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speed (Ethernet)

Syntax (ACX Series, EX Series, MX Series)

Syntax (ACX5448, ACX710)

Syntax (ACX5448-D)

Syntax (ACX7100)

Syntax (EX Series)

Syntax (EX2300)

Syntax (EX4300)

Syntax (EX4600, OCX1100, QFX Series)

Syntax (QFX5100-48T)

Syntax (QFX5130-32CD)

Hierarchy Level (ACX Series, EX Series, MX Series)

Hierarchy Level (EX Series)

Hierarchy Level (ACX5448, ACX5448-D, ACX710, ACX7100, EX2300, EX4300, EX4600, OCX Series, QFX Series, QFX5100-48T, QFX5130-32CD)

Description

Configure the interface speed. This statement applies to the following interfaces:

  • Management Ethernet interface (fxp0 or em0)

  • Fast Ethernet 12-port and 48-port PICs

  • Built-in Fast Ethernet port on the FIC (M7i router)

  • Combo Line Rate DPCs and Tri-Rate Ethernet Copper interfaces on MX Series routers

  • Gigabit Ethernet interfaces on EX Series switches

If you enable autonegotiation, then the device automatically negotiates the speed based on the speed of the other end of the link. Table 1 describes the autonegotiation option available for different platforms:

Table 1: Autonegotiation Options

Autonegotiation Option

Description

auto-negotiation

Automatically negotiate the speed based on the speed of the other end of the link.

auto

Automatically negotiate the speed (10 Mbps, 100 Mbps, or 1 Gbps) based on the speed of the other end of the link.

auto-10m-100m

Automatically negotiate the speed (10 Mbps or 100 Mbps) based on the speed of the other end of the link.

See Speed and Autonegotiation for more details.

Options

Routers support autonegotiation by default. To enable or disable autonegotiation, see autonegotiation (Routers). Table 2 summarizes the speed and autonegotiation supported on different routing platforms:

Table 2: Speed and Autonegotiation support on Routers

Router

Speed

Autonegotiation Supported (Yes/No) ?

ACX Series

  • 10M

  • 100M

  • 1G

  • 2.5G

  • 5G

  • 10G

  • auto

  • auto-10m-100m

Yes

ACX5448, ACX710

  • 10G

  • 25G

  • 40G

  • 100G

  • 100M

  • 1G

  • auto

Yes

ACX5448-D

  • 10G

  • 25G

  • 40G

  • 100G

  • 1G

  • auto

Yes

ACX7100

  • 10G

  • 25G

  • 40G

  • 100G

  • 200G

  • 400G

No

MX Series

  • 10M

  • 100M

  • 1G

  • 2.5G

  • 5G

  • 10G

  • auto

  • auto-10m-100m

Yes

Switches support autonegotiation by default. To enable or disable autonegotiation, see auto-negotiation (Switches). Table 3 summarizes the speed and autonegotiation supported on different switching platforms:

Table 3: Speed and Autonegotiation support on Switches

Switch

Speed

Autonegotiation Supported (Yes/No) ?

EX Series

  • 10M

  • 100M

  • 1G

  • 2.5G

  • 5G

  • 10G

  • auto

  • auto-10m-100m

Yes

EX2300-48MP and EX2300-24MP

  • 10M — supported on EX series switches and only on ge interfaces of EX2300MP switch.

  • 100M

  • 1G

  • 2.5G — supported only on mge interfaces of E2300MP switch.

Yes

EX4300-48MP (EX-UM-4SFPP-MR)

  • 10M — supported only on ge interfaces.

  • 100M — supported on ge and mge interfaces.

  • 1G — supported on ge, mge interfaces, and 4-port 1-Gigabit Ethernet/10-Gigabit Ethernet uplink module on EX4300-48MP switches. The 1-Gbps speed is supported on the 4-port 1-Gigabit Ethernet/10-Gigabit Ethernet uplink module of EX4300-48MP switches from Junos OS Release 19.1R1 onwards.

  • 2.5G — supported only on mge interfaces.

  • 5G — supported only on mge interfaces.

  • 10G — supported on mge interfaces and 4-port 1-Gigabit Ethernet/10-Gigabit Ethernet uplink module on EX4300-48MP switches.

See Speed and Autonegotiation.

Yes

EX4600-40F (connected with JNP-SFPP-10GE-T transceiver)

  • 100M — supported only on mge interfaces.

  • 1G

  • 10G

For more information, see Autonegotiation support for EX4600-40F, QFX5110-48S and QFX5100-48S with JNP-SFPP-10GE-T transceiver.

Yes

OCX1100, QFX Series, QFabric

  • 100M

  • 1G

  • 10G

No

QFX5100-48T

  • 100M

  • 1G

  • 10G

  • auto

For more information, see Configure Speed and Autonegotiation on QFX5100-48T Switches.

Yes

QFX5110-48S (connected with QFX-SFP-1GE-T transceiver)

  • 100M

  • 1G

  • 10G

  • 40G

  • 100G

  • auto

Yes

QFX5110-48S and QFX5100-48S (connected with JNP-SFPP-10GE-T transceiver)

  • 100M

  • 1G

  • 10G

For more information, see Autonegotiation support for EX4600-40F, QFX5110-48S and QFX5100-48S with JNP-SFPP-10GE-T transceiver.

Yes

QFX5120-48Y (connected with JNP-SFPP-10GE-T transceiver)

  • 1G

  • 10G

For more information, see Autonegotiation support for QFX5120-48Y with JNP-SFPP-10GE-T transceiver.

No

QFX5130-32CD

  • 400G

  • 100G

  • 40G

  • 25G

  • 10G

For more information, see Channelizing Interfaces on QFX5200-32C Switches.

No

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 9.0 for EX Series switches.

Statement introduced in Junos OS Release 11.1 for the QFX Series.

Statement introduced in Junos OS Release 12.2 for ACX Series Universal Metro Routers.

Statement introduced in Junos OS Release 13.2X50-D10 for EX Series switches.

Speed option 2.5Gbps introduced in Junos OS Release 18.1R2 for EX2300 switch.

Speed option 10Gbps and 5Gbps introduced in Junos OS Release 18.2R1 for EX4300 switch.

Speed option 1-Gbps is introduced in Junos OS Release 19.1R1 on the 4-port 1-Gigabit Ethernet/10-Gigabit Ethernet uplink module on EX4300-48MP switches.

Speed options 100-Mbps, 1-Gbps, and auto is introduced in Junos OS Releases 18.4R1S2, 18.4R2, and 19.2R1 and later for ACX5448 Universal Metro Routers.

Speed option 10Gbps, 40Gbps, and 100Gbps introduced in Junos OS Evolved Release 19.1R1 for PTX10003-80C, PTX10003-160C routers.

Speed options 100-Gbps, 40-Gbps, 25-Gbps, and 10-Gbps introduced in Junos OS Release 19.2R1-S1 for ACX5448-D routers.

Related Documentation