Configuring Port Speed on AS9716-32D

Owned by Tracy Yang
Dec 28, 2023
2 min read

Step 1          Configure port lane mode before set port speed. To make this configuration effective, users have to restart PICOS service after the configuration.

ovs-vsctl set-port-lane-mode {all | <port_number>} <0|1>

  • all | <port_number>: specifies the port number. all indicates to configure for all ports. <port_number> indicates the port number on the front panel, for example, number 10 represents port xe-1/1/10.

  • 0|1: specifies the port lane mode. 0 indicates 8 lanes, supporting port speed 400Gb/s. 1 indicates 4 lanes, supporting port speed 100Gb/s.

By default, the port lane mode is 0.

The following command configures the lane mode of port xe-1/1/10 to 1 to support speed 100Gb/s.

admin@PICOS-OVS:~$ ovs-vsctl set-port-lane-mode 10 1   Port 10 has been set lane_mode=1!   Please reboot for the change to take effect!

Step 2          Restart PICOS service after the configuration to make the configuration effective.

admin@PICOS-OVS:~$ sudo systemctl restart picos

Step 3          Show port information. From the show result, we can see that lane mode of port xe-1/1/10 has been set to 1.

admin@PICOS-OVS:~$ ovs-vsctl show-valid-port Front Sub BreakOut IfIndex Quad-Group Interface-Name Lane-Mode Configurable-Speed ----- --- -------- ------- ---------- -------------- --------- ------------------  1     1   False    129     N/A        xe-1/1/1       0         400G,100G  2     1   False    130     N/A        xe-1/1/2       0         400G,100G  3     1   False    131     N/A        xe-1/1/3       0         400G,100G  4     1   False    132     N/A        xe-1/1/4       0         400G,100G  5     1   False    133     N/A        xe-1/1/5       0         400G,100G  6     1   False    134     N/A        xe-1/1/6       0         400G,100G  7     1   False    135     N/A        xe-1/1/7       0         400G,100G  8     1   False    136     N/A        xe-1/1/8       0         400G,100G  9     1   False    137     N/A        xe-1/1/9       0         400G,100G  10    1   False    138     N/A        xe-1/1/10      1         400G,100G  11    1   False    139     N/A        xe-1/1/11      0         400G,100G  12    1   False    140     N/A        xe-1/1/12      0         400G,100G .......

Step 4          Configure the port speed.

Step 5          Show bridge information. From the result, we can see that the link speed of port xe-1/1/10 has been set to 100G.

 

 

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