ns-default.tcl

NS-2.28的802.11e协议扩展源代码

#
# Copyright (c) 1996-1997 Regents of the University of California.
# All rights reserved.
# 
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# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
# 	This product includes software developed by the MASH Research
# 	Group at the University of California Berkeley.
# 4. Neither the name of the University nor of the Research Group may be
#    used to endorse or promote products derived from this software without
#    specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#) $Header: /nfs/jade/vint/CVSROOT/ns-2/tcl/lib/ns-default.tcl,v 1.211 2000/08/08 06:12:32 sfloyd Exp $


#
#
# Set up all the default paramters.  Each default parameter
# is stored in the OTcl class template and copied from the
# class into the instance when the object is created
# (this happens in the Tcl/tcl-object.tcl helper library)
#

#########################################################
# Intitialization for directed diffusion : Chalermek

Agent/Diff_Sink set packetSize_ 512
Agent/Diff_Sink set interval_   0.5
Agent/Diff_Sink set random_     1
Agent/Diff_Sink set maxpkts_    10000
Agent/Diff_Sink set data_type_  0

########################################################

# Increased Floating Point Precision
set tcl_precision 17

Connector set debug_ false
TTLChecker set debug_ false

Trace set src_ -1
Trace set dst_ -1
Trace set callback_ 0
Trace set show_tcphdr_ 0
Trace set debug_ false

CMUTrace set debug_ false

Agent set fid_ 0
Agent set prio_ 0
Agent set agent_addr_ -1
Agent set agent_port_ -1
Agent set dst_addr_ -1
Agent set dst_port_ -1
Agent set flags_ 0
Agent set ttl_ 32 ; # arbitrary choice here
Agent set debug_ false
Agent set class_ 0

Scheduler/RealTime set maxslop_ 0.010; # max allowed slop b4 error (sec)

##Agent set seqno_ 0 now is gone
##Agent set class_ 0 now is gone

Agent/Ping set packetSize_ 64

Agent/UDP set packetSize_ 1000
Agent/UDP instproc done {} { }

Agent/TCP set seqno_ 0
Agent/TCP set t_seqno_ 0
Agent/TCP set maxburst_ 0
Agent/TCP set maxcwnd_ 0
Agent/TCP set window_ 20
Agent/TCP set windowInit_ 1
Agent/TCP set windowInitOption_ 1
Agent/TCP set syn_ false
Agent/TCP set windowOption_ 1
Agent/TCP set windowConstant_ 4
Agent/TCP set windowThresh_ 0.002
Agent/TCP set decrease_num_ 0.5
Agent/TCP set increase_num_ 1.0
Agent/TCP set overhead_ 0
Agent/TCP set ecn_ 0
Agent/TCP set old_ecn_ 0
Agent/TCP set packetSize_ 1000
Agent/TCP set tcpip_base_hdr_size_ 40
Agent/TCP set bugFix_ true
Agent/TCP set timestamps_ false
Agent/TCP set slow_start_restart_ true
Agent/TCP set restart_bugfix_ true
Agent/TCP set tcpTick_ 0.1
Agent/TCP set maxrto_ 100000
Agent/TCP set srtt_init_ 0
Agent/TCP set rttvar_init_ 12
Agent/TCP set rtxcur_init_ 6.0
Agent/TCP set T_SRTT_BITS 3
Agent/TCP set T_RTTVAR_BITS 2
Agent/TCP set rttvar_exp_ 2
Agent/TCP instproc done {} { }
Agent/TCP set noFastRetrans_ false

Agent/TCP set dupacks_ 0
Agent/TCP set ack_ 0
Agent/TCP set cwnd_ 0
Agent/TCP set awnd_ 0
Agent/TCP set ssthresh_ 0
Agent/TCP set rtt_ 0
Agent/TCP set srtt_ 0
Agent/TCP set rttvar_ 0
Agent/TCP set backoff_ 0
Agent/TCP set maxseq_ 0
Agent/TCP set singledup_ 0
Agent/TCP set precisionReduce_ false

Agent/TCP set ndatapack_ 0
Agent/TCP set ndatabytes_ 0
Agent/TCP set nackpack_ 0
Agent/TCP set nrexmit_ 0
Agent/TCP set nrexmitpack_ 0
Agent/TCP set nrexmitbytes_ 0
Agent/TCP set trace_all_oneline_ false

Agent/TCP set QOption_ 0 
Agent/TCP set EnblRTTCtr_ 0
Agent/TCP set control_increase_ 0

# XXX Generate nam trace or plain old text trace for variables. 
# When it's true, generate nam trace.
Agent/TCP set nam_tracevar_ false

Agent/TCP/Fack set ss-div4_ false
Agent/TCP/Fack set rampdown_ false

Agent/TCP set eln_ 0
Agent/TCP set eln_rxmit_thresh_ 1
Agent/TCP set delay_growth_ false

Agent/TCP set CoarseTimer_      0

Agent/TCPSink set sport_        0
Agent/TCPSink set dport_        0         

#XXX other kinds of sinks -> should reparent
Agent/TCPSink set packetSize_ 40
Agent/TCPSink set maxSackBlocks_ 3
Agent/TCPSink set ts_echo_bugfix_ false
Agent/TCPSink set generateDSacks_ false
Agent/TCPSink set RFC2581_immediate_ack_ true

