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Ticket ID: SIXXS #14275941 Ticket Status: Remote Problem PoP: usbos01 - OCCAID Inc. (Boston, Massachusetts)
IPv6 packet arrived out-of-order
![[us]](/s/countries/us.gif) Shadow Hawkins on Thursday, 17 September 2015 15:51:45
we have been testing media over IPv6 between two end points for last year or so. Just last few weeks, we noticed IPv6 media packets are arriving out-of-order in one direction. We look at the packets leaving site A and they are all in sequence but when it arrived at site B, the media packets are out of order. We haven't change any setting on any of the HW the only thing happened was we had a power outage about 2 months ago. Any idea on how to troubleshoot this?
Thank you
David Kuo (MSD16-SIXXS)
State change: remoteproblem
The state of this ticket has been changed to remoteproblem
IPv6 packet arrived out-of-order
The internet is a magic place, these kind of things can happen anywhere in the network.
Remember as you are tunneling it can happen in the IPv4 and IPv6 plane.
It is extremely hard to figure this out, unless you look at every single hop along the path, in both IPv4 and IPv6.
IPv6 packet arrived out-of-order
Shadow Hawkins on Tuesday, 22 September 2015 16:31:45
Jeroen Massar wrote:
The internet is a magic place, these kind of things can happen anywhere in the network.
Remember as you are tunneling it can happen in the IPv4 and IPv6 plane.
It is extremely hard to figure this out, unless you look at every single hop along the path, in both IPv4 and IPv6.
I fully understand. I will look at the capture at both end and see what's the next hop from A and previous hop from B. Hopefully will be able to figure this out.
IPv6 packet arrived out-of-order
David Kuo wrote:
I fully understand. I will look at the capture at both end and see what's the next hop from A and previous hop from B. Hopefully will be able to figure this out.
The next hop in the IPv4 world in in the IPv6 world?
Note that you will have at least 4 hops between two hosts when they are tunneled and most likely a lot more. And most of these do not have packet capture abilities, let alone that we or even other people have access to them.
The best I can recommend is that you make a direct connection between the two hosts, if you always know which two hosts are involved anyway and when you control them.
Then again, if the path between those two hosts is affected then you are out of luck in the same way. At least you would be able to exclude the IPv6 path if only taking IPv4 hops between those hosts.
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![[ch]](/s/countries/ch.gif)
on Thursday, 17 September 2015 16:39:50
Posting is only allowed when you are