Carrier Access Axxius 800 user manual Ethernet Frame and IP Packet Format

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Ethernet Frame and IP Packet Format

	Ethernet 802.3 (raw) Frame - Datalink Header
6 bytes	6 bytes	2 bytes	46 to 1500 bytes	4 bytes
Dest MAC	Source MAC	Length	"FFF" followed by the data	FCS

------------Datalink (MAC) Header---------

-

----Data and CRC (Frame Check Sequence)---

-

IP Packet Format

Version	Header Length	Type-of-Service		Total Length
(4 bits)	(4 bits)	(8 bits)		(16 bits)
	Identification		Flags		Fragment Offset
	(16 bits)		(3 bits)		(13 bits)
Time-to-Live (8 bits)		Protocol (8 bits)	Header		Checksum (16 bits)
		Source IP Address
		Destination IP Address
		IP Options (+ padding)

Data portion of Datagram

----------------------------------------------- 32 Bits -------------------------------------------------

5-16 Axxius 800 - Release 2.2