cubro network packet brokers

Network Packet Brokers (NPBs) are the middleman that guarantees that monitoring and security appliances have a comprehensive view of network traffic and that those tools are operating at peak efficiency. Cubro NPBs incorporate features like traffic aggregation, traffic replication, filtering, load-balancing, header-modification and more. More advanced network packet brokers also support Deep packet inspection (DPI) which is an advanced monitoring technique and a useful application for telcos

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See how Cubro's next-generation G5 Network Packet Brokers can accelerate digital transformation by increasing visibility and maximising investment in monitoring tools.

Check out the main functionalities and technical specifications of G5 Network Packet Brokers.

Network Packet Brokers (NPBs) are a critical component of a Network Visibility solution as they are responsible for ensuring that monitoring and security appliances receive the traffic needed to perform their role.

While a Network Packet Broker appears to look like a switch it is a quite different device in operation. The word “broker” in the name of these devices hints to their primary purpose and the functionality behind it. An NPB effectively brokers the traffic it receives out to connected monitoring and security tools. To this end it incorporates features like traffic aggregation, traffic replication, filtering, load-balancing, header-modification and more. Network Packet Brokers (also known as Ethernet switches) are more advanced devices and support 1G/10G, 40G and 100G network traffic.

It also focuses on not adversely affecting traffic either so that, unless otherwise directed, the network traffic is unmodified as it traverses the NPB. A Network Packet Broker is able to send traffic to only one tool or copy the same traffic to many tools (such as the traffic from a TAP). An NPB can also aggregate many data feeds together for output to one or more tools; necessary to ensure those tools get a complete picture of the network. NPBs can also groom traffic so that it can be provided to a tool.

Filtering rules isolate specific subsets of traffic that could be specifically required to a certain tool or, alternatively, are irrelevant and can be dropped reducing bandwidth and processing loads on tools. The vast majority of monitoring and security appliances are unable to process encapsulated traffic, thus, Network Packet Brokers are able to strip tunnel headers from packets so tools can process them. NPBs are the middleman that guarantees that monitoring and security appliances have a comprehensive view of network traffic and that those tools are operating at peak efficiency.


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  • Cubro Network Visibility
  • Ghegastraße 3, 1030 Vienna Austria
  • Tel.:+43 1 29826660
  • Fax: +43 1 2982666399
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