Users 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 ber 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 ber 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 congure all the supported speeds on a copper interface (10 M, 100 M, 1 G). Whenever
there is a change in provisioning, all the existing congurations on the port are deleted. This ensures that stale congurations, that are not
applicable for a specic medium, are not present on the port. When the congurations are deleted, a conrmation 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 ber medium and switches to ber 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 dierent modes of a combo port:
Table 25. Behavior on Combo Ports
Mode Behavior of speed Behavior of negotiation auto
Auto/Hybrid Cannot be congured and an error is
displayed.
Cannot be congured and no error is
displayed.
Copper Can be congured. Can be congured.
Fiber Cannot be congured. Cannot be congured.
When SFP is inserted on copper-provisioned combo port, the system displays a syslog message.
NOTE
: When the port is provisioned as ber 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 ber, 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 congurations are displayed. Dummy stack-unit interfaces
(created with the
stack-unit command) are treated like any other physical interface.
Examples of the show Commands
The following example lists the possible show commands that have the congured keyword available:
In EXEC mode, the show interfaces switchport command displays only interfaces in Layer 2 mode and their relevant
conguration 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.
Dell#show interfaces switchport
Name: GigabitEthernet 3/1
802.1QTagged: True
348
Interfaces