Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-17 Thread Andrew Yourtchenko
Re infra: I also pinged the provider to see what might be going on. I think they are still moving the stuff from one DC to another one so there can be some isolated glitches... anyway feel free to ping me or Dave if you see anything odd infra wise. --a > On 17 Mar 2021, at 16:08, Ivan Shveduno

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-17 Thread Ivan Shvedunov
Great, thanks! On Wed, Mar 17, 2021 at 6:03 PM Florin Coras wrote: > Infra woes solved so finally merged! > > Florin > > On Mar 17, 2021, at 6:13 AM, Ivan Shvedunov wrote: > > I see CI keeps failing for my patch despite rebase... I have run the tests > that are failing locally with my patch app

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-17 Thread Florin Coras
Infra woes solved so finally merged! Florin > On Mar 17, 2021, at 6:13 AM, Ivan Shvedunov wrote: > > I see CI keeps failing for my patch despite rebase... I have run the tests > that are failing locally with my patch applied (test_map, test_flowprobe, > test_memif) and they do pass there. So

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-17 Thread Ivan Shvedunov
I see CI keeps failing for my patch despite rebase... I have run the tests that are failing locally with my patch applied (test_map, test_flowprobe, test_memif) and they do pass there. So indeed must be something related to the test environment On Tue, Mar 16, 2021 at 7:02 PM Florin Coras wrote:

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-16 Thread Florin Coras
Hi Ivan, > On Mar 16, 2021, at 8:51 AM, Ivan Shvedunov wrote: > > Thanks for clearing things up :) Thanks for bringing this up ;-) > Concerning our use case: it's about PFCP protocol [1] that's used in the 5G / > LTE CUPS setting. High throughput is usually not important there as that's a

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-16 Thread Ivan Shvedunov
Thanks for clearing things up :) Concerning our use case: it's about PFCP protocol [1] that's used in the 5G / LTE CUPS setting. High throughput is usually not important there as that's a control protocol but sometimes it happens to produce rather large UDP packets. We use PFCP in our VPP-based pro

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-16 Thread Florin Coras
Hi Ivan, > On Mar 16, 2021, at 6:40 AM, Ivan Shvedunov wrote: > > Hi Florin, > > (inline) > > On Mon, Mar 15, 2021 at 10:27 PM Florin Coras > wrote: >> On Mar 15, 2021, at 9:08 AM, Ivan Shvedunov > > wrote: >> >> Hello, >> >> I'v

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-16 Thread Ivan Shvedunov
Hi Florin, (inline) On Mon, Mar 15, 2021 at 10:27 PM Florin Coras wrote: > On Mar 15, 2021, at 9:08 AM, Ivan Shvedunov wrote: > > Hello, > > I've noticed a problem in the VPP session layer and posted a patch to > fix it [1]. > Namely, UDP datagrams with length > 1908 that require buffer ch

Re: [vpp-dev] UDP data corruption and MTU issues

2021-03-15 Thread Florin Coras
Hi Ivan, Inline. > On Mar 15, 2021, at 9:08 AM, Ivan Shvedunov wrote: > > Hello, > > I've noticed a problem in the VPP session layer and posted a patch to fix > it [1]. > Namely, UDP datagrams with length > 1908 that require buffer chaining get > corrupted, because there's a bug in sess