Date Added: Jul 2006
In the SQoS network as introduced in and, the border router in every Autonomous System (AS) provides customized security mechanisms to the incoming packets. Some serious problems have been recently raised particularly when there are one or more compromised routers that attempt to modify, delete, or fabricate any part or the whole packet into the SQoS network. The compromised router can either passively or actively perform the malicious activities against the forwarding packets. The SQoS network does not explicitly specify the method to detect whether the data contained in the packets have been abused by the compromised routers or by the end host itself.