Understanding Interfaces | Junos OS (2024)

QFX3500 switch with a QFabric software package

There are 48 network access ports (10-Gigabit Ethernet) labeled0 through 47 on PIC 0 and, 16 network access ports labeled 0 through15 on PIC 1, and four 40-Gbps QSFP+ ports labeled Q0 through Q3 onPIC 2. You can use the QSFP+ ports to connect the Node device to Interconnectdevices.

By default, the 40-Gbps QSFP+ ports are configured to operateas 10-Gigabit Ethernet ports. You can use QSFP+ to four SFP+ copperbreakout cables to connect the 10-Gigabit Ethernet ports to otherservers, storage, and switches. Optionally, you can choose to configurethe QSFP+ ports as 40-Gigabit Ethernet ports (see Configuring the QSFP+ Port Type on QFX3500 StandaloneSwitches).

QFX3500 switch with Enhanced Layer 2 software

There are 48 network access ports labeled 0 through 47 on PIC0 and 4 40-Gbps QSFP+ ports labeled Q0 through Q3 on PIC 1. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

QFX3600 switch with a QFabric software package

There are 64 network access ports (10-Gigabit Ethernet) labeledQ0 through Q15 on PIC 0, and there are 16 network access ports (40-GigabitEthernet) labeled Q0 through Q15 on PIC 1.

By default, all the QSFP+ ports are configured to operate as40-Gigabit Ethernet ports. Optionally, you can choose to configurethe QSFP+ ports as 10-Gigabit Ethernet ports (see Configuring the Port Type on QFX3600 Standalone Switches) and use QSFP+ to four SFP+ copper breakout cables to connect the10-Gigabit Ethernet ports to other servers, storage, and switches.

QFX3600 Node device with a QFabric software package

PIC 0 can support up to 56 10-Gigabit Ethernet portslabeled Q2 through Q15, and PIC 1 can support up to 8 40-Gigabitdata plane uplink ports labeled Q0 through Q7, and up to 14 40-GigabitEthernet ports labeled Q2 through Q15.

On a QFX3600 Node device, by default, four 40-Gbps QSFP+ ports(labeled Q0 through Q3) are configured for uplink connections betweenyour Node device and your Interconnect devices, and twelve 40-GbpsQSFP+ ports (labeled Q4 through Q15) use QSFP+ to four SFP+ copperbreakout cables to support up to 48 10-Gigabit Ethernet ports forconnections to either endpoint systems (such as servers and storagedevices) or external networks. Optionally, you can choose to configurethe first eight ports (Q0 through Q7) for uplink connections betweenyour Node device and your Interconnect devices, and ports Q2 throughQ15 for 10-Gigabit Ethernet or 40-Gigabit Ethernet connections toeither endpoint systems or external networks (see Configuring the Port Type on QFX3600 Node Devices).

QFX3600 switch with Enhanced Layer 2 software

PIC 0 can support 64 network access ports (10-GigabitEthernet ports) labeled Q0 through Q15 and 16 40-Gigabit Ethernetports labeled Q0 through Q15. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

QFX5100-48S switch with Enhanced Layer 2 software

PIC 0 can support 48 network access ports (10-GigabitEthernet ports) labeled 0 through 47 and 6 40-Gbps QSFP+ ports labeled48 through 53. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

EX4600 switch with Enhanced Layer 2 software

PIC 0 can support 24 network access ports (10-GigabitEthernet ports) labeled 0 through 23 and 4 40-Gbps QSFP+ ports labeled24 through 27. There are two expansion bays (PIC 1 and PIC 2), andyou can insert QFX-EM-4Q expansion modules and EX4600-EM-8F expansionmodules. The QFX-EM-4Q expansion module provide 4 40-Gbps QSFP+ ports. TheEX4600-EM-8F expansion module provides 8 10-Gbps SFP+ ports. You caninsert any combination of expansion modules. For example, you caninsert two EX4600-EM-8F expansion modules, two QFX-EM-4Q expansionmodules, or one of each. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

QFX5100-48S switch with a QFabric software package

PIC 0 can support 48 network access ports (10-GigabitEthernet ports) labeled 0 through 47, and PIC 1 can support 6 40-GbpsQSFP+ ports labeled 0 through 5. See Configuringthe QSFP+ Port Type on QFX5100 Devices for informationon how to configure the port mode of 40-Gbps QSFP+ ports.

