def __init__(self,
transport,
source_address,
source_port,
destination_address,
destination_port,
app=None,
window=1000):
Connection.__init__(self, transport, source_address, source_port,
destination_address, destination_port, app)
### Sender functionality
self.totalQueueingDelay = 0.0
self.totalPacketsSent = 0
self.output = False
self.dynamic = True
self.proveTimer = False
# send window; represents the total number of bytes that may
# be outstanding at one time
# Step 2
self.window = window
# send buffer
self.send_buffer = SendBuffer()
# maximum segment size, in bytes
# self.mss = 1000
self.mss = min(1000, window)
# largest sequence number that has been ACKed so far; represents
# the next sequence number the client expects to receive
self.sequence = 0
# retransmission timer
self.timer = None
# timeout duration in seconds
self.timeout = 1.0
if self.dynamic:
self.timeout = 3.0
# estimated rtt
self.est_rtt = None
# alpha
self.alpha = 0.125
# variation rtt
self.var_rtt = None ## TODO: revisit this later
# beta
self.beta = 0.25
### Receiver functionality
# receive buffer
self.receive_buffer = ReceiveBuffer()
# ack number to send; represents the largest in-order sequence
# number not yet received
self.ack = 0
def __init__(self,transport,source_address,source_port,
destination_address,destination_port,app=None,window=1000):
Connection.__init__(self,transport,source_address,source_port,
destination_address,destination_port,app)
### Sender functionality
self.totalQueueingDelay = 0.0
self.totalPacketsSent = 0
self.port = source_port
self.dynamic = True
self.output = False
self.proveTimer = False
self.proveCong = False
self.stand_trace = False
self.seq_plot = False
self.graph1 = True
self.graph2 = False # == This is controlled in the transfer file by Sim.set_debug('Link')
self.graph3 = False
self.graph4 = False
if self.graph2:
Sim.set_debug('Link')
# send window; represents the total number of bytes that may
# be outstanding at one time
# maximum segment size, in bytes
self.mss = 1000
# Step 2
self.window = self.mss ######################### This one gets the mess adjusted out of it
# threshold for slow start
self.thresh = 100000
self.inc_sum = 0
# for fast retransmit
self.last_ack = 0
self.dup_counter = 0
self.drop_next = False
self.has_dropped = False
self.dropped_count = 0
# send buffer
self.send_buffer = SendBuffer()
############################################# (this never gets adjusted)
#self.mss = min(1000, window) ################ TODO: handle the case where window is bigger than mss
# largest sequence number that has been ACKed so far; represents
# the next sequence number the client expects to receive
self.sequence = 0
# retransmission timer
self.timer = None
# timeout duration in seconds
self.timeout = 1.0
if self.dynamic:
self.timeout = 3.0
# estimated rtt
self.est_rtt = None
# alpha
self.alpha = 0.125
# variation rtt
self.var_rtt = None ## TODO: revisit this later
# beta
self.beta = 0.25
### Receiver functionality
# receive buffer
self.receive_buffer = ReceiveBuffer()
# ack number to send; represents the largest in-order sequence
# number not yet received
self.ack = 0
