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Re: [rare-dev] Experiment of polka for SC2022


Chronological Thread 
  • From: Frédéric LOUI <>
  • To: "Rafael S. Guimaraes" <>
  • Cc: , Everson Borges <>, Marcos Schwarz <>
  • Subject: Re: [rare-dev] Experiment of polka for SC2022
  • Date: Sat, 5 Nov 2022 18:15:17 +0100
  • Dkim-filter: OpenDKIM Filter v2.10.3 zmtaauth01.partage.renater.fr 6FA1814013F

Had a quick sync with Marcos.

We will try to switch to another circuit between AMS and SAO.
Once established it should be rendered in the GP4L (world map panel)

Cheers.
Frederic

> Le 5 nov. 2022 à 17:06, Rafael S. Guimaraes <> a écrit :
>
> Hi Csaba, sorry for my late reply!
>
> Yesterday, we observed the same issue happening in the PCAP file, the
> packets coming with Ethertype as 0x0000 and the routeID 0x800489e7. TBH, we
> did not know what was going on...thanks for answering and let's see if it
> is something happening between AMS and SAO. I am attaching the pcap file
> that we used.
>
> Best regards,
> Rafael Guimaraes
>
> On Sat, 5 Nov 2022 at 03:03, mc36 <> wrote:
> finally i got an idea on how to have the pcap, attached...
> as you can see, the packets somehow arrive with ethertype=0x0000
>
> MS0001#show polka routeid tunnel115
> mode routeid
> hex 00 00 00 00 00 00 00 00 00 00 00 00 80 04 89 e7
> poly 10000000000001001000100111100111
> [..]
>
> interestingly, the polka coefficient is somehow present in the packet...
>
> fl: what transit do we have in between ams and sao that can rewrite the
> ethertype???
> br,
> cs
>
> On 11/5/22 06:52, mc36 wrote:
> > hi,
> > a strange thing is going on here...
> >
> > i ping flooded into your tunnel by the following:
> > AMS0001#ping 30.1.15.2 vrf CORE size 1111 repeat 1111111 tim 11
> >
> > then i verified if it exits the switch as polka:
> > AMS0001#show interfaces sdn3.1916 ethertypes | include polka
> > ethtyp 8842 polka 16939 0 0 19189793 0 0
> >
> > AMS0001#
> > it increases as i repeatedly issue the command....
> >
> > but i get no polka packet at the sao switch:
> > SAO0021#show interfaces sdn51.459 ethertypes
> > info userReader.cmdEnter:userReader.java:1032 command SAO0021#show
> > interfaces sdn51.459 ethertypes from telnet tunnel123 22222 ->
> > 172.16.11.16 50016
> > packet byte
> > type value handler tx rx drop tx rx drop
> > ethtyp 0000 null 0 2626139 0 0 313913310 0
> > ethtyp 0800 ip4 30943 30770 0 3460858 3770587 0
> > ethtyp 0806 arp4 147 146 0 4410 6424 0
> > ethtyp 86dd ip6 40624 39721 0 4909863 5773324 0
> > ethtyp 8842 polka 0 0 0 0 0 0
> > ethtyp 8847 mplsUni 0 0 0 0 0 0
> > ethtyp 8848 mplsMulti 0 0 0 0 0 0
> > ethtyp 88cc lldp 876 0 0 134028 0 0
> >
> > SAO0021#
> > moreove the null increases here, which is an indicator of the unknown
> > ethertype....
> > that is, my suspect here is the link between the two switches...
> >
> > i did a packet capture on the intreface but i found no way to get the
> > file...
> > can you please grab the /sdn51.459.pcap file from sao0021 and attach it
> > here?
> > thanks,
> > cs
> >
> >
> > On 11/4/22 23:57, Everson Borges wrote:
> >> Hi All,
> >>
> >> We have a problem when sending traffic using the polka tunnel, if
> >> someone can help us, that would be great.
> >>
> >> image.png
> >>
> >> We are sending Traffic from the DTN-AMS-bm6(10.1.101.101) host via the
> >> polka tunnel (in blue), to DTN-OX(10.0.15.2), but we are facing the
> >> following issue:
> >> - As shown below in the figure the packets have been dropped at the
> >> switch sao0001 in the interface sdn51.459. The switch ams0001 forwards
> >> according to the traffic.
> >>
> >> image.png
> >>
> >>
> >> All the configurations are available in p4lab.
> >> %3CmxGraphModel%3E%3Croot%3E%3CmxCell%20id%3D%220%22%2F%3E%3CmxCell%20id%3D%221%22%20parent%3D%220%22%2F%3E%3CmxCell%20id%3D%222%22%20style%3D%22edgeStyle%3DorthogonalEdgeStyle%3Brounded%3D0%3BorthogonalLoop%3D1%3BjettySize%3Dauto%3Bhtml%3D1%3BexitX%3D0%3BexitY%3D0.5%3BexitDx%3D0%3BexitDy%3D0%3BentryX%3D1%3BentryY%3D0.5%3BentryDx%3D0%3BentryDy%3D0%3BstrokeColor%3D%23FF3333%3BstrokeWidth%3D2%3B%22%20edge%3D%221%22%20source%3D%223%22%20target%3D%2210%22%20parent%3D%221%22%3E%3CmxGeometry%20relative%3D%221%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%223%22%20value%3D%22AMS0001%26lt%3Bbr%26gt%3BTofino%201%22%20style%3D%22rounded%3D1%3BwhiteSpace%3Dwrap%3Bhtml%3D1%3BfillColor%3D%23CCCCCC%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22343%22%20y%3D%22150%22%20width%3D%22100%22%20height%3D%2250%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%224%22%20style%3D%22edgeStyle%3DorthogonalEdgeStyle%3Brounded%3D0%3BorthogonalLoop%3D1%3BjettySize%3Dauto%3Bhtml%3D1%3BexitX%3D0%3BexitY%3D0.5%3BexitDx%3D0%3BexitDy%3D0%3BentryX%3D1%3BentryY%3D0.5%3BentryDx%3D0%3BentryDy%3D0%3BstrokeColor%3D%23000000%3BstrokeWidth%3D2%3B%22%20edge%3D%221%22%20source%3D%225%22%20target%3D%223%22%20parent%3D%221%22%3E%3CmxGeometry%20relative%3D%221%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%225%22%20value%3D%22SAO0001%26lt%3Bbr%26gt%3BTofino%201%22%20style%3D%22rounded%3D1%3BwhiteSpace%3Dwrap%3Bhtml%3D1%3BfillColor%3D%23CCCCCC%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22599.5%22%20y%3D%22150%22%20width%3D%22100%22%20height%3D%2250%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%226%22%20style%3D%22edgeStyle%3DorthogonalEdgeStyle%3Brounded%3D0%3BorthogonalLoop%3D1%3BjettySize%3Dauto%3Bhtml%3D1%3BexitX%3D0.5%3BexitY%3D0%3BexitDx%3D0%3BexitDy%3D0%3BentryX%3D0.5%3BentryY%3D1%3BentryDx%3D0%3BentryDy%3D0%3BstrokeWidth%3D2%3B%22%20edge%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20relative%3D%221%22%20as%3D%22geometry%22%3E%3CmxPoint%20x%3D%22653.5%22%20y%3D%22430%22%20as%3D%22sourcePoint%22%2F%3E%3CmxPoint%20x%3D%22653.5%22%20y%3D%22200%22%20as%3D%22targetPoint%22%2F%3E%3C%2FmxGeometry%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%227%22%20style%3D%22edgeStyle%3DorthogonalEdgeStyle%3Brounded%3D0%3BorthogonalLoop%3D1%3BjettySize%3Dauto%3Bhtml%3D1%3BexitX%3D0%3BexitY%3D0.5%3BexitDx%3D0%3BexitDy%3D0%3BentryX%3D1%3BentryY%3D0.5%3BentryDx%3D0%3BentryDy%3D0%3BstrokeColor%3D%23FF0000%3BstrokeWidth%3D2%3B%22%20edge%3D%221%22%20source%3D%228%22%20target%3D%229%22%20parent%3D%221%22%3E%3CmxGeometry%20relative%3D%221%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%228%22%20value%3D%22MIA0001%26lt%3Bbr%26gt%3BTofino%201%22%20style%3D%22rounded%3D1%3BwhiteSpace%3Dwrap%3Bhtml%3D1%3BfillColor%3D%23CCCCCC%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22599.5%22%20y%3D%22430%22%20width%3D%22100%22%20height%3D%2250%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%229%22%20value%3D%22DTN-OX%22%20style%3D%22whiteSpace%3Dwrap%3Bhtml%3D1%3Baspect%3Dfixed%3BfillColor%3D%23CCCCCC%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22370%22%20y%3D%22425%22%20width%3D%2260%22%20height%3D%2260%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%2210%22%20value%3D%22DTN-ams-bms6%22%20style%3D%22whiteSpace%3Dwrap%3Bhtml%3D1%3Baspect%3Dfixed%3BfillColor%3D%23CCCCCC%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22124%22%20y%3D%22145%22%20width%3D%2260%22%20height%3D%2260%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%2211%22%20value%3D%22sdn1.1779%26lt%3Bbr%26gt%3B10.15.16.1%22%20style%3D%22rounded%3D0%3BwhiteSpace%3Dwrap%3Bhtml%3D1%3BfillColor%3D%23f8cecc%3BstrokeColor%3D%23b85450%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22659%22%20y%3D%22390%22%20width%3D%2274%22%20height%3D%2230%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%2212%22%20value%3D%22sdn51.2500%26lt%3Bbr%26gt%3B10.15.16.2%22%20style%3D%22rounded%3D0%3BwhiteSpace%3Dwrap%3Bhtml%3D1%3BfillColor%3D%23f8cecc%3BstrokeColor%3D%23b85450%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22656%22%20y%3D%22215%22%20width%3D%2274%22%20height%3D%2230%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%2213%22%20value%3D%22sdn51.459%26lt%3Bbr%26gt%3B10.19.16.2%22%20style%3D%22rounded%3D0%3BwhiteSpace%3Dwrap%3Bhtml%3D1%3BfillColor%3D%23f8cecc%3BstrokeColor%3D%23b85450%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22530%22%20y%3D%22178%22%20width%3D%2267%22%20height%3D%2230%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3CmxCell%20id%3D%2214%22%20value%3D%22%26lt%3Bdiv%26gt%3B%26lt%3Bspan%20style%3D%26quot%3Bbackground-color%3A%20initial%3B%26quot%3B%26gt%3Bsdn3.1916%26lt%3B%2Fspan%26gt%3B%26lt%3Bbr%26gt%3B%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3B10.19.16.1%26lt%3Bbr%26gt%3B%26lt%3B%2Fdiv%26gt%3B%22%20style%3D%22rounded%3D0%3Bwhi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> >> I'
> >> --
> >> Best regards
> >> Everson
> <sdn51.459.pcap>




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