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hardware-assisted-timestamping

Syntax

Hierarchy Level

Release Information

Statement introduced in JUNOS Release 9.5.

Description

For Ethernet interfaces on Enhanced and Enhanced Queuing Dense Port Concentrators (DPCs) in MX Series routers only, enable hardware-assisted timestamping support for Ethernet frame delay measurement.

By default, the ETH-DM feature calculates frame delays using software-based timestamping of the ETH-DM PDU frames sent and received by the MEPs in the session. As an option that can increase the accuracy of ETH-DM calculations when the DPC is loaded with heavy traffic in the receive direction, you can enable hardware-assisted timestamping of session frames in the receive direction.

Usage Guidelines

See Ethernet Frame Delay Measurements Overview, Guidelines for Configuring Routers to Support an ETH-DM Session, and Enabling the Hardware-Assisted Timestamping Option.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.