Specifications

158 Implementing IBM System Networking 10Gb Ethernet Switches
Configuring QSFP+
The G8264 RackSwitch is equipped with QFSP+ ports that can operate either in 10 GbE or
40 GbE mode.
The QSFP+ ports numbering depends on the mode of operation (10 GbE or 40 GbE)
(Table 5-1)>
Table 5-1 QSFP+ ports numbering
To change the QSFP+ port mode, complete the following steps:
1. Run show boot qsfp-port-modes to display the current port mode for the QSFP+ ports
(Example 5-1).
Example 5-1 Show the QSFP+ port mode
AGG1#show boot qsfp-port-modes
QSFP ports booted configuration:
Port 1, 2, 3, 4 - 10G Mode
Port 5, 6, 7, 8 - 10G Mode
Port 9, 10, 11, 12 - 10G Mode
Port 13, 14, 15, 16 - 10G Mode
QSFP ports saved configuration:
Port 1, 2, 3, 4 - 10G Mode
Port 5, 6, 7, 8 - 10G Mode
Port 9, 10, 11, 12 - 10G Mode
Port 13, 14, 15, 16 - 10G Mode
AGG1#
2. Change the port mode to 40 GbE by selecting the physical port number by using either an
individual port or a list of QSFP+ ports (Example 5-2).
Example 5-2 Change the QSFP+ port mode to 40 GbE
AGG1(config)#boot qsfp-40Gports 1,5
3. Verify the configuration changes by running the command shown in Example 5-3.
Example 5-3 Verify the configuration change of the QSFP+ port mode to 40 GbE
AGG1#show boot qsfp-port-modes
QSFP ports booted configuration:
Port 1, 2, 3, 4 - 10G Mode
Port 5, 6, 7, 8 - 10G Mode
Port 9, 10, 11, 12 - 10G Mode
Port 13, 14, 15, 16 - 10G Mode
Important: Changing the QSFP+ operation mode requires a reboot.
Physical port number 40 GbE mode 10 GbE mode
Port 1Port 1Ports 1 - 4
Port 5Port 5Ports 5 - 8
Port 9 Port 9 Ports 9 - 12
Port 13 Port 13 Ports 13 - 16