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Configuring the Port Type on QFX3600 Node Devices

 

The QFX3600 Node device provides 16 40-Gbps QSFP+ ports. By default, four ports (labeled Q0 through Q3) operate as 40-gigabit data plane (fte) uplink ports for uplink connections between your Node device and your Interconnect devices. Twelve ports (labeled Q4 through Q15) operate as 10-Gigabit Ethernet (xe) ports to support 48 10-Gigabit Ethernet interfaces for connections to either endpoint systems or external networks. Optionally, you can choose to configure ports Q0 through Q7 to operate as 40-gigabit data plane uplink ports, and ports Q2 through Q15 to operate as 10-Gigabit Ethernet or 40-Gigabit Ethernet (xle) ports.

Note

You can use QSFP+ to four SFP+ breakout cables or QSFP+ transceivers with fiber breakout cables to connect the 10-Gigabit Ethernet ports to other devices.

Note

When you delete the port type configuration for an individual port or a block of ports, the ports return to operating in their default port type. For example, when you delete the 40-Gigabit Ethernet (xle) port configuration for port Q4, the port returns to operating as a 10-Gigabit Ethernet (xe) port.

Note

When the 40-Gigabit Ethernet (xle) ports of a QFX3600 Node device carry traffic at the full line rate, loss of untagged Layer 2 or Layer 3 traffic going across the fabric might occur, as well as increased latency on the Node device. Such effects result from the addition of a 4-byte header to packets traversing the uplink ports on the Node device. The percentage of traffic loss depends on the size of the packets: the greater the packet size, the lower the traffic loss and vice versa. This problem does not affect tagged traffic.

This topic explains how to configure the port type on QFX3600 Node devices.

Before you configure the port type on QFX3600 Node devices:

  • Make sure your QFabric system is operational.

  • Issue the show fabric administration inventory node-groups command to display the existing Node groups and the Node devices in each Node group.

Note
  • Only ports Q0 through Q7 can be configured to operate as 40-gigabit data plane (fte) uplink ports.

  • Only ports Q2 through Q15 can be configured to operate as 10-Gigabit Ethernet (xe) or 40-Gigabit Ethernet (xle) ports.

Caution

The Packet Forwarding Engine on the QFX3600 Node device is restarted when you commit the port type configuration changes. As a result, you might experience packet loss on the Node device.

The following message may be displayed in the system log file when the Packet Forwarding Engine is restarted. You can ignore this message.

Pipe write error: Broken pipe

flush operation failed

The following steps describe how to configure either a block of ports or an individual port to operate as 40-gigabit data plane uplink (fte) ports, as well as how to delete a 40-gigabit data plane uplink (fte) port configuration.

  1. To configure a block of ports to operate as 40-gigabit data plane uplink (fte) ports, specify a port range:

    For example, to configure ports Q4 through Q7 to operate as 40-gigabit data plane uplink ports:

  2. To configure an individual port to operate as a 40-gigabit data plane uplink (fte) port, specify a port number:

    For example, to configure port Q4 to operate as a 40-gigabit data plane uplink port:

  3. Review your configuration and issue the commit command.
  4. To delete the 40-gigabit data plane uplink (fte) port configuration for a block of ports, specify a port range:

    For example, to delete the 40-gigabit data plane uplink port configuration for ports Q4 through Q7:

  5. To delete the 40-gigabit data plane uplink (fte) port configuration for an individual port, specify a port number:

    For example, to delete the 40-gigabit data plane uplink port configuration for port Q4:

The following steps describe how to configure either a block of ports or an individual port to operate as 10-Gigabit Ethernet (xe) ports, as well as how to delete a 10-Gigabit Ethernet (xe) port configuration.

  1. To configure a block of ports to operate as 10-Gigabit Ethernet (xe) ports, specify a port range:

    For example, to configure ports Q4 through Q7 to operate as 10-Gigabit Ethernet ports:

  2. To configure an individual port to operate as a 10-Gigabit Ethernet port, specify a port number:

    For example, to configure port Q4 to operate as a 10-Gigabit Ethernet port:

  3. Review your configuration and issue the commit command.
  4. To delete the 10-Gigabit Ethernet (xe) port configuration for a block of ports, specify a port range:

    For example, to delete the 10-Gigabit Ethernet port configuration for ports Q4 through Q7:

  5. To delete the 10-Gigabit Ethernet (xe) port configuration for an individual port, specify a port number:

    For example, to delete the 10-Gigabit Ethernet port configuration for port Q4:

The following steps describe how to configure either a block of ports or an individual port to operate as 40-Gigabit Ethernet (xle) ports, as well as how to delete a 40-Gigabit Ethernet (xle) port configuration.

  1. To configure a block of ports to operate as 40-Gigabit Ethernet (xle) ports, specify a port range:

    For example, to configure ports Q4 through Q7 to operate as 40-Gigabit Ethernet ports:

  2. To configure an individual port to operate as a 40-Gigabit Ethernet (xle) port, specify a port number:

    For example, to configure port Q4 to operate as a 40-Gigabit Ethernet port:

  3. Review your configuration and issue the commit command.
  4. To delete the 40-Gigabit Ethernet (xle) port configuration for block of ports, specify a port range:

    For example, to delete the 40-Gigabit Ethernet port configuration for ports Q4 through Q7:

  5. To delete the 40-Gigabit Ethernet (xle) port configuration for an individual port, specify a port number:

    For example, to delete the 40-Gigabit Ethernet port configuration for port Q4: