Cisco ASR 920 series Handmatig - Pagina 20

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Connect Gigabit Ethernet Ports

You can choose to connect either a copper or a fiber cable in the Gigabit Ethernet ports.

Note

The device 10/100/1000 ports configure themselves to operate at the speed of devices to which they are

attached. Autonegotiation is enabled by default in the chassis. You can manually set the speed and the duplex

parameters. If the device to which the ports are attached, does not autonegotiate, low performance or no linkage

may result.

To maximize performance, choose one of these methods for configuring Ethernet ports:

• Have ports autonegotiate both speed and duplex.

• Set the port speed and duplex parameters on both ends of the connection.

Note

You can use the mdix auto command in interface configuration mode in CLI to enable automatic

media-dependent interface with crossover detection. After you enable, the device 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 connecting to a copper 10/100/1000 port. If the mdix auto command

is not enabled, connect the cable through SFP module.

SUMMARY STEPS

1. Connect to workstations, servers, and devices, connect a straight-through cable to an RJ-45 connector on

the front panel. When connecting to devices or repeaters, use a crossover cable.

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 device and the connected device have established a link.

3. Reconfigure and reboot the connected device if necessary.

4. Repeat Steps 1 to 3 for each device that is to be connected.

DETAILED STEPS

Step 1

Connect to workstations, servers, and devices, connect a straight-through cable to an RJ-45 connector on the front panel.

When connecting to devices or repeaters, use a crossover cable.

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 device

and the connected device have established a link.

If the port LED does not turn on, check whether the device at the other end is turned on or whether there is any failure.

Note

On user network interface (UNI) ports, the port LED turns green after the link is established.

Step 3

Reconfigure and reboot the connected device if necessary.

Step 4

Repeat Steps 1 to 3 for each device that is to be connected.

Installing the Cisco ASR 920 Series Router