INLINE and SPAN Network TAP Aggregators also Aggregation TAP in Data Center
1. What is Network TAP?
Network TAP(Terminal Access Point) represents a system that monitors events on the local network to help an administrator (or attacker) analyze the network.Tap itself is often a dedicated hardware device that provides a way to access data flowing through a computer network.In many cases, a third party is needed to monitor the communication between two points in the network.If the network between A and B consists of physical cables, "network listening" may be the best way to accomplish this monitoring.Network tap has (at least) three ports: port A, port B, and monitor port.A tap is inserted between A and B to pass through all traffic (sending and receiving data streams) in real time, unobstructed, and the same data can be copied to its monitor port so that third parties can listen.Network listening is commonly used for network intrusion detection systems, VoIP records, network detectors, RMON detectors, packet sniffers, and other monitoring and collection devices and software that require access to network segments.Taps are used for secure applications because they are not sudden, undetectable on the network (no physical or logical address), can handle full duplex and non-shared networks, and will often pass through or bypass traffic, even if the tap stops working or loses power.
Network TAP Advantages
- Here are some advantages of a Network TAP over port mirroring or SPAN:
- Passive; fail-safe
- Zero configuration
- Secure
- Exact duplicate of network traffic
- No added latency or altered timing
- Passes network errors in addition to good frames/packets
- Oversubscription not an issue
2. What is SAPN?
SPAN(Switch Port Analysis) is also known as mirror Port. Advanced switches can copy packets from one or more ports to a specified Port, which is called "mirror Port" or "destination Port". Analyzer can receive data from the mirror Port.However, this feature can affect the performance of the switch and cause packet loss when the data is overloaded.
The Advantage of the SPAN
1. Economical, no additional equipment required.
2, can simultaneously monitor a switch on a VLAN all the traffic.
3. One analyzer can monitor multiple links.
3. The Network TAP Typical Application
Data Center Of Area:
Telecom,
Broadcasting,
Government,
Finance,
Energy,
Power,
Petroleum,
Hospital,
School,
Enterprise
And Other Industries
3. Network TAP Specifications:
| NetTAP® Network Packet Broker (NPB/TAP) | I Type | S Type |
| Interface Type | Network Port | GE Port(A/B) | GE Port (GE0-GE4) |
| Monitor Port | GE Port(A/B/AB) |
| Function | Max Ports | 5 ports | 5 ports |
| Traffic Replication | Support 1->4 | Support 1 -> 4 |
| Traffic Max Speed | 1G | 1G |
| Aggregation TX/RX | Support | - |
| Monitor TX/RX | Support | - |
| Bypass TX/RX | Support | - |
| Electric | Power Supply | 12V-DC |
| Frequency | - |
| Current | 1A |
| Power | <10W |
| Environments | Work Temperature | 0－50℃ |
| Storage Temperature | -20-70℃ |
| Work Humidity | 10%-95%,No Condensation |
| Size | L(mm)*W(mm)*H(mm) | 180mm*140mm*35mm |
NT-iTAP-5GS Intelligent Network TAP Datasheet.pdf
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