TCP Low Priority module (TCP-LP-MOD)

Submitted by hswong3i on Sun, 2006-06-04 01:00.

Information

As of 2.6.13, Linux supports pluggable congestion control algorithms. Due
to the limitation of the API, we take the following changes from the original
TCP-LP implementation:

We use newReno in most core CA handling. Only add some checking within
cong_avoid.
Add Error correcting in remote HZ, therefore remote HZ will be keeped on
checking and updating.
Handle calculation of One-Way-Delay (OWD) within rtt_sample, sicne OWD
have a similar meaning as RTT. Also correct the buggy formular.
Handle reaction for Early Congestion Indication (ECI) within pkts_acked,
as mentioned within pseudo code.
Handle OWD in relative format, where local time stamp will in
tcp_time_stamp format.

how to simulate this project

Submitted by rakesh (not verified) on Tue, 2007-03-27 19:50.

how to simulate this project in ns2

can any one help me

we don't support NS2 at all...

Submitted by hswong3i on Tue, 2007-04-03 10:53.

since this project is a clone to original TCP-LP project (http://www-ece.rice.edu/networks/TCP-LP/), but not its extension, we don't support NS2 simulation at all: the effective of TCP-LP is already proved by original development team, there is no point for us to repeat such work.

please refer to original TCP-LP implementation for NS2 supporting (http://www.ece.rice.edu/networks/TCP-LP/ns2/). BTW, their work is based on NS2 in 2004, you may found some difficulty in reproduce their environment.

on the other hand, you may try out NSC - Network Simulation Cradle (http://www.wand.net.nz/~stj2/nsc/):

This project presents the Network Simulation Cradle which "cradles" real world operating systems' network stacks in a wrapper that allows the protocols to be used in the ns-2 network simulator. This provides real world code in a simulation context, allowing accurate simulation at little extra cost. Our results show that ns-2's TCP implementations do not match observed behaviour from real machines in some respects and using NSC produces results closer to real world network stacks.

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Edison Wong

TCP-LP-MOD