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300-370 · Question #44

Which ports require unrestricted port access for CleanAir RF spectrum analysis between the AP and Cisco Spectrum Expert?

The correct answer is D. TCP 37540 and 37550. For Cisco CleanAir RF spectrum analysis, the Cisco Spectrum Expert application requires unrestricted TCP port access on ports 37540 and 37550 to communicate with APs.

WLAN Troubleshooting Methods

Question

Which ports require unrestricted port access for CleanAir RF spectrum analysis between the AP and Cisco Spectrum Expert?

Options

  • AUDP 5246 and 5247
  • BUDP 37540 and 37550
  • CTCP 16113 and 16114
  • DTCP 37540 and 37550
  • ETCP 5246 and 5247
  • FUDP 16113and 16114

How the community answered

(60 responses)
  • A
    2% (1)
  • C
    3% (2)
  • D
    87% (52)
  • E
    2% (1)
  • F
    7% (4)

Why each option

For Cisco CleanAir RF spectrum analysis, the Cisco Spectrum Expert application requires unrestricted TCP port access on ports 37540 and 37550 to communicate with APs.

AUDP 5246 and 5247

UDP 5246 and 5247 are used for CAPWAP data and control planes respectively, not for CleanAir spectrum analysis communication.

BUDP 37540 and 37550

UDP 37540 and 37550 are incorrect because CleanAir communication for Spectrum Expert utilizes TCP, not UDP, for these specific port numbers.

CTCP 16113 and 16114

TCP 16113 and 16114 are not the standard TCP ports designated for Cisco CleanAir Spectrum Expert communication with access points.

DTCP 37540 and 37550Correct

Cisco CleanAir technology relies on the Cisco Spectrum Expert application communicating with access points to collect RF spectrum data. This communication specifically uses TCP ports 37540 and 37550 to establish and maintain the data stream for real-time spectrum analysis, therefore these ports must be open and unrestricted for proper operation.

ETCP 5246 and 5247

TCP 5246 and 5247 are incorrect; although they are TCP, they are not the ports used for CleanAir spectrum analysis data transfer.

FUDP 16113and 16114

UDP 16113 and 16114 are incorrect because CleanAir communication for Spectrum Expert requires TCP, and these port numbers do not correspond to the CleanAir service.

Concept tested: Cisco CleanAir Spectrum Expert port requirements

Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/b_cg85_chapter_01000010.html

Topics

#CleanAir#Spectrum analysis#Network ports#Cisco Spectrum Expert

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