Intoroduce switch abstraction mechanism for (future) multi-node tests#218
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francoriba wants to merge 4 commits intoaparcar:mainfrom
Open
Intoroduce switch abstraction mechanism for (future) multi-node tests#218francoriba wants to merge 4 commits intoaparcar:mainfrom
francoriba wants to merge 4 commits intoaparcar:mainfrom
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Signed-off-by: Franco <franco.riba@mi.unc.edu.ar>
Signed-off-by: Franco <franco.riba@mi.unc.edu.ar>
…doc duplication Signed-off-by: Franco <franco.riba@mi.unc.edu.ar>
Signed-off-by: Franco <franco.riba@mi.unc.edu.ar>
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Hi!
This is a part/component of the solution we are building for multi node tests for libremesh.
With this you should be able to support dynamic VLAN switching when running tests that require a network topology change.
The idea is: some labs keep each DUT on its own VLAN by default, but multi-node tests (for wich we want to give support in near feature) need everyone on the same VLAN for a bit. So, the new fixtures talk to labgrid-switch-abstraction over ssh to move ports onto a shared VLAN (from a config file
dut-config.yaml) and put them back when the session ends. There is a "Batch mode" so we don’t open one SSH session per DUT, making the toplogy change faster.For lab owners that are not interested in running this future type of tests the setup will not be needed.
We've been testing this approach for libremesh oriented tests using a TP link switch and we think it's the best option since each test directly configures the topology it needs. Also created a basic driver for switches that use openwrt, but we have not tested it, so it might need some adjustments, please submit a PR for that if needed.
Also added a short doc in
docs/switch-abstraction.mdwith how to wire up switch.conf, dut-config.yaml, and the env vars (let me know if you find it redundant)Happy to hear any thoughts :P