Struct SingleVlanHeader

pub struct SingleVlanHeader {
    pub pcp: VlanPcp,
    pub drop_eligible_indicator: bool,
    pub vlan_id: VlanId,
    pub ether_type: EtherType,
}

IEEE 802.1Q VLAN Tagging Header

Fields

pcp: VlanPcp

A 3 bit number which refers to the IEEE 802.1p class of service and maps to the frame priority level.

drop_eligible_indicator: bool

Indicate that the frame may be dropped under the presence of congestion.

vlan_id: VlanId

12 bits vland identifier.

ether_type: EtherType

“Tag protocol identifier”: Type id of content after this header. Refer to the “EtherType” for a list of possible supported values.

Implementations

impl SingleVlanHeader

pub const LEN: usize = 4usize

Serialized size of an VLAN header in bytes/octets.

pub const SERIALIZED_SIZE: usize = 4usize

👎Deprecated since 0.14.0: Use SingleVlanHeader::LEN instead

pub fn read_from_slice( slice: &[u8], ) -> Result<(SingleVlanHeader, &[u8]), LenError>

👎Deprecated since 0.10.1: Use SingleVlanHeader::from_slice instead.

Read an SingleVlanHeader from a slice and return the header & unused parts of the slice.

pub fn from_slice(slice: &[u8]) -> Result<(SingleVlanHeader, &[u8]), LenError>

Read an SingleVlanHeader from a slice and return the header & unused parts of the slice.

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

Read an SingleVlanHeader from a static sized byte array.

pub fn read<T: Read + Seek + Sized>( reader: &mut T, ) -> Result<SingleVlanHeader, Error>

Available on crate feature std only.

Read a IEEE 802.1Q VLAN tagging header

pub fn write<T: Write + Sized>(&self, writer: &mut T) -> Result<(), Error>

Available on crate feature std only.

Write the IEEE 802.1Q VLAN tagging header

pub fn header_len(&self) -> usize

Length of the serialized header in bytes.

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

Returns the serialized form of the header or an value error in case the header values are outside of range.

Trait Implementations

impl Clone for SingleVlanHeader

fn clone(&self) -> SingleVlanHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SingleVlanHeader

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

Formats the value using the given formatter.

impl Default for SingleVlanHeader

fn default() -> SingleVlanHeader

Returns the “default value” for a type.

impl PartialEq for SingleVlanHeader

fn eq(&self, other: &SingleVlanHeader) -> 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 Eq for SingleVlanHeader

impl StructuralPartialEq for SingleVlanHeader