[202012] [vnetorch] Add ECMP support for vnet tunnel routes with endpoint health monitoring #2104
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prsunny
approved these changes
Jan 21, 2022
What I did Add functions to create/remove next hop groups for vnet tunnel routes. Count the reference count of next hop groups to create and remove as needed. Share the counter of next hop groups with routeorch. Add vs test Why I did it To add support for overlay ECMP. How I verified it Verify ECMP groups are properly created and removed with the functions. Verify vs test passes
What I did Implement bfdorch to program hardware BFD sessions via bfd SAI. Add vs test for bfd sessions. Why I did it To support hardware BFD. How I verified it Configure hardware BFD sessions on virtual switches and physical devices and confirm the BFD session is programmed.
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…onic-net#1955) What I did Add functions to create/remove next hop groups for vnet tunnel routes. Count the reference count of next hop groups to create and remove as needed. Share the counter of next hop groups with routeorch. Adapt route endpoint according to the BFD state of endpoints. Why I did it To add support for overlay ECMP. How I verified it Verify ECMP groups are properly created and removed with the functions.
What I did Advertise active vnet tunnel routes. Why I did it The overlay routes programmed on the device need to be advertised to BGP peers. This PR aims to meet this requirement. How I verified it Add an entry in ADVERTISE_NETWORK_TABLE for active overlay routes
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What I did
Cherry-pick changes in #1960, #1883, #1955, #2058
Changes in #1960:
Add functions to create/remove next hop groups for vnet tunnel routes.
Count the reference count of next hop groups to create and remove as needed.
Share the counter of next hop groups with routeorch.
Add vs test
Changes in #1883:
Implement bfdorch to program hardware BFD sessions via bfd SAI.
Add vs test for bfd sessions.
Changes in #1955:
Add functions to create/remove next hop groups for vnet tunnel routes.
Count the reference count of next hop groups to create and remove as needed.
Share the counter of next hop groups with routeorch.
Adapt route endpoint according to the BFD state of endpoints.
Changes in #2058:
Advertise active vnet tunnel routes.
Why I did it
To add support for overlay ECMP with endpoint health monitoring.
How I verified it
Details if related