3
Splitting a 40-GE interface and combining 10-GE breakout
interfaces
Restrictions and guidelines
This feature is not supported on non-default MDCs.
On an LSUM2QGS24RSG0 interface module, this feature is supported on interfaces 1 through 16.
On an LSUM1CGS8QSSH0 interface module, this feature is not supported on 40-GE interfaces.
On an LSUM1CQGS32SF0 interface module, this feature is not supported on 40-GE interfaces.
Splitting a 40-GE interface into four 10-GE breakout interfaces
IMPORTANT:
For this configuration to survive a reboot, save the configuration before rebooting the switch.
You can use a 40-GE interface as a single interface. To improve port density, reduce costs, and
improve network flexibility, you can also split a 40-GE interface into four 10-GE breakout interfaces.
The 10-GE breakout interfaces support the same configuration and attributes as common 10-GE
interfaces, except that they are numbered differently.
For example, you can split 40-GE interface FortyGigE 1/0/1 into four 10-GE breakout interfaces
Ten-GigabitEthernet 1/0/1:1 through Ten-GigabitEthernet 1/0/1:4.
A 40-GE interface split into four 10-GE breakout interfaces must use a dedicated 1-to-4 cable. For
more information about the cable, see the installation guide.
After you configure this feature on a 40-GE interface on an interface card, reboot the interface card to
make the configuration take effect. Do not assign the changed interfaces to any non-default MDC
before rebooting the interface card.
To split a 40-GE interface into four 10-GE breakout interfaces:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter 40-GE interface view.
interface interface-type
interface-number
N/A
3.
Split the 40-GE interface into
four 10-GE breakout
interfaces.
using tengige
By default, a 40-GE interface is not
split and operates as a single
interface.
Combining four 10-GE breakout interfaces into a 40-GE interface
IMPORTANT:
For this configuration to survive a reboot, save the configuration before rebooting the switch.
If you need higher bandwidth on a single interface, you can combine the four 10-GE breakout
interfaces into a 40-GE interface.
After you combine the four 10-GE breakout interfaces, replace the dedicated 1-to-4 cable with a
dedicated 1-to-1 cable or a 40-GE transceiver module. For more information about the cable or
transceiver module, see the installation guide.
After you configure this feature on a 10-GE breakout interface on an interface card, reboot the
interface card to make the configuration take effect. Do not assign the changed interfaces to any
non-default MDC before rebooting the interface card.
To combine four 10-GE breakout interfaces into a 40-GE interface: