YueGuobin f03c94db6d

docs: link-local frame transparency on kernel links — spec and per-datapath sections ...

A Linux bridge standing in for a cable does not forward the IEEE 802.1D
reserved range (01:80:c2:00:00:00-0f) by default, so LACP/LLDP/802.1X never
crossed a kernel-datapath link while the UDP relay carried them fine. uBridge
now opens every enslave'd port's IFLA_BRPORT_GROUP_FWD_MASK to 0xfffd at
brctl addif time (branch feature/bridge-tap-l2only, commits 0284500/03a18f1/
cf4e494), which the six kernel-datapath feature docs now document as a
section: STP, LACP, 802.1X and LLDP/DCBX cross; 802.3x PAUSE / PFC stays
dropped — br_handle_frame()'s case 0x01 discards it unconditionally, no mask
can enable it, and PFC labs must use a relay link. The full contract, kernel
references and requirements live in the new design spec, marked landed.

2026-10-06 00:21:10 +08:00

..

docker-image-type.md

docs: roadmap for docker image types (vendor profiles)

2026-09-05 21:54:52 +08:00

ubridge-iol-tap-anchor-spec.md

docs(iou): record the IOU kernel datapath and its spec

2026-10-06 00:21:09 +08:00

ubridge-kernel-impairment-spec.md

docs(spec): define the gemodel acceptance target

2026-10-06 00:21:08 +08:00

ubridge-l2-anchor-spec.md

test(e2e): assert the §E.2 idle-silence window in every kernel scenario

2026-10-06 00:21:10 +08:00

ubridge-link-local-frame-forwarding-spec.md

docs: link-local frame transparency on kernel links — spec and per-datapath sections

2026-10-06 00:21:10 +08:00