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ImageStream: Who Needs to Read Encrypted Traffic?

Nov 14, 2008, 20:03 (1 Talkback[s])
(Other stories by Alex Goldman)

"PUFQ depends on LinuxIMQ. "Linux IMQ is a virtual network device that can be used to queue packets" says Utter. "First, the PUFQ methodology classifies high-priority traffic using IP tables, and marks each packet so later stages will know how to properly prioritize each packet. Then the traffic is redirected to the PUFQ and non-PUFQ paths based on the rule set for IP blocks or other parameters."

""The PUFQ path splits the traffic into separate rate-limited queues for each user," says Utter. "Then the packets are forwarded through a high priority or low priority queues based on the priority mark. The packets return to the normal routing path until they are ready to be forwarded. Then on the exit path, PUFQ traffic is separated into high and low priority queues again. It is at this point where the high and low priority traffic can be rate limited on an aggregate basis if needed."

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