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lane

Syntax

Hierarchy Level

Description

Configure the optical module parameters of QSFP (Quad Small Form-Factor Pluggable) modules for a specific media lane number. The following QSFP modules are supported:

  • QSFP+ : 4 host lanes, supports 10g per lane, total bandwidth of 40g

  • QSFP28 : 4 host lanes, supports 25g per lane, total bandwidth of 100g

  • QSFP56 : 4 host lanes, supports 50g per lane, total bandwidth of 200g

  • QSFP28-DD : 8 host lanes, supports 25g per lane, total bandwidth of 200g

  • QSFP56-DD : 8 host lanes, supports 50g per lane, total bandwidth of 400g

The following specifications standardize how the host device interacts with the QSFP optical modules:

  • The 4-lane QSFP modules adhere to SFF-8636 management interface specification.

  • The 8-lane QSFP-DD modules adhere to CMIS (Common Management Interface Specification).

You can configure optical module parameters for QSFP28 and QSFP28-DD optical modules for Juniper qualified optics as well as third-party optics from Junos OS. You cannot configure optical module parameters for QSFP copper DAC (direct attach cables) or QSFP load modules.

Options

lane-number

Specifies the media lane number.

  • Range: 0 through 7
rx-cdr Controls receive clock and data recovery block of the optics.

  • Off—Receive clock and data recovery is disabled.

  • On—Receive clock and data recovery is enabled.
rx-output Controls receive output from the optics towards the host device.

  • Off—Receive output for optics is disabled.

  • On—Receive output for optics is enabled.

rx-output-amplitude Controls the amplitude of receive output for which equalization is to be applied.

  • 1200mV—No equalization for 600mV - 1200mV amplitude.

  • 400mV—No equalization for 100mV - 400mV amplitude.

  • 600mV—No equalization for 300mV - 600mV amplitude.

  • 800mV—No equalization for 400mV - 800mV amplitude.

rx-output-emphasis Equalization value (in dB) for receive output signal of the optics.

  • Range: 0 through 10
rx-rate-select Controls baud rate for receive output signal.

  • Range: 0 through 3
rx-squelch Squelch the receive output signal of optics.

  • Off—Receive output signal for the optics is disabled.

  • On—Receive output signal for the optics is enabled.
tx-cdr Controls transmit clock and data recovery block of the optics.

  • Off—Transmit clock and data recovery is disabled.

  • On—Transmit clock and data recovery is enabled.
tx-input-equalization-adaptive Controls adaptive equalization for optics transmit input.

  • Off—Adaptive equalization is disabled.

  • On—Adaptive equalization is enabled.
tx-input-equalization-manual Equalization value (in dB) for optics transmit input.

  • Range: 0 through 15
tx-laser Controls transmit laser block of the optics.

  • Off—Transmit laser is disabled.

  • On—Transmit laser is enabled.
tx-rate-select Controls baud rate for transmit input signal.

  • Range: 0 through 3
tx-squelch Squelch the transmit input signal of the optics.

  • Off—Transmit input signal for the optics is disabled.

  • On—Transmit input signal for the optics is enabled.

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Evolved Release 21.1R1.

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