EthernetFragmentPhyHeader¶

class EthernetFragmentPhyHeader

This class represents an Ethernet fragment PHY header as defined in the IEEE Std 802.3-2018, IEEE Standard for Ethernet.

0 1 2 3: 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

| Preamble (0x55) | + +—————+ | | SMD-Sx | +———————————————–+—————+

0 1 2 3: 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

Usage diagram¶

Inheritance diagram¶

Extends¶

Name	Type	Description
EthernetPhyHeaderBase	class	This is a base class for all IEEE 802.3 Ethernet PHY headers defined the IEEE Std 802.3-2018, IEEE Standard for Ethernet.

Fields¶

Name	Type	Description
id	int
mutable	bool
complete	bool
correct	bool
properlyRepresented	bool
chunkLength	b
rawBin	string[]
rawHex	string[]
regionTags	SharingRegionTagSet::TagBaseRegionTag[]
chunkLength
preambleType	EthernetPhyHeaderType
smdNumber	uint8_t	0-3, see SMD_Sx or SMD_Cx
fragmentNumber	uint8_t	0-3 (real fragment number modulo 4)

Properties¶

Name	Value	Description
beforeChange	handleChange()
descriptor	readonly
existingClass
packetData

Source code¶

//
// This class represents an Ethernet fragment PHY header as defined in the IEEE
// Std 802.3-2018, IEEE Standard for Ethernet.
//
//  0                   1                   2                   3
//  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +---------------------------------------------------------------+
// |                        Preamble (0x55)                        |
// +                                               +---------------+
// |                                               |     SMD-Sx    |
// +-----------------------------------------------+---------------+
//
//  0                   1                   2                   3
//  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +---------------------------------------------------------------+
// |                        Preamble (0x55)                        |
// +                               +---------------+---------------+
// |                               |     SMD-Cx    |   FragNumber  |
// +-------------------------------+---------------+---------------+
//
class EthernetFragmentPhyHeader extends EthernetPhyHeaderBase
{
    EthernetPhyHeaderType preambleType = SFD;
    uint8_t smdNumber = 0;       // 0-3, see SMD_Sx or SMD_Cx
    uint8_t fragmentNumber = 0;  // 0-3 (real fragment number modulo 4)
}

File: src/inet/physicallayer/wired/ethernet/EthernetPhyHeader.msg