如何在Python 2.7 UDP套接字中创建序列号和ACK
我有下面的代码。现在,我只是将序列号如何在Python 2.7 UDP套接字中创建序列号和ACK,python,python-2.7,sockets,header,udp,Python,Python 2.7,Sockets,Header,Udp,我有下面的代码。现在,我只是将序列号和ACK放入有效负载中。我想知道两件事: 如何将此信息放入客户端和服务器的标题中 如何在客户端上打印ACK,在服务器上打印序列号 我正在Linux上使用Python 2.7.13 客户端: import socket client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) client_socket.settimeout(4.0) message = "Sequence Number
和ACK
放入有效负载中。我想知道两件事:
如何将此信息放入客户端和服务器的标题中
如何在客户端上打印ACK,在服务器上打印序列号
我正在Linux上使用Python 2.7.13
客户端:
import socket
client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
client_socket.settimeout(4.0)
message = "Sequence Number: 100\nACK: 1"
addr = ("127.0.0.1", 6000)
client_socket.sendto(message, addr)
try:
data, server = client_socket.recvfrom(1024)
# Print the ACK the server sent
except socket.timeout:
print('Timed out')
import socket
server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server_socket.bind(("127.0.0.1", 6000))
while True:
message, address = server_socket.recvfrom(1024)
# Print the sequence number the client sent
# Set ACK to 0 and send this ACK to the client
server_socket.sendto(message, address)
服务器:
import socket
client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
client_socket.settimeout(4.0)
message = "Sequence Number: 100\nACK: 1"
addr = ("127.0.0.1", 6000)
client_socket.sendto(message, addr)
try:
data, server = client_socket.recvfrom(1024)
# Print the ACK the server sent
except socket.timeout:
print('Timed out')
import socket
server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server_socket.bind(("127.0.0.1", 6000))
while True:
message, address = server_socket.recvfrom(1024)
# Print the sequence number the client sent
# Set ACK to 0 and send this ACK to the client
server_socket.sendto(message, address)