Configuring the QSFP+ Port Type on QFX3500 Standalone Switches
By default, the four 40-Gbps QSFP+ ports are configured to operate as 10-Gigabit Ethernet (xe) ports. 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 servers, storage, and switches. You can, however, configure the four 40-Gbps QSFP+ ports to operate as 40-Gigabit Ethernet (xle) ports.
 | Note: Port Q0 supports only three (not the typical four) 10-Gigabit Ethernet ports, because one port is reserved. |
 | Caution: The Packet Forwarding Engine on the QFX3500 standalone switch is restarted when you commit port type configuration changes (for example, configuring or deleting an xle port). As a result, you might experience packet loss on the device. |
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) configuration.
| Note: When you delete an xle block of ports or individual port, the ports return to operating as 10-Gigabit Ethernet ports. |
- To configure a block of ports to operate as 40-Gigabit
Ethernet (xle) ports, specify a port range:
For example, to configure ports Q0 through Q3 to operate as 40-Gigabit Ethernet ports:
[edit chassis fpc 0 pic 2]user@switch# set xle port-range 0 3 - To configure an individual port to operate as a 40-Gigabit
Ethernet (xle) port, specify a port number:[edit chassis fpc 0 pic 2]user@switch# set xle port port-number
For example, to configure port Q2 to operate as a 40-Gigabit Ethernet port:
[edit chassis fpc 0 pic 2]user@switch# set xle port 2 - Review your configuration and issue the commit command.[edit]user@switch# commitcommit complete
- To delete a block of ports configured as 40-Gigabit Ethernet
(xle) ports (and return to the default 10-Gigabit Ethernet configuration),
specify a port range:[edit chassis fpc 0 pic 2]user@switch# delete xle port-range port-range-low port-range-high
For example, to delete the 40-Gigabit Ethernet (xle) port configuration for ports Q0 through Q3 (and return to the default 10-Gigabit Ethernet configuration):
[edit chassis fpc 0 pic 2]user@switch# delete xle port-range 0 3 - To delete an individual port configured as a 40-Gigabit
Ethernet (xle) port (and return to the default 10-Gigabit Ethernet
configuration), specify an individual port:[edit chassis fpc 0 pic 2]user@switch# delete xle port port-number
For example, to delete the 40-Gigabit Ethernet (xle) port configuration for port Q2 (and return to the default 10-Gigabit Ethernet configuration):
[edit chassis fpc 0 pic 2]user@switch# delete xle port 2 - Review your configuration and issue the commit command.[edit]user@switch# commitcommit complete
