[ns] FullTcp Questions
barve at CS.ColoState.EDU
Thu May 6 15:22:08 PDT 2004
I had asked these questions earlier, but didn't receive any reply.
I had three questions about FullTcp.
1. I wanted to send data along with the SYN packets for a connection with
FullTcp agents on both ends. I changed the option in the ns-default.tcl
file to make it possible to send data along with the SYN packet. However,
FullTcp assumes a default data segment of 536 bytes. And if the send data
with SYN packet option is set, it sends 546 bytes of data along with the
SYN packet. I don't want to send 536 bytes of data with the SYN; I only
want to send 64 bytes of data. How and where do I set this so that I can
send 64 bytes of data with the SYN and 536 bytes of data with data
2. Is there a call like 'ns_disconnect' which will allow me to disconnect
a TCP connection. I have three FullTcp agents A, B and C. The original
connection is between A and B. After some time, I want to break this
connection, and establish a fresh connection between A and C. Is there a
way to do this?
3. Does ns have any support for encryption? Are there any third-party
encryption modules which can be integrated into ns? If not, does anybody
know what sort of delays I can introduce during my simulation to simulate
encryption being done?
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