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The Network Processor Two Port Ethernet Full-Duplex (NP-2E-FDX) is supported in the Cisco 4500 and Cisco 4700 series routers, beginning in Cisco IOS Releases 11.2(14)P and 11.3(4)T. It improves the number of applications in which the routers can be used. The feature enables the following:
The following are benefits of using the NP-2E-FDX:
This feature is supported on these platforms:
The NP-2E-FDX feature requires Cisco IOS Release 11.2(14) or later in order for the system to recognize it has a valid module. The corresponding RXBOOT image version is also required to network boot.
There are no new MIBs or RFCs supported by this feature.
This section describes how to enable the media type and either half-duplex or full-duplex operation.
| Step | Command | Purpose | ||
|---|---|---|---|---|
| 4500> enable
| Enter enable mode.
Enter the password. You have entered enable mode when the prompt changes to | ||
| 4500# configure terminal
| Enter global configuration mode. You have entered global configuration mode when the prompt changes to 4500(config)#.
| ||
| 4500(config)# interface ethernet 0
| Enter interface configuration mode. | ||
| 4500(config)# media-type {10baset | aui | auto-select} | Enable the media type by entering the media-type command with one of the following arguments:
| ||
| 4500(config)# {half-duplex | full-duplex} | To enable half-duplex operation, enter the half-duplex command.
To enable full-duplex operation, enter the full-duplex command. Note Full-duplex operation does not work when media-type aui is enabled. |
The following example configures auto-select and full-duplex operation:
>
>4500>
>4500>
>4500>
>4500>enable
>4500#config
>4500#configure terminal
>Enter configuration commands, one per line. End with CNTL/Z.
>4500(config)#interface ethernet 0
>4500(config-if)#media-type ?
> 10BaseT Use RJ45 connector
> AUI Use AUI connector
> auto-select Use whichever connector is attached
>
>4500(config-if)#media-type auto-select
>4500(config-if)#full-duplex
>4500(config-if)#exit
>4500(config)#exit
>4500#
>%SYS-5-CONFIG_I: Configured from console by console
The following example configures 10BaseT and half-duplex operation:
>
>4500>
>4500>enable
>4500#configure terminal
>Enter configuration commands, one per line. End with CNTL/Z.
>4500(config)#interface ethernet 0
>4500(config-if)#media-type 10BaseT
>4500(config-if)#half-duplex
>4500(config-if)#exit
>4500(config)#exit
>4500#
>%SYS-5-CONFIG_I: Configured from console by console
The following lists new or modified commands for the NP-2E-FDX feature. All other commands used with this feature are documented in the Cisco IOS Release 11.3 command references.
To specify the physical connection for the configuration, use the media-type interface configuration command. Use the no form of this command to restore the default value.
media-type {10baset | AUI | auto-select}
no media-type
| 10baset | Specifies the 10BaseT port for operation; selects an RJ45 10BaseT physical connection. |
| AUI | Specifies the AUI port for operation; selects a 15-pin physical connection. |
| auto-select | Allows the automatic selection of 10BaseT or AUI ports, but not both. |
media-type auto-select.
Interface configuration
This command first appeared in Cisco IOS Release 10.0.
When the NP-2E-FDX feature is installed, the default configuration is media-type auto-select. If users plan to switch interface types, auto-select is preferable because it simplifies the configuration process; users do not have to reconfigure their routers to use new ports each time.
If the user configures media-type aui, or if the user configures media-type auto-select and AUI is automatically selected, only half-duplex operation is possible; full-duplex operation is not.
The following example selects auto-sensing on Ethernet interface 0:
interface ethernet 0
media-type auto-select
half-duplex
full-duplex
To specify full-duplex mode on full-duplex single-mode and multimode port adapters, use the full-duplex command.
full-duplex
This command contains no keywords or arguments.
Interface configuration
This command first appeared in Cisco IOS Release 11.1.
If the user configures media-type aui, or if the user configures media-type auto-select and AUI is automatically selected, only half-duplex operation is possible; full-duplex operation is not. In such cases, if full-duplex operation has been enabled, it will revert to half-duplex.
The following example configures full-duplex mode on the Cisco 4500:
interface ethernet 0
full-duplex
media-type
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