configure network-clock gptp ports announce

configure network-clock gptp ports [port_list {only} | all] announce [initial-interval log_2_interval | receipt-timeout timeout_count]

Description

Configures gPTP Announce parameters on the specified ports. Announce messages are used to elect the grandmaster clock and determine the time-synchronous spanning tree.

Syntax Description

port_list Specifies one or more of the switch's physical ports.
only Apply change only to specified port, even if port is master of a load sharing group.
all Specifies all of the switch's physical ports.
log_2_interval The interval between Announce messages used by the switch on the port when the port is initialized or when the switch receives a message interval request TLV with announceInterval value 126. This value is in log 2 seconds. The valid range of values is -3 (2-3 = 0.125 seconds) to 17 (217 = 131072 seconds).
timeout_count On a gPTP slave port, the number of announce intervals to wait without receiving an Announce message before assuming the master is no longer sending Announce messages.

Default

Usage Guidelines

Use this command to configure gPTP Announce parameters on the specified ports. Announce messages are used to elect the grandmaster clock and determine the time-synchronous spanning tree. Announce selects the grandmaster in the network and establishes the tree from the grandmaster to all other time-aware systems in the network.

initial-interval corresponds to 802.1AS parameter initialLogAnnounceInterval.

receipt-timeout corresponds to 802.1AS parameter announceReceiptTimeout.

Example

# configure network-clock gptp ports 1-2 announce initial-interval 127
# configure network-clock gptp ports all announce receipt-timeout 5 

History

This command was first available in ExtremeXOS 15.3.

Platform Availability

This command is available on platforms that support the AVB feature pack license and have it installed. For complete information about software licensing, including how to obtain and upgrade your license, and which platforms support the AVB feature, see the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.