BiDi Optics Considerations

There are several nuances to consider due to the complexity in 40Gb BiDi technology.

Because of the nature of 40Gb BiDi technology, the same BiDi optic (Full Duplex or RX-only) cannot be used in all of the following situations. For example:

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On SPAN sessions, RX-only BiDi optics cannot be used. Full Duplex BiDi optics must be used.

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When receiving traffic from network links, RX-only BiDi optics must be used due to the way traffic is multiplexed over the fiber pair in 40Gb BiDi technology.

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When deploying over inline 40Gb BiDi links, Full Duplex BiDi optics must be used.

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When connecting two GigaVUE nodes through a cascade connection, Full Duplex BiDi optics must be used for the tool port. The network port may be either Full Duplex or RX-only BiDi optics.

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When stacking multiple GigaVUE nodes, 40Gb BiDi optics must not be used on stack links because the 40Gb BiDi technology is not compatible with the Gigamon stack protocol.