QuestionQ44

Switching

A customer needs two CX 6200F 48G switches connected to one another across a distance of 80 m/252 ft between wiring closets. The switches must retain capacity for VSF expansion with ring topology in each cabinet.

What is a valid configuration for a redundant link-aggregation port?

  • A Ports 1/1/1 and 1/1/2 for LAG
  • B Ports 1/1/49 and 1/1/50 with SFP28 for LAG
  • C Ports 1/1/51 and 1/1/52 with SFP+ for LAG
  • D Ports 1/1/47 and 1/1/48 for LAG
Explanation

On 48-port CX 6200F models, ports 49 and 50 are reserved for VSF auto-stacking. Using ports 51 and 52 for the redundant LAG preserves those VSF ports for future ring expansion. The CX 6200F supports SFP+ optical uplinks, and a 10G SFP+ SR optical transceiver supports distances exceeding 80 m when used with suitable multimode fiber.

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