[action] [PR:17303] Added a test for VNet IPinIP decapsulation #17328
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Signed-off-by: Mahdi Ramezani <[email protected]>
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Original PR: #17303 |
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Description of PR
This PR adds a test for VNet decapsulation. IP-in-IP packets that are sent to the switch are expected
Summary:
Fixes #13122
Microsoft ADO ID: 31628440
To test VNet decapsulation, we first configure a VXLAN tunnel, a VNet, and a VNet route with a single endpoint on the switch. Then we send an IP-in-IP packet to the switch with the following properties:
We verify that the switch sends out a VXLAN packet from the VXLAN tunnel's src IP to the VNet route's endpoint containing the inner IP packet.
Type of change
Back port request
Approach
What is the motivation for this PR?
Testing VNet decapsulation on T1 switches.
How did you do it?
We configure a VXLAN tunnel, a VNet, and a VNet route with a single endpoint on the switch. Then we send an IP-in-IP packet to the switch (the dest address of the outer IP header is set to VXLAN src IP and the dest address of the inner IP header is set to the VNet route's destinaiton). The switch is expected to decapsulate the packet, then encapsulate the inner IP packet in a VXLAN packet and send out the VXLAN packet.
How did you verify/test it?
Tested on a Mellanox MSN4700 T1 switch.
Any platform specific information?
The test only runs on Cisco-8000 and Mellanox ASICs.
Supported testbed topology if it's a new test case?
T1 (and its variations)