Administrator Guide

Provisioning Combo Ports
The device has two combo ports of 1G SFP. By default, the combo ports are in Hybrid mode. You can provision the combo ports to act as
a copper or fiber medium.
The speed and negotiation auto commands are not available on the combo ports in the Hybrid mode. To apply these commands on
combo ports, provision the ports as individual medium. You can use the combo-port-type command to provision the combo ports as
copper or fiber medium.
Dell(conf-if-gi-1/23)# combo-port-type copper
Dell(conf-if-gi-1/23)# combo-port-type fiber
When a port is provisioned as copper, you can configure all the supported speeds on a copper interface (10 M, 100 M, 1 G). Whenever
there is a change in provisioning, all the existing configurations on the port are deleted. This ensures that stale configurations, that are not
applicable for a specific medium, are not present on the port. When the configurations are deleted, a confirmation message is displayed
and you can choose whether to delete them or not.
When combo ports are in Auto or Hybrid mode, the system assumes the presence of SFP as fiber medium and switches to fiber mode.
When an empty SFP is inserted with a copper cable present, a few copper-only commands are not accessible and the output of
show
commands might provide incorrect information. It is recommended not to have SFP inserted when copper cable is used as active medium.
The following table describes how the speed and negotiation auto commands work with different modes of a combo port:
Table 28. Behavior on Combo Ports
Mode Behavior of speed Behavior of negotiation auto
Auto/Hybrid Cannot be configured and an error is
displayed.
Cannot be configured and no error is
displayed.
Copper Can be configured. Can be configured.
Fiber Cannot be configured. Cannot be configured.
When SFP is inserted on copper-provisioned combo port, the system displays a syslog message.
NOTE:
When the port is provisioned as fiber and a copper cable is inserted, it is not detected by the device and hence no
syslog message is displayed.
If SFP is present when the port is being provisioned as copper, the system displays a syslog message.
NOTE:
When the port is provisioned as fiber, the presence of copper cable is not detected by the device and hence no
syslog message is displayed.
View Advanced Interface Information
The following options have been implemented for the show [ip | running-config] interfaces commands for (only) stack-
unit interfaces.
When you use the configured keyword, only interfaces that have non-default configurations are displayed. Dummy stack-unit
interfaces (created with the stack-unit command) are treated like any other physical interface.
The following example lists the possible show commands that have the configured keyword available:
In EXEC mode, the show interfaces switchport command displays only interfaces in Layer 2 mode and their relevant
configuration information. The show interfaces switchport command displays the interface, whether it supports IEEE 802.1Q
tagging or not, and the VLANs to which the interface belongs.
DellEMC#show interfaces switchport
Name: GigabitEthernet 3/1
802.1QTagged: True
Vlan membership:
Vlan 2
Name: GigabitEthernet 3/2
802.1QTagged: True
Vlan membership:
Vlan 2
336
Interfaces