Cisco Systems 7200 VXR manual Configuring the Native Gigabit Ethernet Interfaces

Chapter 4 Observing System Startup and Performing a Basic Configuration

Configuring a Cisco 7200 VXR Router

Step 9 Save your settings to NVRAM. (See the “Saving the Running Configuration to NVRAM” section on page 4-15.) If you do not save the configuration setting that you created in the router using configuration mode and the setup facility, your configuration will be lost the next time you reload the router.

Configuring the Native Gigabit Ethernet Interfaces

The NPE-G2 and NPE-G1 report both the RJ-45 and SFP or GBIC GE interface ports as GigabitEthernet 0/1, GigabitEthernet 0/2, and GigabitEthernet 0/3. Before configuring either interface, you must first use the media-typeinterface command to select the media type, either the GBIC (gbic) for NPE-G1 or SFP (sfp) for NPE-G2, RJ-45 (rj45) port.

Note The RJ-45 port is the default media.

Changing the Media Type of the Native Gigabit Ethernet GBIC or SFP or RJ-45 Ports

To be able to use a particular media port, use Cisco IOS to select the media type. This is done by using the media-typeinterface command:

media-type { gbic sfp rj45 }

Example:

interface GigabitEthernet 0/1

media-type rj45

end

Configuring the Interface Transmission and Speed Modes

Step 1 After changing the media type, configure the speed and transmission modes to appropriately match the new interface characteristics. Changing the speed and duplex of an NPE-G1 or NPE-G2 Gigabit Ethernet interface is done using the speed and duplex interface commands.

Note These commands are only applicable when using the RJ-45 media.

speed { 10 100 1000 auto }

duplex { full half auto }

The following speed/duplex settings are supported:

Media TypeSpeedDuplex

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RJ45		10, 100, 1000, auto	full,	half,	auto
GBIC	(1)	1000, auto(2)	full,	half,	auto

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a.If you are using the no negotiation auto command, the speed and duplex should be set to a value other than auto for correct operation.

b.The only available speed in the no autonegotiation mode is 1000 Mbps; there is no difference whether 1000 or auto is selected.

Cisco 7200 VXR Installation and Configuration Guide

4-8 OL-5013-09