School of Specs 23.501v20.2.0

3GPP 23.501 v20.2.0 — the document's own text

K.2.2.3 Configuration for PTP port states

Taught in 22. Clocks, TSN and deterministic delivery (The 5G system architecture, in depth).

The PTP port states may be determined by NW-TT either via:

  • Method a), BMCA procedure.
  • Method b), local configuration.

When Method b) is used, the TSN AF or TSCTSF sets the defaultDS.externalPortConfigurationEnabled (per PTP instance) in UMIC to TRUE and sets the value of externalPortConfigurationPortDS.desiredState (per PTP port) in UMIC for each DS-TT port and in PMIC for each NW-TT port for the (g)PTP domain.