Agent/TCPSink/DelAck set interval_ 100ms
catch {
	Agent/TCPSink/Asym set interval_ 100ms
	Agent/TCPSink/Asym set maxdelack_ 5
}
Agent/TCPSink/Sack1/DelAck set interval_ 100ms

# setting this to 1 implements some changes to reno 
# proposed by Janey Hoe (other than fixing reno's
# unnecessary retransmit timeouts)
Agent/TCP/Newreno set newreno_changes_ 0
# setting this to 1 allows the retransmit timer to expire for
# a window with many packet drops
Agent/TCP/Newreno set newreno_changes1_ 0
Agent/TCP/Newreno set partial_window_deflation_ 0
Agent/TCP/Newreno set exit_recovery_fix_ 0

Agent/TCP/Vegas set v_alpha_ 1
Agent/TCP/Vegas set v_beta_ 3
Agent/TCP/Vegas set v_gamma_ 1
Agent/TCP/Vegas set v_rtt_ 0

Agent/TCP/Vegas/RBP set rbp_scale_ 0.75
# rbp_rate_algorithm_'s are defined in tcp-rbp.cc.
# 1=RBP_VEGAS_RATE_ALGORITHM (default),
# 2=RBP_CWND_ALGORITHM
Agent/TCP/Vegas/RBP set rbp_rate_algorithm_ 1
Agent/TCP/Vegas/RBP set rbp_segs_actually_paced_ 0
Agent/TCP/Vegas/RBP set rbp_inter_pace_delay_ 0

Agent/TCP/Reno/RBP set rbp_scale_ 0.75
Agent/TCP/Reno/RBP set rbp_segs_actually_paced_ 0
Agent/TCP/Reno/RBP set rbp_inter_pace_delay_ 0
# Reno/RBP supports only RBP_CWND_ALGORITHM 
# Agent/TCP/Reno/RBP set rbp_rate_algorithm_ 2

Agent/TCP/Asym set g_ 0.125
Agent/TCP/Reno/Asym set g_ 0.125
Agent/TCP/Newreno/Asym set g_ 0.125

# RFC793eduTcp -- 19990820, [e-mail]
Agent/TCP/RFC793edu set add793expbackoff_  true 
Agent/TCP/RFC793edu set add793jacobsonrtt_ false
Agent/TCP/RFC793edu set add793fastrtx_     false
Agent/TCP/RFC793edu set add793slowstart_   false
Agent/TCP/RFC793edu set add793additiveinc_ false
Agent/TCP/RFC793edu set add793karnrtt_     true 
Agent/TCP/RFC793edu set rto_               60
Agent/TCP/RFC793edu set syn_               true
Agent/TCP/RFC793edu set add793exponinc_    false

Agent/TFRC set packetSize_ 1000 
Agent/TFRC set df_ 0.95 ;	# decay factor for accurate RTT estimate
Agent/TFRC set tcp_tick_ 0.1 ;	
Agent/TFRC set ndatapack_ 0 ;	# Number of packets sent
Agent/TFRC set srtt_init_ 0 ;	# Variables for tracking RTT	
Agent/TFRC set rttvar_init_ 12  
Agent/TFRC set rtxcur_init_ 6.0	
Agent/TFRC set rttvar_exp_ 2	
Agent/TFRC set T_SRTT_BITS 3	
Agent/TFRC set T_RTTVAR_BITS 2	
Agent/TFRC set InitRate_ 300 ;	# Initial send rate	
Agent/TFRC set overhead_ 0 ;	# If > 0, dither outgoing packets
Agent/TFRC set ssmult_ 2 ; 	# Rate of increase during slow-start:
Agent/TFRC set bval_ 1 ;	# Value of B for TCP formula
Agent/TFRC set ca_ 1 ; 	 	# Enable Sqrt(RTT) congestion avoidance
Agent/TFRC set printStatus_ 0 
Agent/TFRC set conservative_ 0 ;  # Set to true for a conservative 
				# response to heavy congestion.

Agent/TFRCSink set packetSize_ 40
Agent/TFRCSink set InitHistorySize_ 100000
Agent/TFRCSink set NumFeedback_ 1 
Agent/TFRCSink set AdjustHistoryAfterSS_ 1
Agent/TFRCSink set NumSamples_ -1
Agent/TFRCSink set discount_ 1;	# History Discounting
Agent/TFRCSink set printLoss_ 0
Agent/TFRCSink set smooth_ 1 ;	# smoother Average Loss Interval
Agent/TFRCSink set minlc_ 4
Agent/TFRCSink set algo_ 1 ;  	# 1: algo from sigcomm paper 2: ewma 
				# 3: fixed window
Agent/TFRCSink set maxint_ 1000 ;     # max loss interval history 
Agent/TFRCSink set history_ 0.75 ;    # loss history for EWMA

