Axxius 800 User Manual

5-16 Axxius 800 - Release 2.2
CLI Commands
add
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
(4 bits)
Header Length
(4 bits)
Type-of-Service
(8 bits)
Total Length
(16 bits)
Identification
(16 bits)
Flags
(3 bits)
Fragment Offset
(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 -------------------------------------------------