| 摘要 |
A network switch apparatus includes a network switch housing, a first network port, a second network port, a first instrument port configured to communicate with a monitoring tool, wherein the first instrument port comprises a first power over Ethernet port configured to receive power, a transformer coupled to the first instrument port, and an active component inside the network switch housing, wherein the active component is configured to receive packets from the first network port, and pass at least some of the packets from the first network port to the first instrument port.
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