[AusNOG] Packet loss on link - multiple providers

[Jason Leschnik]

What type of circuit?

On Fri, 3 Aug 2018, 12:19 PM Daniel Bartlett <dan at thecloudmode.com> wrote:

> Hi All,
>
>
>
> We have a customer that is experiencing packet loss on a VPN connection.
>
> The connection is between their on-prem (colo datacentre) and Azure.
>
> Their firewall is managed by Vendor A (customer owned device).
>
> The ISP is Vendor B.
>
>
>
> We have been getting bounced around between Microsoft support, Vendor A
> (FW Support), Fortinet (FW Vendor support) and Vendor B (ISP) – all
> claiming no fault.
>
> Our monitoring (from on-prem servers to Azure servers) shows consistent
> packet loss of 2-3% - peaking at 8-9% between Azure and on-prem.
>
>
>
> Packet captures run end-to-end show the loss to be occurring between the
> on-prem FW and the Azure VPN GW.
>
>
>
> We are having a hard time convincing the ISP of the issue – they have been
> unable to find any fault in their network.
>
> The ISP support is finding it hard to troubleshoot being that the Azure
> VPN GW does not respond to ping (by design – and we cannot change this).
>
>
>
> Monitoring in place on the same link to internet site (google.com) shows
> 0% packet loss. We are only loosing packets on the VPN.
>
>
>
> Just putting this out there for any suggestions on how we can assist the
> ISP to determine the root cause? Or for any other suggestions?
>
>
>
> Thanks
>
> Dan
>
>
>
>
>
>
>
>
> * Daniel Bartlett / Technology Architectdan at thecloudmode.com
> <dan at thecloudmode.com> / 0407 176 755Lvl 17 / 31 Queen StMelbourne Victoria
> Australia 3000 www.thecloudmode.com <http://www.thecloudmode.com/>*
>
>
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20180806/9d284013/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: thecloudmodelow_260dae53-3167-46bf-b3b8-a7e12aa1ae71.jpg
Type: image/jpeg
Size: 25946 bytes
Desc: not available
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20180806/9d284013/attachment.jpg>