Struct MtuExceeded 

pub struct MtuExceeded {
    pub dest_addr: NodeAddr,
    pub reporter: NodeAddr,
    pub mtu: u16,
}

Error indicating a forwarded packet exceeded the next-hop transport MTU.

Generated by a transit router when send_encrypted_link_message() fails with TransportError::MtuExceeded. The reporter includes the bottleneck MTU so the source can immediately reduce its sending MTU.

Wire Format

Offset	Field	Size	Description
0	msg_type	1 byte	0x22
1	flags	1 byte	Reserved
2	dest_addr	16 bytes	The destination we were forwarding
18	reporter	16 bytes	NodeAddr of reporting router
34	mtu	2 bytes	Bottleneck MTU (u16 LE)

Payload: 36 bytes

Fields

dest_addr: NodeAddr

Destination that the oversized packet was heading to.

reporter: NodeAddr

Router that detected the MTU violation.

mtu: u16

Transport MTU at the bottleneck hop.

Implementations

impl MtuExceeded

pub fn new(dest_addr: NodeAddr, reporter: NodeAddr, mtu: u16) -> Self

Create a new MtuExceeded error.

pub fn encode(&self) -> Vec<u8>

Encode as wire format (4-byte FSP prefix + msg_type + body).

Error signals use phase=0x0 with U flag set.

pub fn decode(payload: &[u8]) -> Result<Self, ProtocolError>

Decode from wire format (after FSP prefix and msg_type byte consumed).

Trait Implementations

impl Clone for MtuExceeded

fn clone(&self) -> MtuExceeded

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MtuExceeded

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

Formats the value using the given formatter.