QFX5100-24Q switch with Enhanced Layer 2 software

PIC 0 can support 24 40-Gbps QSFP+ ports labeled 0through 23. PIC 1 and PIC 2 each support 4 40-Gbps QSFP+ port, fora total of eight 40-Gbps QSFP+ ports. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

Note:

You cannot channelize the 40-Gbps QSFP+ ports provided in thetwo QFX-EM-4Q expansion modules. Also, even though there is a totalof 128 physical ports, only 104 logical ports can be channelized.

You can configure different system modes to achieve varyinglevels of port density on the QFX5100-24Q and QFX5100-96S switches.Depending on the system mode you configure, there are restrictionson which ports you can channelize. If you channelize ports that arerestricted, the configuration is ignored. See Configuring the System Mode for informationon how to configure the system mode.

QFX5100-96S switch with Enhanced Layer 2 software

PIC 0 can support 96 10-Gigabit Ethernet ports labeled0 through 95, and 8 40-Gbps QSFP+ ports labeled 96 through 103. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

Note:

You can only channelize the 40-Gbps QSFP+ ports provided inports 96 and 100, because only 104 logical ports can be channelized.

You can configure different system modes to achieve varyinglevels of port density on the QFX5100-24Q and QFX5100-96S switches.Depending on the system mode you configure, there are restrictionson which ports you can channelize. If you channelize ports that arerestricted, the configuration is ignored. See Configuring the System Mode for informationon how to configure the system mode.

QFX5110-48S switch with Enhanced Layer 2 software

PIC 0 can support 48 10-Gigabit Ethernet ports labeled0 through 47, and 4 QSFP28 ports labeled 48 through 51. These dataports (0 through 47) support either 1-Gbps small form-factor pluggable(SFP) or 10-Gbps small form-factor pluggable plus (SFP+) transceivers.You can also use SFP+ DAC cables and 10-Gbps active optical cables(AOC) in any access port.The default 100-Gigabit Ethernet ports canbe configured as 40-Gigabit Ethernet, and in this configuration caneither operate as dedicated 40-Gigabit Ethernet ports or can be channelizedto 4 independent 10-Gigabit Ethernet ports using copper or fiber breakoutcables.

QFX5200-32C switch with Enhanced Layer 2 software

There is support for both quad small-form-factor pluggable (QSFP+) and 28-Gbps QSFP+ (QSFP28) transceivers in the 32 QSFP28 sockets. The QSFP28 ports are configured as 100-Gigabit Ethernet ports by default, but can also be configured to speeds of 50, 40, 25, or 10 Gigabit Ethernet.

The 100 Gigabit Ethernet ports can be channelized using breakout cables either to 2 independent downstream 50 Gigabit Ethernet or to 4 independent 25 Gigabit Ethernet ports. The default 100 Gigabit Ethernet ports can also be configured as 40 Gigabit Ethernet and in this configuration can either operate as dedicated 40 Gigabit Ethernet ports or can be channelized to 4 independent 10 Gigabit Ethernet ports using breakout cables. See Channelizing Interfaces on QFX5200-32C Switches for information on how to configure and channelize the interfaces.

QFX10002-36Q switch with Enhanced Layer 2 software

There are 36 quad small-form factor pluggable plus (QSFP+) portsthat support 40-Gigabit Ethernet optical transceivers. Out of these36 ports, 12 ports are QSFP28 capable, which are dual speed 40- or100-Gigabit Ethernet optical transceivers.

Each QSFP28 socket can be configured to support:

  • 100-Gigabit Ethernet using 28-Gbps QSFP28 optical transceivers.When a QSFP28 transceiver is inserted into the ports marked with afine black line underneath the socket and the port is configured for100-Gigabit Ethernet, the two adjacent ports are disabled and theQSFP28 is enabled for 100-Gigabit Ethernet.

  • 40-Gigabit Ethernet using QSFP+ optical transceivers.

  • 10-Gigabit Ethernet using breakout cables. When configuredfor channelization, a breakout cable converts the 40-Gigabit Ethernetport into 4 independent 10-Gigabit Ethernet ports.

    Any of the 36 ports 0 through 35 can be configured as eitheruplink or access ports. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

Each of the 12 QSFP28 ports support:

  • 100-Gigabit Ethernet QSFP28 transceivers

  • 40-Gigabit Ethernet QSFP+ transceivers

Each of the 36 QSFP+ ports support:

  • 40-Gigabit Ethernet QSFP+ transceivers

  • Access ports

QFX10002-72Q switch with Enhanced Layer 2 software

There are 72 quad small-form factor pluggable plus (QSFP+) portsthat support 40-Gigabit Ethernet optical transceivers. Out of these72 ports, 24 ports are QSFP28 capable, which are dual speed 40- or100-Gigabit Ethernet optical transceivers.

