Patent ID: 7760656
Filing Date: 2010-07-20
Classification: H04L

Abstract:
1. A network testing system comprising: a device under test (DUT) having a first traffic capacity, wherein the DUT is comprised of an intrusion prevention system or a session border controller; a test tool generating test packets provided to the DUT as source traffic, and receiving the test packets back from the DUT as destination traffic, wherein the test tool has a second traffic capacity less than the first traffic capacity; and at least two external routers receiving the test packets from the DUT and forwarding the test packets back to the DUT; wherein the DUT has at least three pairs of DUT interfaces and at least three virtual routers, wherein a first pair of DUT interfaces is coupled to the test tool, a second pair of DUT interfaces is coupled to a first external router, and a third pair of DUT interfaces is coupled to a second external router, wherein the DUT has a first virtual router with a first routing table configured to direct test packets received on one of the interfaces in the first pair of DUT interfaces to the first external router, wherein the DUT has a second virtual router with a second routing table configured to direct test packets received on one of the interfaces in the second pair of DUT interfaces to the second external router, and wherein the DUT has a third virtual router with a third routing table configured to direct test packets received on one of the interfaces in the third pair of DUT interfaces to the test tool; whereby test packets output by the test tool traverse the DUT more than twice before returning to the test tool.