'm assuming that the network guys are saying 'from this LPAR' because 
the MAC address is a match to that of your Ethernet line. You didn't say 
what sort of Ethernet card the machine has (i.e. 5706 or IVE card for 
example)

Can we be sure the switch itself isn't at fault here? Tried any other 
ports on the switch?

    - Larry "DrFranken" Bolhuis

On 5/14/2011 5:55 PM, fbocch2595@xxxxxxx wrote:
> Hi Folks, overnight we upgraded from V5R4 to V6R1M1 (LIC at V6R1M1) and after an upgrade of about 6 hours (including the object conversion) our network started to be flooded by IPV6 traffic from the newly upgraded lpar and it's causing slowdowns all over the network and affecting users and production.  Has anyone else had similar circumstances or issues like this?  I did not know or realize that IPV6 would start so we changed the cmd default so STRTCP would not start IPV6 and we also CHGIPLA to Start TCP/IP *NO and we've ipl'd several time and our network folks continue to say the newly upgraded system is flooding the network with traffic.
>
> If anyone has any help or info to share on this type of situation, plz let me know
>
> Management wants to go back to the prior release!
>
> Thanks