Stacked QRadar Network Insights 1940 appliances
You can stack the QRadar Network Insights 1940 (type 6600) appliances to distribute network packets across multiple Napatech cards. Stacking the appliances can help you handle higher data volumes and inspect more traffic.
Each QRadar Network Insights 1940 appliance is configured with two Napatech cards. The port configuration on the first Napatech card changes, depending on whether the appliance is part of a stand-alone configuration or a stacked configuration.
- Stand-alone configuration
- In a stand-alone configuration, the two ports on the first Napatech card are configured to
accept inbound traffic from the network tap.
The second Napatech card is a load balancer that is configured internally. Do not use the ports on this card; if you use them, you do not get any data.
- Stacked configuration
- In a stacked configuration, the two ports on the first Napatech card are reconfigured so that one port is for inbound traffic and one port is for outbound traffic. The ports are configured so the data that comes in on port 0, and goes out on port 1.
Appliance cabling
The following image shows how to connect the cables on up to four QRadar Network Insights 1940 appliances in a stacked configuration. On the first appliance, port 0 is used for the network tap or span port. The traffic is then mirrored to Port 1 on the same card, which sends data to port 0 of the next appliance in the stack.
