HLD: config-driven static L2 forwarding (per-VLAN MAC-learning disable, BUM flood disable, static FDB)#2468
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…sable, BUM flood disable, static FDB) Signed-off-by: Anant Kishor Sharma <anant.kishor-sharma@hpe.com>
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Static L2 forwarding: per-VLAN mac_learning, BUM flood control, static FDB
sonic-net/sonic-swss#4780
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What
Adds a High Level Design for config-driven static L2 forwarding — three independent,
per-VLAN, SAI-backed features, each usable on its own and defaulting to today's behavior
(no functional change unless explicitly configured):
SAI_VLAN_ATTR_LEARN_DISABLESAI_VLAN_ATTR_*_FLOOD_CONTROL_TYPE = NONESAI_FDB_ENTRY_TYPE_STATIC(completes the approvedLayer-2 Forwarding Enhancements design, Layer 2 forwarding enhancements HLD #379)
The design adds CONFIG_DB schema + YANG + the config→APPL plumbing (
cfgmgr+orchagent);the SAI attributes already exist and
FdbOrchis unchanged.Document
doc/static-l2-forwarding/Static_L2_Forwarding_HLD.mdRelated PRs:
Feature request: sonic-net/sonic-buildimage#28539.