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Overview
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NOTEs:
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The 400GE and 200GE optical interface can be used as a single interface or split into two or four independent and logical interfaces. The detailed information is shown as below.
Table 1. Detailed information of split type
Panel Interface Type | Optical Module | Split Type |
400G | 400G | 4*100G |
2*200G | ||
200G | 200G | 4*50G |
2*100G | ||
100G | 4*25G | |
2*50G |
Limitation for N8550-24CD8D
For N8550-24CD8D, it supports thirty-two panel interfaces, which belong to four pipes, that is every eight panel ports (six 200G and two 400G ports) belong to one pipe. For only 18 ports are allowed to be split in one pipe, you need to split interfaces within this limitation. The corresponding relationship of panel ports and pipes is shown as below.
Table 2. Corresponding relationships of panel ports and pipes
pipe0 | pipe1 | pipe2 | pipe3 |
1, 2, 3, 4, 5, 7, 26, 28 | 6, 8, 13, 15, 17, 19, 30, 32 | 9, 11, 18, 20, 21, 23, 27, 29 | 10, 12, 14, 16, 22, 24, 25, 31 |
Configuring Port Breakout and Port Merge
To configure port breakout for the 400GE interfaces of the switch, take the following steps:.
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set interface gigabit-ethernet <port-name> breakout true
Step 2 Specify Split the interface as required. The breakout type is different based on switch models.
For N9550-64D, N9550-32D and AS9716-32D, only 400G interface is supported, and you can specify the breakout type as 4 x 100G or 2 x 200G.
set interface gigabit-ethernet <port-name> breakout-type {4*100G | 2*200G}
For N8550-24CD8D, 400G and 200G interfaces are supported, and you can specify the breakout type as 4 x 100G, 2 x 200G, 4 x 50G, 2 x 100G or 4 x 25G.
set interface gigabit-ethernet <port-name> breakout-type {4*100G | 2*200G | 4*50G | 2*100G | 4*25G}
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Step 5 View the interface information after system startup. You can view the information of split interfaces.
run show interface brief
Configuration Example of Port Breakout
Overview
For N8550-24CD8D, split the 400GE interface into two 200GE interfaces, further reduce the speed of one split interface to 100GE, and view the interface information after system startup.
Procedure
Step 1 Enable the port breakout function.
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admin@PICOS# set interface gigabit-ethernet xe-1/1/48 breakout true |
Step 2 Specify the breakout type as 2 x 200G.
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admin@PICOS# set interface gigabit-ethernet xe-1/1/48 breakout-type 2*200G |
Step 3 Commit the configuration.
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admin@PICOS# commit |
Step 4 Restart PicOS to make the setting take effect.
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admin@PICOS# exit
admin@PICOS> start shell sh
admin@PICOS:~$ sudo systemctl restart picos |
Step 5 Reduce the speed of split interface xe-1/1/48.1 to 100GE.
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admin@PICOS> configure
admin@PICOS# set interface gigabit-ethernet xe-1/1/48.1 speed 100000
admin@PICOS# commit |
Verify the configuration
Use the run show interface brief command to view the interface xe-1/1/1 information after system startup.
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admin@PICOS# run show interface brief
Interface Management Status Flow Control Duplex Speed Description
-------------- ---------- ------ ------------ ------ ------- ------------------------------
……. ……. ……. ……. ……. …….
xe-1/1/48.1 Enabled Up Disabled Full 100Gb/s
xe-1/1/48.2 Enabled Up Disabled Full 200Gb/s
xe-1/1/49 Enabled Down Disabled Full Auto
…… ……. …… …… …… …… |