Cisco Systems 7200 VXR manual Sample Configuration

Chapter 4 Observing System Startup and Performing a Basic Configuration

Configuring a Cisco 7200 VXR Router

When using the GBIC media, there is also the additional negotiation auto command that is used to enable the IEEE 802.1z Gigabit Ethernet (1000 Mbps) autonegotiation protocol.

Step 2 To turn the autonegotiation feature off (it is on by default), issue the interface command no negotiation auto. This is useful for connecting to other Gigabit Ethernet equipment that does not support 802.1z autonegotiation.

Note The autonegotiation feature is not supported when using the rj-45 media type and will be ignored if implementation is attempted

If you change from the GBIC or SFP to the RJ-45 media type, you must set speed and duplex after you have executed the media-typecommand to ensure the interface will operate in the correct mode.

The media-typeGBIC or media-type SFP mode will always default to 1000 Mbps. Both full-duplex and half-duplex operation are supported in this mode.

Sample Configuration

	The following shows a typical configuration for the three Gigabit Ethernet interfaces on the NPE-G1. In
	this example, the first interface is configured for the GBIC media type, the second interface is configured
	for the RJ-45 media type, and the third interface is not used.
	interface GigabitEthernet0/1
	ip address 10.198.75.35 255.255.255.240
	load-interval 30
	no keepalive
	duplex full
	speed 1000
	media-type gbic
	no negotiation auto
	no cdp enable
	no shutdown
	!
	interface GigabitEthernet0/2
	ip address 10.179.16.2 255.255.255.240
	duplex auto
	speed auto
	media-type rj45
	no cdp enable
	no shutdown
	!
	interface GigabitEthernet0/3
	no ip address
	shutdown
	duplex auto
	speed auto
	media-type rj45
	no negotiation auto
	no cdp enable
Note	At the very minimum, an interface must be configured with the ip address, media-type, and speed
	commands before it can be enabled using the no shutdown command. Other interface commands might
	be needed, depending on the nature of the connected network.
		Cisco 7200 VXR Installation and Configuration Guide
OL-5013-09			4-9