[AusNOG] Fwd: Life in the trenches of large-ish IPv6 networks

[Beeson, Ayden]

Yeah I had thought that as well, while I haven't reached the scale of clients this place seems to have, I haven't run into any problems so far and we have a full core deployment and a few various IPv6 clients and servers spread across the various campus networks we have.

We did have problems what that Intel NIC issue, but we had that on IPv4 networks that were not even IPv6 enabled yet, we just saw CPU spikes and some minor packet loss as thousands of IPv6 multicast messages were spammed out by clients every second...

At least we have a fix in place for that now, it was a pain in the arse to find :P

Thanks,
Ayden Beeson

-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Mark ZZZ Smith
Sent: Monday, 8 September 2014 2:52 PM
To: Narelle; ausnog at ausnog.net; ipv6tech at ipv6.org.au
Subject: Re: [AusNOG] Fwd: Life in the trenches of large-ish IPv6 networks

This network has deeper problems that are not caused by IPv6's change in neighbor discovery methods. IPv6's change in behaviour may have made it worse, but it isn't the cause.

"Over the summer we have been experiencing a variety of issues with our core switches. We continued to experience these issues even after upgrading the firmware as recommended by Juniper, which we did (on an emergency, unscheduled basis) two Mondays ago. The most serious issue is that there appear to be bridge loops occasionally being created which saturate the CPU on the core switches, thereby preventing them from running necessary protocol processing."




>________________________________
> From: Narelle <narellec at gmail.com>
>To: "ausnog at ausnog.net" <ausnog at lists.ausnog.net>; ipv6tech at ipv6.org.au
>Sent: Sunday, 7 September 2014, 14:52
>Subject: [AusNOG] Fwd: Life in the trenches of large-ish IPv6 networks
>
>
>
>
>Thoughts anyone?
>http://blog.bimajority.org/2014/09/05/the-network-nightmare-that-ate-my-week/
>
>N
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