if [TclObject is-class Agent/TCP/FullTcp] {
	Agent/TCP/FullTcp set segsperack_ 1; # ACK frequency
	Agent/TCP/FullTcp set segsize_ 536; # segment size
	Agent/TCP/FullTcp set tcprexmtthresh_ 3; # num dupacks to enter recov
	Agent/TCP/FullTcp set iss_ 0; # Initial send seq#
	Agent/TCP/FullTcp set nodelay_ false; # Nagle disable?
	Agent/TCP/FullTcp set data_on_syn_ false; # allow data on 1st SYN?
	Agent/TCP/FullTcp set dupseg_fix_ true ; # no rexmt w/dup segs from peer
	Agent/TCP/FullTcp set dupack_reset_ false; # exit recov on ack < highest
	Agent/TCP/FullTcp set interval_ 0.1 ; # delayed ACK interval 100ms 
	Agent/TCP/FullTcp set close_on_empty_ false; # close conn if sent all
	Agent/TCP/FullTcp set ts_option_size_ 10; # in bytes
	Agent/TCP/FullTcp set reno_fastrecov_ true; # fast recov true by default
	Agent/TCP/FullTcp set pipectrl_ false; # use "pipe" ctrl
	Agent/TCP/FullTcp set open_cwnd_on_pack_ true; # ^ win on partial acks?
	Agent/TCP/FullTcp set halfclose_ false; # do simplex closes (shutdown)?

	Agent/TCP/FullTcp/Newreno set recov_maxburst_ 2; # max burst dur recov

	Agent/TCP/FullTcp/Sack set sack_block_size_ 8; # bytes in a SACK block
	Agent/TCP/FullTcp/Sack set sack_option_size_ 2; # bytes in opt hdr
	Agent/TCP/FullTcp/Sack set max_sack_blocks_ 3; # max # of sack blks
}

# Default values used by wireless simulations
Agent/Null set sport_           0
Agent/Null set dport_           0

Agent/CBR set sport_            0
Agent/CBR set dport_            0

# Http invalidation agent
Agent/HttpInval set inval_hdr_size_ 40

Agent/RTP set seqno_ 0
Agent/RTP set interval_ 3.75ms
Agent/RTP set random_ 0
Agent/RTP set packetSize_ 210
Agent/RTP set maxpkts_ 0x10000000
Agent/RTP instproc done {} { }

Agent/RTCP set seqno_ 0

Agent/Message set packetSize_ 180

Agent/LossMonitor set nlost_ 0
Agent/LossMonitor set npkts_ 0
Agent/LossMonitor set bytes_ 0
Agent/LossMonitor set lastPktTime_ 0
Agent/LossMonitor set expected_ 0

# RAP
Agent/RAP set packetSize_ 512
Agent/RAP set seqno_ 0
Agent/RAP set sessionLossCount_ 0
Agent/RAP set ipg_ 2.0
Agent/RAP set alpha_ 1.0
Agent/RAP set beta_ 0.5
Agent/RAP set srtt_ 2.0
Agent/RAP set variance_ 0.0
Agent/RAP set delta_ 0.5
Agent/RAP set mu_ 1.2
Agent/RAP set phi_ 4.0
Agent/RAP set timeout_ 2.0
Agent/RAP set overhead_ 0
Agent/RAP set useFineGrain_ 0
Agent/RAP set kfrtt_ 0.9
Agent/RAP set kxrtt_ 0.01
Agent/RAP set debugEnable_ 0
Agent/RAP set rap_base_hdr_size_ 44
Agent/RAP set dpthresh_ 50
Agent/RAP instproc done {} { }

# Routing protocol agents
Agent/Mcast/Control set packetSize_ 80

# Dynamic routing defaults
Agent/rtProto set preference_ 200		;# global default preference
Agent/rtProto/Direct set preference_ 100
Agent/rtProto/DV set preference_	120
Agent/rtProto/DV set INFINITY		 [Agent set ttl_]
Agent/rtProto/DV set advertInterval	  2

#Agent/Decapsulator set off_encap_ 0
#Agent/Encapsulator set off_encap_ 0
Agent/Encapsulator set status_ 1
Agent/Encapsulator set overhead_ 20


Integrator set lastx_ 0.0
Integrator set lasty_ 0.0
Integrator set sum_ 0.0

# 10->50 to be like ns-1
Queue set limit_ 50
Queue set blocked_ false
Queue set unblock_on_resume_ true

Queue set interleave_ false
Queue set acksfirst_ false
Queue set ackfromfront_ false
Queue set debug_ false

Queue/SFQ set maxqueue_ 40
Queue/SFQ set buckets_ 16

Queue/FQ set secsPerByte_ 0
# change DropTail to RED for RED on individual queues
FQLink set queueManagement_ DropTail

Queue/DropTail set drop_front_ false
Queue/DropTail set pqlim_      -1	;# no s/w based QoS

Queue/DropTail/PriQueue set Prefer_Routing_Protocols    1

Queue/RED set bytes_ false
Queue/RED set queue_in_bytes_ false
Queue/RED set thresh_ 5
Queue/RED set maxthresh_ 15
Queue/RED set mean_pktsize_ 500
Queue/RED set q_weight_ 0.002