On 7/27/06, burakgmail-dccp@xxxxxxxxx <burakgmail-dccp@xxxxxxxxx> wrote:
Hi, I started using ttcp (ttcp_acme actually) to test DCCP in my linux box (v2.6.17.7). I did some initial tests with ccid2, but could not manage switching to ccid3. How can I make ttcp to use ccid3? Thanks. Burak Gorkemli Ph.D. Candidate Koc University Turkey
I would actually recommend using iperf as a side remark. You need to set the default ccid to 3 as 2 is the default and ttcp doesn't allow you to chose the CCID. Here is a script I use for setup: sudo modprobe dccp sudo modprobe dccp_ccid3 sudo sysctl -w net.dccp.default.seq_window=10000 sudo sysctl -w net.dccp.default.send_ackvec=0 sudo sysctl -w net.dccp.default.rx_ccid=3 sudo sysctl -w net.dccp.default.tx_ccid=3 send_ackvec should be turned off for CCID3 and the seq_window is for connections that get out of sync (but you need a recent git tree for the fix). CCID3 performance has some issues which I'm working on at present too. Ian -- Ian McDonald Web: http://wand.net.nz/~iam4 Blog: http://imcdnzl.blogspot.com WAND Network Research Group Department of Computer Science University of Waikato New Zealand - : send the line "unsubscribe dccp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
