Chapter 2
Switch Installation
You can use the mdix auto interface configuration command in the CLI to enable the automatic
Note
medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled,
the switch module detects the required cable type for copper Ethernet connections and configures the
interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 module port on the switch module, regardless of the type of device
on the other end of the connection.
The auto-MDIX feature is enabled by default.
Step 2
Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on
when both the switch module and the connected device have established link.
The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for
loops. This takes about 30 seconds, and then the port LED turns green. If the port LED does not turn on,
the device at the other end might not be turned on, or there might be a cable problem or a problem with
the adapter installed in the attached device. See
problems.
Reconfigure and reboot the connected device if necessary.
Step 3
Repeat Steps 1 through 3 to connect each device.
Step 4
Connecting to SFP Modules
This section describes how to connect to SFP modules. For instructions on how to connect to fiber-optic
SFP modules, see the
For instructions about how to install or remove an SFP module, see the
Modules" section on page
Connecting to Fiber-Optic SFP Modules
Follow these steps to connect a fiber-optic cable to an SFP module:
Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable
Caution
until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables
from contamination and ambient light.
Before connecting to the SFP module, be sure that you understand the port and cabling stipulations in
the
See
SFP module.
Step 1
Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.
Step 2
Insert one end of the fiber-optic cable into the SFP module port (see
Step 3
Insert the other cable end into a fiber-optic receptacle on a target device.
OL-8914-02
"Connecting to Fiber-Optic SFP Modules"
2-15.
"Installation Guidelines" section on page 2-3
Appendix B, "Connector and Cable Specifications"
Chapter 3, "Troubleshooting,"
and in the
"SFP Module Slots" section on page
for information about the LC on the
Cisco Catalyst Blade Switch 3020 for HP Hardware Installation Guide
Connecting to SFP Modules
for solutions to cabling
section.
"Installing and Removing SFP
Figure
2-14).
1-4.
2-19
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