Struct FdbEntry 

#[non_exhaustive]
pub struct FdbEntry { /* private fields */ }

FDB entry information.

Represents a bridge forwarding database entry, containing MAC address to port mappings, optional VLAN information, and VXLAN remote endpoint data.

Fields are pub(crate); consumers read via the per-field accessor methods. The struct is #[non_exhaustive] so the kernel can grow new FDB attribute fields without it being a breaking change.

Implementations

impl FdbEntry

pub fn from_neighbor(msg: &NeighborMessage) -> Option<Self>

Create from a NeighborMessage.

Returns None if the message doesn’t have a valid MAC address.

pub fn ifindex(&self) -> u32

Interface index (bridge port).

pub fn mac(&self) -> [u8; 6]

MAC address (6 bytes).

pub fn vlan(&self) -> Option<u16>

VLAN ID, if VLAN filtering is enabled on the bridge.

pub fn dst(&self) -> Option<IpAddr>

Destination IP for VXLAN remote VTEP, if set.

pub fn vni(&self) -> Option<u32>

VNI for VXLAN tunnels, if set.

pub fn state(&self) -> NeighborState

Entry state (permanent / reachable / stale / …).

pub fn flags(&self) -> u8

Entry flags (NTF_SELF / NTF_MASTER / NTF_EXT_LEARNED / …).

pub fn master(&self) -> Option<u32>

Master device index (bridge interface), if set.

pub fn is_permanent(&self) -> bool

Check if this is a permanent (static) entry.

pub fn is_dynamic(&self) -> bool

Check if this is a dynamic (learned) entry.

pub fn is_self(&self) -> bool

Check if entry is for the interface itself (NTF_SELF).

pub fn is_master(&self) -> bool

Check if entry is for the master bridge (NTF_MASTER).

pub fn is_extern_learn(&self) -> bool

Check if entry was externally learned (NTF_EXT_LEARNED).

pub fn is_sticky(&self) -> bool

Check if the entry is sticky (NTF_STICKY) — not refreshed or replaced by MAC learning.

pub fn is_router(&self) -> bool

Check if the destination is flagged as a router (NTF_ROUTER).

pub fn is_offloaded(&self) -> bool

Check if the entry is offloaded to hardware (NTF_OFFLOADED). This flag is set by the kernel and read-only.

pub fn is_proxy(&self) -> bool

Check if the entry is a proxy entry (NTF_PROXY).

pub fn mac_str(&self) -> String

Format MAC address as a colon-separated hex string.

Trait Implementations

impl Clone for FdbEntry

fn clone(&self) -> FdbEntry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FdbEntry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.