Each QSFP28 socket can be configured to support:

  • 100-Gigabit Ethernet using 28-Gbps QSFP28 optical transceivers.When a QSFP28 transceiver is inserted into the ports marked with afine black line underneath the socket and the port is configured for100-Gigabit Ethernet, the two adjacent ports are disabled and theQSFP28 is enabled for 100-Gigabit Ethernet.

  • 40-Gigabit Ethernet using QSFP+ optical transceivers.

  • 10-Gigabit Ethernet using breakout cables. When configuredfor channelization, a breakout cable converts the 40-Gigabit Ethernetport into 4 independent 10-Gigabit Ethernet ports.

    Any of the 72 ports 0 through 71 can be configured as eitheruplink or access ports. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

Each of the 24 QSFP28 ports support:

  • 100-Gigabit Ethernet QSFP28 transceivers

Each of the 72 QSFP+ ports support:

  • 40-Gigabit Ethernet QSFP+ transceivers

Each of the 36 QSFP+ ports support:

On a QFX10008 switch with Enhanced Layer 2 software, there aretwo line cards available:

QFX10008 with Line Card QFX10000-36Q (ELS)

QFX10000-36Q, a 36-port 40-Gigabit Ethernet quad small form-factorpluggable plus transceiver (QSFP+) or 12-port 100GbE QSFP28 line card

The QFX10000-36Q line cards supports

Each QSFP28 socket can be configured to support:

  • 100-Gigabit Ethernet using QSFP28 optical transceivers.When a QSFP28 transceiver is inserted into the ports marked with afine black line underneath the socket and the port is configured for100-Gigabit Ethernet, the two adjacent ports are disabled and theQSFP28 socket is enabled for 100-Gigabit Ethernet.

    • 40-Gigabit Ethernet using QSFP+ optical transceivers.

    • 10-Gigabit Ethernet using breakout cabling and attachedoptical transceivers. When configured for channelization, the systemconverts the 40-Gigabit Ethernet port into 4 independent 10-GigabitEthernet ports.

    Any of the 36 ports 0 through 35 can be configured as eitheruplink or access ports. See ChannelizingInterfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016,and EX4600 Switches for information on how to configureand channelize the 40-Gbps QSFP+ ports.

Each of the 12 QSFP28 ports supports:

  • 100-Gigabit Ethernet QSFP28 transceivers

  • 40-Gigabit Ethernet QSFP+ transceivers

Each of the 12 QSFP28 ports supports:

  • 100-Gigabit Ethernet QSFP28 transceivers

    • 40-Gigabit Ethernet QSFP+ transceivers

    Each of the 36 QSFP+ ports support:

    • 40-Gigabit Ethernet QSFP+ transceivers

    • Access ports

    • Uplink ports

QFX10008 with Line Card QFX10000-30C and QFX10000-30C-M (ELS)

QFX10000-30C and QFX10000-30C-M, a 30-port 100-Gigabit or 40-GigabitEthernet QSFP28 line card

  • The QFX10000-30C and QFX10000-30C-M line cards support:

    Thirty 28-Gbps QSFP+ Pluggable Solution (QSFP28) cages thatsupport either 40-Gigabit Ethernet or 100-Gigabit Ethernet opticaltransceivers. The QFX10000-30C and QFX10000-30C-M ports auto detectthe type of transceiver installed and set the configuration to theappropriate speed.

    Each QSFP28 socket can be configured to support:

    • 100-Gigabit Ethernet using QSFP28 optical transceivers.When a QSFP28 transceiver is inserted into the ports marked with afine black line underneath the socket and the port is configured for100-Gigabit Ethernet, the two adjacent ports are disabled and theQSFP28 socket is enabled for 100-Gigabit Ethernet.

    • 40-Gigabit Ethernet using QSFP+ optical transceivers.

    See Channelizing Interfaces on QFX3500, QFX3600, QFX5100,QFX10002, QFX10008, QFX10016, and EX4600 Switches forinformation on how to configure and channelize the 40-Gbps QSFP+ ports.

