cr kit packet formatting
DESCRIPTION
CR Kit Packet Formatting. WINLAB Rutgers University Date : June 11 2010 Authors : Khanh Le, [email protected] Prasanthi Maddala , [email protected]. Outline. Ethernet Frame, IP/TCP/UDP headers Packet types Host -> HW : three packet types - PowerPoint PPT PresentationTRANSCRIPT
CR KitPacket Formatting
WINLAB
Rutgers University
Date : June 11 2010
Authors :
Khanh Le, [email protected]
Prasanthi Maddala, [email protected]
Outline
Ethernet Frame, IP/TCP/UDP headers
Packet types
Host -> HW : three packet types RMAP packets (register map read/write) Data packets TCP/IP packets
HW -> Host : three packet types RMAP packets (read data) Data packets TCP/IP packets
CR Kit Packet Format
Ethernet Header :
Board MAC address : fixed value
Host MAC Address : machine dependent e.g. as defined by Ethernet card
IP Header :
Board IP : 192.168.0.0
Host IP : 192.168.0.1
UDP for board level communication e.g. RMAP and data packets
HOST -> HW : UDP port 1000 – RMAP UDP port 1001 – INTR (not used for Host -> HW) UDP port 1002 – Data
HW -> HOST : UDP port 1000 – RMAP UDP port 1001 – INTR UDP port 1002 – Data
TCP for any other applications e.g. ARP, DHCP.
Ex. 1) RMAP packet to HW : UDP src port = 00, UDP dest port = 00
2) Data packets to HW : UDP src port = 02, UDP dest port = 02
3) RMAP packet to HOST: UDP src port = 00, UDP dest port = 00
4) RMAP INTR packet to HOST: UDP src port = 01, UDP dest port = 01
5) Data packet to HOST: UDP src port = 02, UDP dest port = 02
Ethernet Frame (source : wikipedia)
802.1Q header is NOT used.
Type II Ethernet Frame format for TCP/IP application.
EtherType = 0x0800 (IPv4), 0x0806 (ARP)
Ethernet payload = 46-1500 bytes
http://en.wikipedia.org/wiki/Ethernet_frame
EtherType (source : wikipedia)
IPv4 packet header 1/3 (source : wikipedia)
http://en.wikipedia.org/wiki/IPv4#Header
IPv4 packet header 2/3 (source : wikipedia)
http://en.wikipedia.org/wiki/IPv4#Header
IPv4 packet header 3/3 (source : wikipedia)
http://en.wikipedia.org/wiki/IPv4#Header
Fragmentation and Reassembly 1/2 (source : wikipedia)
http://en.wikipedia.org/wiki/IPv4#Header
Fragmentation and Reassembly 2/2 (source : wikipedia)
http://en.wikipedia.org/wiki/IPv4#Header
TCP (source : wikipedia)
http://en.wikipedia.org/wiki/Transmission_Control_Protocol
UDP (source : wikipedia)
http://en.wikipedia.org/wiki/User_Datagram_Protocol