Concept Guide

The following example shows splitting a 40G interface:
Dell(conf)#stack-unit 1 port 49 portmode quad
Warning: Enabling Quad mode on stack-unit 1 port 49. Please verify whether the configs related
to interface Fo 1/49 are cleaned up before proceeding further.
[confirm yes/no]:yes
Quad mode is enabled on stack-unit 1 port 49
Dell(conf)#Jan 1 13:37:01: %STKUNIT1-M:CP %IFMGR-5-DYNAMIC_FANOUT: Port 49 in slot 1 has been
fanned-out
TenGigabitEthernet 1/49/1 unassigned NO Manual administratively down down
TenGigabitEthernet 1/49/2 unassigned NO Manual administratively down down
TenGigabitEthernet 1/49/3 unassigned NO Manual administratively down down
TenGigabitEthernet 1/49/4 unassigned NO Manual administratively down down
The following example shows the split interfaces:
Dell#show interfaces status
Port Description Status Speed Duplex Vlan
Te 1/49/1 Down 10000 Mbit Auto --
Te 1/49/2 Down 10000 Mbit Auto --
Te 1/49/3 Down 10000 Mbit Auto --
Te 1/49/4 Down 10000 Mbit Auto --
Te 1/50/1 Down 10000 Mbit Auto --
Te 1/50/2 Down 10000 Mbit Auto --
Te 1/50/3 Down 10000 Mbit Auto --
Te 1/50/4 Down 10000 Mbit Auto --
Te 1/51/1 Down 10000 Mbit Auto --
Te 1/51/2 Down 10000 Mbit Auto --
Te 1/51/3 Down 10000 Mbit Auto --
Te 1/51/4 Down 10000 Mbit Auto --
Te 1/52/1 Down 10000 Mbit Auto --
Te 1/52/2 Down 10000 Mbit Auto --
Te 1/52/3 Down 10000 Mbit Auto --
Te 1/52/4 Down 10000 Mbit Auto --
Te 1/53/1 Down 10000 Mbit Auto --
Te 1/53/2 Down 10000 Mbit Auto --
Te 1/53/3 Down 10000 Mbit Auto --
Te 1/53/4 Down 10000 Mbit Auto --
Te 1/54/1 Down 10000 Mbit Auto --
Te 1/54/2 Down 10000 Mbit Auto --
Te 1/54/3 Down 10000 Mbit Auto --
Te 1/54/4 Down 10000 Mbit Auto --
The physical port is not present in the show inventory media command output:
Dell#show inventory media
Slot Port Type Media Serial Number Dell Qualified
-----------------------------------------------------------------------------------
1 49/1 QSFP 4x10GBASE-CR1-3M CN027GG536409H3 Yes
1 49/2 QSFP 4x10GBASE-CR1-3M CN027GG536409H3 Yes
1 49/3 QSFP 4x10GBASE-CR1-3M CN027GG536409H3 Yes
1 49/4 QSFP 4x10GBASE-CR1-3M CN027GG536409H3 Yes
Splitting QSFP Ports to SFP+ Ports
The platform supports splitting a single 40G QSFP port into four 10G SFP+ ports using one of the supported breakout cables (for a list of
supported cables, refer to the Installation Guide or the Release Notes).
NOTE
: When you split a 40G port (such as fo 1/4) into four 10G ports, the 40G interface conguration is still available in the
startup conguration when you save the running conguration by using the write memory command. When a reload of the
system occurs, the 40G interface conguration is not applicable because the 40G ports are split into four 10G ports after the
reload operation. While the reload is in progress, you might see error messages when the conguration le is being loaded. You
can ignore these error messages. Similarly, such error messages are displayed during a reload after you congure the four
individual 10G ports to be stacked as a single 40G port.
442 Interfaces