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sonic-net / SONiC

Landing page for Software for Open Networking in the Cloud (SONiC) - https://sonic-net.github.io/SONiC/
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Dynamic port breakout on SN2700 #1035

Open matthew-fields opened 2 years ago

matthew-fields commented 2 years ago

Hi, we are trying to achieve dynamic port breakout on a Mellanox SN2700; we have used both 202106 and 202207 (compiled version).

In the 202106 version, we can modify the port_profile file and dynamically breakout Ethernet0, but no other port will breakout successfully; when we try manually breaking out the ports, it crashes the DB and refuses to reconfigure the DB, instead, it removes all of the interfaces.

In the 202207 version, it will not allow anything but 1x100G[50G,40G,25G,10G] and 2x50G[25G,10G], both of which work perfectly. If I try to breakout manually, the DB fails to load again.

Yuval-Mellanox commented 2 years ago

Hi Matthew, Dynamic Port Breakout is still considered alpha. There are many open issues. https://github.com/Azure/sonic-buildimage/issues?q=is%3Aissue+is%3Aopen+%22dpb%22

for more details, please reach out to me. yuvalbo@nvidia.com