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Simulating Network Latency?

Posted by Cliff on from the network-testbed-technology dept.

ixmo asks: "I've just come around an interesting problem: to simulate low-bandwidth network links without buying expensive WAN simulators, I can connect two old Cisco routers back to back with serial cables, and control the bandwidth via the 'clock rate' IOS command, but how can I simulate network latency? Is there some OS tool or patch (for Linux/OpenBSD) that allows for tuning of network delay? Any hints?"

1 of 76 comments (clear)

  1. FreeBSD Dummynet by Inominate · · Score: 3, Insightful

    FreeBSD's dummynet can quite easily do it. I suspect the same of openbsd and linux.

    What kind of question is this for ask slashdot?