EthernetFcs

class

This class represents an Ethernet FCS as defined in the section 3.2.9 Frame Check Sequence (FCS) field of 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 +---------------------------------------------------------------+ | FCS | +---------------------------------------------------------------+

Usage diagram

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Extends

Name	Type	Description
FieldsChunk	class	(no description)

Known subclasses

Name	Type	Description
EthernetFragmentFcs	class	This class represents an Ethernet fragment FCS as defined in the section 3.2.9 Frame Check Sequence (FCS) field of the IEEE Std 802.3-2018, IEEE Standard for Ethernet.

Fields

Name	Type	Description
chunkLength	b
fcs	uint32_t	actual value may be omitted depending on the selected fcsMode
fcsMode	FcsMode	meta information, not represented directly in the frame
id	int
mutable	bool
complete	bool
correct	bool
properlyRepresented	bool
rawBin	string[]
rawHex	string[]
regionTags	SharingRegionTagSet::TagBaseRegionTag[]

Source code

//
// This class represents an Ethernet FCS as defined in the section 3.2.9 Frame
// Check Sequence (FCS) field of 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
// +---------------------------------------------------------------+
// |                              FCS                              |
// +---------------------------------------------------------------+
//
class EthernetFcs extends FieldsChunk
{
    chunkLength = B(4);
    uint32_t fcs; // actual value may be omitted depending on the selected fcsMode

    FcsMode fcsMode = FCS_MODE_UNDEFINED; // meta information, not represented directly in the frame
}

File: src/inet/linklayer/ethernet/common/EthernetMacHeader.msg