While we keep hearing about networks migrating to 40G or 100G, it's important to note that many networks still consist of 1 Gigabit copper. Of course, these networks still require reliable traffic visibility. Copper Network TAPs are the best method to ensure reliable network visibility as they will neither affect production traffic nor become a point of failure in the network.
When tapping gigabit copper links, it’s important to know the network utilization in both directions of the link. If the speeds are less than 500 Mbps in each direction, then an Aggregation TAP can be used to produce a single monitor link per tapped network link. However, if the combined network speed of each direction of traffic is greater than 1 Gbps, then a Breakout TAP will be needed to ensure the monitor ports are not oversubscribed.
Breakout TAPs will provide 100% full packet capture at the cost of requiring an additional monitoring port: two monitor links are generated per tapped network link.
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If multiple copper network links are tapped, many monitor links could potentially be generated. At this point, there are two options on how to handle the monitor links: connect each monitor link directly into the network monitoring or security tool or send the monitor links into a Network Packet Broker that can reduce the number of connections needed to get the data to the tool.
If the network tool you are using has a massive quantity of ports to support each monitor link, then you’re golden. Unfortunately, most network tools do not have many ports available to receive copies of incoming traffic. If you’re using a tool with a limited number of ports, then a Network Packet Broker can accommodate your needs by reducing the amount of monitor links to a number that is more manageable for the network tool.
There are many options for Network Packet Brokers and the needs of your network should be taken into consideration when making your choice. 1G Copper Network Packet Brokers often come with 10Gb open SFP+ ports to provide modularity for 1 to 10Gb connections of either copper or fiber. Reminder: the appropriate transceivers will need to be purchased for each 10G SFP+ port.
Garland Technology’s AA1G52ACv2 is a 1 Gigabit Network Packet Broker tailored for copper networks. The AA1G52ACv2 has built-in 10/100/1000M (1G) RJ45 copper ports, allowing copper monitor links to be directly terminated into the Aggregator without the need of an additional transceiver. The four additional 10G open SFP+ cages on the AA1G52ACv2 provide the means to aggregate multiple 1G ports together into a single monitor link that can be sent to a network tool.
Garland Technology’s AF1G52AC is 1 Gigabit Network Packet Broker also engineered for copper networks with built-in 10/100/1000M (1G) RJ45 copper ports and four additional 10G open SFP+ cages.
All of Garland Technology’s Network Packet Brokers share the following benefits:
- No subscription, port, or feature fees
- Support MSA-compliant transceivers
- Easy to use configuration interface
Looking to add Network Packet Broker to your copper network, but not sure where to start? Join us for a brief network Design-IT consultation or demo. No obligation - it’s what we love to do!