This site covers Linux networking specific topics. It does not cover general networking questions, these are covered under the more general Wikipedia Computer Networks. See the External Links section for other useful resources.
Device Performance Enhancements
Short list of conferences with Linux networking related attendees:
In the "Delaying only some traffic" section of this page, the following code is given as an example of how to create a delay to just one ip address:
Page based on Documentation/networking/ip-sysctl.txt.