topic Re: IPv6 and the outage 17/09 (82855) in IPv6 Trial

IPv6 and the outage 17/09 (82855)

bobpullen — Wed, 17 Sep 2014 19:44:02 GMT

Anyone else notice this?

Re: IPv6 and the outage 17/09 (82855)

brueton — Wed, 17 Sep 2014 19:51:48 GMT

Think I saw it as well. In Surrey (LSMOG), escaped the disconnect.

Re: IPv6 and the outage 17/09 (82855)

jelv — Wed, 17 Sep 2014 20:17:55 GMT

Quote from: Bob
Anyone else notice this?

Yes

Re: IPv6 and the outage 17/09 (82855)

AndyH — Wed, 17 Sep 2014 20:42:57 GMT

~~Not sure if it's related but some of my traceroutes in IPv6 seem to convert to IPv4 after leaving PN's network:~~

2 2a02:16c8:0:1::1a 6.306 ms 6.594 ms 8.185 ms
3 2a02:16c8:1:2::11 7.777 ms 6.782 ms 9.561 ms
4 2a02:16c8::a 6.739 ms 5.956 ms 6.394 ms
5 40ge1-3.core1.lon2.he.net 16.673 ms 7.643 ms 19.163 ms
6 linx-gw1.thn.ncuk.net 6.230 ms 13.452 ms 8.153 ms
7 gi1-0-24-10-star1.core-rs2.thdo.ncuk.net 9.581 ms 9.385 ms 8.959 ms
Edit: Also seeing packet loss
--- 2a02:68:1::4 ping6 statistics ---
100 packets transmitted, 85 packets received, 15.0% packet loss
round-trip min/avg/max/std-dev = 6.540/20.169/129.238/31.687 ms

Re: IPv6 and the outage 17/09 (82855)

avatastic — Wed, 17 Sep 2014 21:29:23 GMT

They're just resolving to hostnames, not converting to IPv4 addresses. If you do the traceroute again with -n it should only show the IP addresses.

Re: IPv6 and the outage 17/09 (82855)

jelv — Wed, 17 Sep 2014 22:31:46 GMT

On Windows pathping is useful as it will show the hop the packet loss occurs at.

Re: IPv6 and the outage 17/09 (82855)

chrcoluk — Thu, 18 Sep 2014 01:53:39 GMT

no
check both my graphs in sig I was affected on both ipv4 and ipv6.

Re: IPv6 and the outage 17/09 (82855)

AndyH — Thu, 18 Sep 2014 08:20:34 GMT

Quote from: avatastic
They're just resolving to hostnames, not converting to IPv4 addresses. If you do the traceroute again with -n it should only show the IP addresses.

Thanks - for some reason they didn't resolve to hostnames before. Ignore my comment anyway
As for the packet loss - I assume the explanation is that the AG gateways were heavily (over)loaded with end users for a period last night due to the BNG outage.

Re: IPv6 and the outage 17/09 (82855)

bobpullen — Thu, 18 Sep 2014 12:41:54 GMT

I suspect you're right Andy, just struck me as odd that it affected the IPv6 transport but not IPv4.

Re: IPv6 and the outage 17/09 (82855)

AndyH — Thu, 18 Sep 2014 14:08:58 GMT

Could it be the actual bandwidth capacity of the E320s though? I assume this doesn't differentiate with IPv4 and v6.

Re: IPv6 and the outage 17/09 (82855)

bobpullen — Thu, 18 Sep 2014 14:49:44 GMT

Quote from: AndyH
I assume this doesn't differentiate with IPv4 and v6.

Thus my confusion. I doubt I'll be able to get any eyes on this one though. Far bigger fish to fry given the problems last night!