What happens when JOINT-2 performance is exceeded

Hello

We have JOINT-2 with about 20 pairs of vlan inline in the test environment. What happens to online traffic ourselves, said a flow of 500 Mbps? Falls of traffic or is it transmitted without IPS inspection.

If you exceed the capacity of the sensor monitoring, then the packets that cannot be monitored will be abandoned by the sensor.

NOTE: 500Mbps isn't a number of absolute performance for the sensor. It's a level of performance that the sensor has been testeed to be able to manage for certain types of traffic used in the performance test. We don't know exactly how much traffic the sensor will be able to manage to your network. The JOINT-2 will probably handle around 500 Mbps is a lot and even most customer networks. However, the networks vary, and in some networks, it can handle quite a bit less traffic and other networks can handle even more.

So the question is not what will happen if you send more than 500 Mbps, but rather what will happen if you send more traffic than what the sensor is able to monitor. And the answer is that all traffic that cannot be monitored because of the limitations of performance will be dropped by the sensor.

The only time where the packets are forwarded without inspection is if sensorApp has ceased to monitor all packets (a reconfiguration or an upgrade is in progress, or the process of sensorApp crashed) AND the functionality of the software workaround August kicks. Which case all packets will be forwarded without analysis.

Tags: Cisco Security

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