SMB Multichannel for linux clients

Aurélien Aptel aaptel at
Tue Apr 27 09:32:25 UTC 2021

Dmitry Martyanov via samba-technical <samba-technical at>
> But for linux clients smb multichannel doesn't work at all, the traffic
> goes through only one NIC...

If you are talking about the kernel client (share mounted with cifs.ko):
for now you need to explicitely mount the share with -o
multichannel,max_channels=N where N will be the number of channels you
want to use. It is getting more stable but still somewhat experimental
so you need a very recent kernel to test this. The main remaining issue
is properly handling reconnection in cases of network problems.

Aurélien Aptel / SUSE Labs Samba Team
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