Struct ExtendedCommunity 

pub struct ExtendedCommunity(/* private fields */);

RFC 4360 Extended Community — 8-byte value stored as u64.

Wire layout: type (1) + sub-type (1) + value (6). Bit 6 of the type byte: 0 = transitive, 1 = non-transitive.

Implementations

impl ExtendedCommunity

pub fn new(raw: u64) -> Self

Create from a raw 8-byte value.

pub fn as_u64(self) -> u64

Return the raw 8-byte value.

pub fn type_byte(self) -> u8

High byte — IANA-assigned type.

pub fn subtype(self) -> u8

Second byte — sub-type within the type.

pub fn is_transitive(self) -> bool

Transitive if bit 6 of the type byte is 0.

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

Bytes 2-7 of the community value.

pub fn route_target(self) -> Option<(u32, u32)>

Decode as Route Target (sub-type 0x02).

Returns (global_admin, local_admin) as raw u32 values. The interpretation of global_admin depends on the type byte:

• Type 0x00 (2-octet AS specific): global = ASN (fits u16), local = u32
• Type 0x01 (IPv4 address specific): global = IPv4 addr as u32, local = u16
• Type 0x02 (4-octet AS specific): global = ASN (u32), local = u16

Callers that need to distinguish these encodings (e.g. for display as RT:192.0.2.1:100 vs RT:65001:100) must also check type_byte().

pub fn route_origin(self) -> Option<(u32, u32)>

Decode as Route Origin (sub-type 0x03).

Same layout as route_target() — returns raw (global_admin, local_admin) with the same type-byte-dependent interpretation. Check type_byte() to distinguish 2-octet AS, IPv4-address, and 4-octet AS encodings.

impl ExtendedCommunity

pub fn as_flowspec_action(&self) -> Option<FlowSpecAction>

Try to decode this extended community as a FlowSpec action.

pub fn from_flowspec_action(action: &FlowSpecAction) -> Self

Create an extended community from a FlowSpec action.

Trait Implementations

impl Clone for ExtendedCommunity

fn clone(&self) -> ExtendedCommunity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExtendedCommunity

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

Formats the value using the given formatter.

impl Display for ExtendedCommunity

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

Formats the value using the given formatter.

impl Hash for ExtendedCommunity

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ExtendedCommunity

fn eq(&self, other: &ExtendedCommunity) -> 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 ExtendedCommunity

impl Eq for ExtendedCommunity

impl StructuralPartialEq for ExtendedCommunity