An Investigation into Transport Protocols and Data Transport ...

10.3. Future Directions 257
A more immediate problems to the deployment of non-TCP based transport
are those associated with firewalls due to usage caps on UDP traffic and
non-regular port numbers.
10.3.5 Further Tests
Web Traffic
To make the tests more realistic, and as defined in Chapter 7, the systematic
series of tests presented in Chapter 8 should be extended to incorporate
varying levels of web traffic. The effect of this would be that the changes of
the bottleneck queue size may affect the dynamic between New-TCP flows.
One specific example would be how FAST TCP will scale under such
scenario’s and whether the ‘noise’ imposed by the queue dynamics will have
an adverse effect on the delayed-based portion of the algorithm. The effect
upon the other algorithms should be less noticeable; however, algorithm
problems involving large bursts of packet due to large α values may become
more apparent due to the queuing dynamics imposed with web traffic.
Impact of Reverse Path Topologies
With the increased aggressiveness of New-TCP algorithms in order to attain
large cwnd values required for high speed transport, it is important to
understand the effects and causes of packet bursts in order to better design
new transport algorithms [BA02, BPS99]. This is also important in the provisioning
of network router queues and the designation of AQM parameters.
A direct area of interest related to packet bursts is the use of packet
pacing whereby the sending of packets is spread over the period of a single
RTT in order to prevent clustering of data packets, and thus also improve