    Each of the 30 QSFP28 ports supports:

    • 100-Gigabit Ethernet QSFP28 transceivers

    • 40-Gigabit Ethernet QSFP+ transceivers

    • Access ports

    • Uplink ports

On a QFX10016 switch running Enhanced Layer 2 software, thereare 16 slots, which you can populate with two types line cards:

QFX10016 with Line Card QFX10000-36Q (ELS)

  • QFX10000-36Q, a 36-port 40-Gigabit Ethernet quad smallform-factor pluggable plus transceiver (QSFP+) or 12-port 100GbE QSFP28line card

    The QFX10000-36Q line card consists of 36 quad small form-factorpluggable plus (QSFP+) ports that support 40-Gigabit Ethernet opticaltransceivers. Out of these 36 ports, 12 ports are QSFP28 capable.The QSFP+ ports are dual speed and can support either 40-Gigabit or100-Gigabit Ethernet optical transceivers. The line card can support10-Gigabit Ethernet by channelizing the 40-Gigabit ports. Channelizationis supported on fiber break-out cable using standard structured cablingtechniques.

    With 100-Gigabit Ethernet using QSFP28 optical transceivers,when a QSFP28 transceiver is inserted into the ports marked with afine black line underneath the socket and the port is configured for100-Gigabit Ethernet, the two adjacent ports are disabled and theQSFP28 socket is enabled for 100-Gigabit Ethernet.

    You can use 40-Gigabit Ethernet using QSFP+ optical transceivers.

    With 10-Gigabit Ethernet using breakout cabling and attachedoptical transceivers, when configured for channelization, the systemconverts the 40-Gigabit Ethernet port into 4 independent 10-GigabitEthernet ports.

    Any of the 36 ports 0 through 35 can be configured as eitheruplink or access ports.

    Each of the 12 QSFP28 ports supports:

    • 100-Gigabit Ethernet QSFP28 transceivers

    • 40-Gigabit Ethernet QSFP+ transceivers

    Each of the 36 QSFP+ ports supports:

    • 40-Gigabit Ethernet QSFP+ transceivers

    • Access ports

      You can use 40-Gigabit Ethernet QSFP+ transceivers in any downstreamport.

    • Uplink ports

      You can configure all the QSFP+ ports as uplinks.

    Every second and sixth port in a 6XQSFP cage on a QFX10000-36Qsupports 100-Gigabit Ethernet using QSFP28 transceivers. These 100-GigabitEthernet ports work either as 100-Gigabit Ethernet or as 40-GigabitEthernet, but are recognized as 40-Gigabit Ethernet by default. Whena 40-Gigabit Ethernet transceiver is inserted into a 100-Gigabit Ethernetport, the port recognizes the 40-Gigabit Ethernet port speed. Whena 100-Gigabit Ethernet transceiver is inserted into the port and enabledin the CLI, the port recognizes the 100-Gigabit Ethernet speed anddisables two adjacent 40-Gigabit Ethernet ports. You can also usean 100-Gigabit Ethernet transceiver and run it at 40-Gigabit Ethernetby using the CLI to set the port speed to 40-Gigabit Ethernet.

    The 40-Gigabit Ethernet ports can operate independently, bechannelized into four 10-Gigabit Ethernet ports, or bundled with thenext two consecutive ports and channelized into twelve 10-GigabitEthernet ports as a port range. Only the first and fourth port ineach 6XQSFP cage are available to channelize a port range. The portrange must be configured using the set chassis fpc pic port channel-speedcommand. For example, to channelize the first switch port, use the set chassis fpc 0 pic 0port 1channel-speed 10g command.

QFX10016 with Line Card QFX10000-30C and QFX10000-30C-M (ELS)

QFX10000-30C and QFX10000-30C-M, a 30-port 100-Gigabit or 40-Gigabit Ethernet QSFP28 line card. The QFX10000-30C and QFX10000-30C-M ports auto detect the type of transceiver installed and set the configuration to the appropriate speed.

Each QSFP28 socket supports:

  • 100-Gigabit Ethernet using QSFP28 optical transceivers. When a QSFP28 transceiver is inserted into any of the ports, the QSFP28 socket is enabled for 100-Gigabit Ethernet.

  • 40-Gigabit Ethernet using QSFP+ optical transceivers. When a QSFP+ transceiver is inserted into any of the ports, the QSFP+ socket is enabled for 40-Gigabit.

    Any of the 30 ports 0 through 29 can be configured as either uplink or access ports, and of the 30 QSFP28 ports supports:

    • 100-Gigabit Ethernet QSFP28 transceivers

    • 40-Gigabit Ethernet QSFP+ transceivers

Understanding Interfaces | Junos OS (2024)
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