EthernetFragmentFcs¶

Namespace: inet

class EthernetFragmentFcs

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.

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 | +—————————————————————+

Inheritance diagram¶

Extends¶

Name	Type	Description
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.

Fields¶

Name	Type	Description
id	int
mutable	bool
complete	bool
correct	bool
properlyRepresented	bool
chunkLength	b
rawBin	string[]
rawHex	string[]
regionTags	SharingRegionTagSet::TagBaseRegionTag[]
chunkLength
fcs	uint32_t	actual value may be omitted depending on the selected fcsMode
fcsMode	ChecksumMode	meta information, not represented directly in the frame; NOTE: should be FcsMode, but OMMeT++ bug #1351 prevents that (fixed in OMNeT++ 6.2)
mFcs	bool	meta information, not represented directly in the frame

Properties¶

Name	Value	Description
beforeChange	handleChange()
descriptor	readonly
existingClass
packetData

Source code¶

//
// 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.
//
//  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 EthernetFragmentFcs extends EthernetFcs
{
    bool mFcs; // meta information, not represented directly in the frame
}

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