Rare project developers

[Frédéric LOUI <>]

Hi

> fl: what transit do we have in between ams and sao that can rewrite the 
> ethertype???
@Marcos, can you please precise if this link can be altered by SENSE in any 
way ?

Thanks for your insight,
Frederic

> Le 5 nov. 2022 à 07:03, mc36 <> a écrit :
> 
> 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.pcap.gz><2022-11-05-070139_1920x1080_scrot.png>