The cisco qsfp bidi transceiver addresses the challenges of fiber infrastructure by providing the capability to transmit full duplex 40 gbps traffic over one duplex mmf cable with lc connectors in another words the cisco qsfp bidi transceiver allows 40 connectivity to reuse the existing directly connecting 10 gbps fibers and the existing fiber trunk without the need to add any fibers the cisco qsfp bidi transceiver qsfp 40g sr bd is a short reach optical transceiver that delivers 40 gbps ove