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If the port name of the 40G/100G/200G/400G optical interfaces is xe-1/1/n before port breakout; however, after port breakout the port names of the four interfaces are xe-1/1/n.1, xe-1/1/n.2, xe-1/1 /n.3 and xe- 1/1/n.4. For details about port breakout and merge please refer to Configuring Port Breakout and Merge.
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