A DCCP Module for NS-2

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Date	Item	Format	Size	Comments
24/03/2004	Source code (v. 1.1) (changes)	tar.gz	70 KB	The patch included are intended to be applied to the original ns-2.26 installation.
26/02/2004	Source code (v. 1.0)	tar.gz	69 KB	Includes installation instructions and a sample script. Note: The patch has been made and tested on ns-2.26.

Date	Description	Solution
01/03/2004	The compilation of certain DCCP files included in version 1.0 of the code fails with error message: error: default argument given for parameter ...	Add -fpermissive to CCOPT in Makefile.in. I.e. line 55 should look like CCOPT = @V_CCOPT@ -fpermissive Re-run ./configure before compiling. This issues is resolved in version 1.1 of the code.

There are currently no known bugs in the DCCP agents. Report bugs or other issues to me, and if I have time, I'll try to correct them.

The implementation supports

ns version 2.26 on Solaris, UNIX. (Note! Only tested with ns-2.26 on Solaris. As far as I know it works on Linux as well).
Two-way transfers.
Variable tracing.

Protocol functionality implemented include

Conformance to the October 2003 drafts.
All DCCP packet types except DCCP-Move and DCCP-Sync.
Connection initiation and termination.
Streamlined feature negotiation with options
- ChangeL (option 32)
- ConfirmL (option 33)
- ChangeR (option 34)
- ConfirmR (option 35)
DCCP options
- Padding (option 0)
- Ack vector (option 38-39)
- Elapsed time (option 46)
DCCP features
- Congestion Control ID (feature 1)
- ECN capable (feature 2)
- Ack ratio (feature 3)
- Use Ack vector (feature 4)
Explicit Congestion Notification (ECN) with Nonces.
DCCP congestion control where both half-connections use the same CCID.
TCP-like congestion control.
TFRC congestion control including the CCID specific options and features
- Loss event rate (option 192)
- Receive rate (option 194)
- Use Loss Event Rate (feature 192)