D-Link DGS-3700 user manual Ethernet, Offset Chunk

DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet Switch User Manual

Offset	Offset	Offset		Offset		Offset		Offset		Offset			Offset			Offset			Offset			Offset		Offset			Offset			Offset			Offset			Offset			Offset
Chunk	Chunk0	Chunk1	Chunk2		Chunk3		Chunk4			Chunk5			Chunk6			Chunk7			Chunk8			Chunk9		Chunk10			Chunk11			Chunk12			Chunk13			Chunk14			Chunk15
Byte	127	3	7			11		15			19			23		27			31			35		39			43			47			51			55			59
Byte	128	4	8			12		16			20			24		28			32			36		40			44			48			52			56			60
Byte	1	5	9			13		17			21			25		29			33			37		41			45			49			53			57			61
Byte	2	6	10			14		18			22			26		30			34			38		42			46			50			54			58			62
Offset	Offset	Offset		Offset		Offset			Offset			Offset			Offset			Offset			Offset			Offset		Offset			Offset			Offset			Offset			Offset			Offset
Chunk	Chunk15	Chunk16		Chunk17		Chunk18			Chunk19			Chunk20			Chunk21		Chunk22			Chunk23			Chunk24		Chunk25			Chunk26			Chunk27			Chunk28			Chunk129			Chunk30
Byte	63	67		71		75			79			83			87			91			95			99		103			107			111			115			119			123
Byte	64	68		72		76			80			84			88			92			96			100		104			108			112			116			120			124
Byte	65	69		73		77			81			85			89			93			97			101		105			109			113			117			121			125
Byte	66	70		74		78			82			86			90			94			98			102		106			110			114			118			122			126

Table-6:Chunk and Packet offset Indicates a completed ARP packet contained in the Ethernet frame, which is the pattern for the calculation of packet offset.

Ethernet ARP

Destination	Source address	Ethernet	H/W	Protocol	H/W	Protocol	Operation	Sender	Sender	Target	Target
address		type	type	type	address	address		H/W	protocol	H/W	protocol
					length	length		address	address	address	address
(6-byte)	(6-byte)	(2-byte)	(2-byte)	(2-byte)	(1-byte)	(1-byte)	(2-byte)	(6-byte)	(4-byte)	(6-byte)	(4-byte)
	01 02 03 04 05 06	0806							0a5a5a5a
									(10.90.90.90)

Table-7: A completed ARP packet contained in Ethernet frame

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