Struct VlanTag 

pub struct VlanTag {
    pub tpid: u16,
    pub tci: u16,
}

IEEE 802.1Q VLAN tag

Layout (network byte order): TPID: 16 bits (0x8100 for 802.1Q) TCI: 16 bits = PCP (3) + DEI (1) + VID (12)

Fields

tpid: u16

Tag Protocol Identifier (always 0x8100 for 802.1Q)

tci: u16

Tag Control Information (PCP + DEI + VID)

Implementations

impl VlanTag

pub fn new(vid: u16, pcp: u8, dei: bool) -> Self

Create a new VLAN tag with the given parameters.

• vid: VLAN Identifier (0-4094, 12 bits)
• pcp: Priority Code Point (0-7, 3 bits)
• dei: Drop Eligible Indicator

pub fn vid(&self) -> u16

Extract the 12-bit VLAN Identifier from TCI.

pub fn pcp(&self) -> u8

Extract the 3-bit Priority Code Point from TCI.

pub fn dei(&self) -> bool

Extract the Drop Eligible Indicator bit from TCI.

pub fn to_bytes(&self) -> [u8; 4]

Serialize the tag to 4 bytes in network byte order.

pub fn from_bytes(bytes: &[u8; 4]) -> Self

Parse a VLAN tag from 4 bytes in network byte order.

Trait Implementations

impl Clone for VlanTag

fn clone(&self) -> VlanTag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VlanTag

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

Formats the value using the given formatter.

impl PartialEq for VlanTag

fn eq(&self, other: &VlanTag) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for VlanTag

impl Eq for VlanTag

impl StructuralPartialEq for VlanTag