https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217374
Bug ID: 217374
Summary: tap(4) shall be full-duplex and have non-zero speed.
Product: Base System
Version: 11.0-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 180317
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=180317&action=edit
patch for if_tap.c
For now tap(4) devices advertise itself as just 'ethernet autoselect',
without duplex or speed capabilities. This advertisement makes them
unable to be aggregated into lacp-based lagg(4):
- lacp code requires underlying interfaces to be full-duplex,
else interface will not participate in lacp at all[1]
- lacp code requires underlying interface to have non-zero speed,
else this interface can not be selected as active aggregator[2].
[1]:
https://svnweb.freebsd.org/base/stable/11/sys/net/ieee8023ad_lacp.c?revision=313038&view=markup#l478
[2]:
https://svnweb.freebsd.org/base/stable/11/sys/net/ieee8023ad_lacp.c?revision=313038&view=markup#l952
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