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Networking Fundamentals · Intermediate

10GBASE-T

10 Gbps Ethernet over four-pair twisted-pair copper with RJ45 connectors, up to 100 m on Cat 6a.

Definition

10GBASE-T (802.3an) reaches 100 m on Cat 6a or Cat 7 and about 37-55 m on Cat 6. It consumes more power and adds more latency than SFP+ direct attach cables.

Example

A new server room is cabled with Cat 6a to support 10GBASE-T to every rack.

Exam tip

10 Gbps for 100 m on copper needs Cat 6a; Cat 6 is limited to about 55 m.

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