selftests: forwarding: Add a test for NH group stats

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Add to lib.sh support for fetching NH stats, and a new library,
router_mpath_nh_lib.sh, with the common code for testing NH stats.
Use the latter from router_mpath_nh.sh and router_mpath_nh_res.sh.

The test works by sending traffic through a NH group, and checking that the
reported values correspond to what the link that ultimately receives the
traffic reports having seen.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/2a424c54062a5f1efd13b9ec5b2b0e29c6af2574.1709901020.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Petr Machata 2024-03-08 13:59:55 +01:00 • committed by Jakub Kicinski

parent 44c2fbebe1

commit a22b042660

5 changed files with 190 additions and 0 deletions

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1

tools/testing/selftests/net/forwarding/Makefile

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34

tools/testing/selftests/net/forwarding/lib.sh

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tools/testing/selftests/net/forwarding/router_mpath_nh.sh

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tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh

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tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh

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