D-Link DGS-3620-28TC-SI Product Manual - Page 159

xStack® DGS-3620 Series Managed Switch Web UI Reference Guide range is from 0 to 255. Zero indicates the highest precedence. Click the Apply button to accept the changes made. PTP Boundary Port Settings This window is used to configure the attributes of the PTP boundary clock. The configuration takes effect when the PTP device is a boundary type. To view this window, click L2 Features > PTP > PTP Boundary Port Settings, as shown below: Figure 4-121 PTP Boundary Port Settings window The fields that can be configured are described below: Parameter Description Unit From Port / To Port Announce Interval (1-16) Announce Receipt Timeout (2-10) Delay Mechanism Select a unit you want to configure. Select the port range to use for this configuration. Click the radio button and enter the mean time interval between successive announce messages. Referred to as the announce interval. In line with the IEEE1588 protocol, the value of the announce interval is represented as the logarithm to the base 2 of this time measured in seconds. The entered value should be 1, 2, 4, 8, or 16. If entered an invalid number, it will be automatically adjusted to allow the bigger and closest value. The default value is 2 seconds. Click the radio button and enter the announce interval number that has to pass without receiving an Announce message before the occurrence of the ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES event. This value multiplied by the announce interval value is equal to the interval time of the announce receipt timeout. The range is from 2 to 10. Use the drop-down menu to specify the mechanism for measuring the propagation 149