2Splitting a 40-GE interface and combining 10-GE breakoutinterfacesSplitting a 40-GE QSFP+ interface into four 10-GE breakout interfacesYou can use a 40-GE QSFP+ interface as a single interface. To improve port density, reduce costs, andimprove network flexibility, you can also split a 40-GE QSFP+ interface into four 10-GE breakoutinterfaces.To split a 40-GE interface into four 10-GE breakout interfaces:Step Command Remarks1. Enter system view. system-view N/A2. Enter 40-GE interface view. interface interface-typeinterface-number N/A3. Split the 40-GE interface intofour 10-GE breakoutinterfaces.using tengigeBy default, a 40-GE interface is notsplit and operates as a singleinterface.The 10-GE breakout interfaces splitfrom a 40-GE interface support thesame configuration and attributes ascommon 10-GE interfaces, exceptthat they are numbered in a differentway.4. Reboot the device. N/AAfter creating the four 10-GEbreakout interfaces, the systemremoves the 40-GE interface.A 40-GE interface split into four10-GE breakout interfaces must use adedicated 1-to-4 cable.Combining four 10-GE breakout interfaces into a 40-GE interfaceIf you need higher bandwidth, you can combine the four 10-GE breakout interfaces into a 40-GEinterface.To combine four 10-GE breakout interfaces into a 40-GE interface:Step Command Remarks1. Enter system view. system-view N/A2. Enter the view of any 10-GEbreakout interface split from a40-GE interface.interface interface-typeinterface-number N/A3. Combine the four 10-GEbreakout interfaces into a40-GE interface.using fortygigeBy default, a 40-GE interface is notsplit and operates as a singleinterface.
