MTP/MPO Tap for 40/100 Gbit (with 4 fibers) optical Taps
The challenge of tapping a 40 Gbit /100 Gbit multimode link based on a QSFP connector is that the QSFP is defined as a quad channel interface (Q – quad) which means we have 4 x 10 Gbit. But these 4 x 10 Gbit are in a kind of trunk that means an Ethernet packet is split into 4 chunks and sent in parallel over the 4 fiber links.
A special layer 1 protocol takes care that the receiver knows which fiber is which, so that the receivers can reassemble the packet in the right way.
The Cubro MTO/MTP TAP is connected over MTP connectors (8 fibers) with the QSFP, the output is also MTP which is connected to the input of the Packetmaster 484. The special features of the Packetmaster 484 help to reassemble the QSFP traffic.