What’s LLD?

Link Loss Detection is an important feature for network Tap devices with copper ports that it relays transparent link information to the network ports. If a device connected to port A fails or a link is disabled by a network component for any reason, the LLD function shuts down the link to port B, ensuring that HA connections continue to work.

If port B didn’t know the link had been deactivated, then its connection would still be active and network routes and HA protocols wouldn’t work properly.

What’s aggregation?

Aggregation is interconnection or network data packets bundled together from either a single full-duplex link (TX & RX) or from multiple links. Aggregation allows a single network interface to analyse and evaluate the full-duplex data from one or more data links. The aggregation device receives data from the corresponding lines, adds it together in the correct order and sends the packets to one or more ports.


What’s fail-safe?

Since network Taps are usually installed in critical network lines, it’s important to ensure that Taps don’t affect the line in any way. Using fail-safe, when there’s a failure or an arbitrary deactivation, the Tap acts as a cable bridge and ensures that the active network connection isn’t interrupted or at least continues to function without the Tap so the active line isn’t adversely affected.


Are physical errors (CRC) passed on to the monitoring tools?

These important errors are sent on for analysis for all products on the output ports.

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