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Software User's Guide Version 3.4

Configuring and Monitoring the Ethernet Network Interface

This chapter describes Ethernet interface configuration and operational commands. It includes the following sections:

Accessing the Ethernet Interface Configuration Process

Use the following procedure to access the configuration process. This process gives you access to an Ethernet interface's configuration process.

  1. At the OPCON prompt, enter talk 6. (For more detail on this command, see "What is the OPCON Process?".) For example: 
    * talk 6
Config>

    The CONFIG prompt (Config>) displays on the console. If the prompt does not appear when you first enter configuration, press Return again.

  2. At the CONFIG prompt, enter the list devices command to display the network interface numbers for which the router is currently configured.
  3. Record the interface numbers.
  4. Enter the network command and the number of the Ethernet interface you want to configure. For example: 
    Config> network 0
ETH Config>

    The Ethernet configuration prompt (ETH Config>), is displayed.

Ethernet Configuration Commands

This section summarizes and then explains the Ethernet configuration commands. Enter the commands at the ETH config> prompt.

Table 33. Ethernet Configuration Command Summary
Command Function
? (Help) Displays all the commands available for this command level or lists the options for specific commands (if available). See "Getting Help".
 Connector-Type   Sets the connector type. 
 IP-Encapsulation   Sets the IP encapsulation as Ethernet (type X'0800'), IEEE (802.3 with SNAP) or both. 
 List   Displays the current connector-type, NetWare IPX encapsulation, and IP encapsulation. 
Physical-Address Sets the physical MAC address.
Exit Returns you to the previous command level. See "Exiting a Lower Level Environment".

Connector-Type

Use the connector-type command to set the connector type.2216s support AUI (10BASE5) and RJ-45 (10BASE-T) connectors, and auto-config options.

Syntax:

connector-type
name

IP-Encapsulation

Use the IP-encapsulation command to select Ethernet (Ethernet type X'0800'), IEEE 802.3 (Ethernet 802.3 with SNAP), or both. The default is Ethernet.

The option both enables the 2216 to use Ethernet encapsulation to transmit to hosts that have Ethernet encapsulation and to use IEEE 802.3 encapsulation to transmit to hosts that have IEEE 802.3 encapsulation. If your Ethernet LAN includes some hosts that use one type of encapsulation and some that use the other, entering both enables all of them to communicate.

The option both applies only to unicast frames. If you enter both, you are prompted to enter either ethernet or ieee-802.3 for broadcast and multicast frames.

Syntax:

IP-encapsulation

Example: 

Eth Config [1]>ip-encapsulation both
How would you like IP broadcast/multicast frames to be sent (ETHER/IEEE-802.3) [ETHER]?

List

Use the list command to display the current configuration for the Ethernet interface, including the connector-type, IPX encapsulation type, and IP encapsulation type.

Syntax:

list
all

Example:
list all 
Connector type:            AUI (10BASE5)
IP Encapsulation:          ETHER 
 
MAC Address:               023456789A56

Physical-Address

Use the physical-address command to set the physical (MAC) address.

Syntax: physical-address
address

physical-address
This command lets you indicate whether you want to define a locally administered address for the Ethernet interface's MAC sublayer address, or use the default burned-in address (indicated by all zeros). The MAC sublayer address is the address that the Ethernet interface uses to receive and transmit frames.
Note:Pressing Enter leaves the value the same. Entering 0 causes the router to use the burned-in address. The default is to use the burned-in address.

Valid Values: Any 12-digit hexadecimal address.

Default Value: burned-in address (indicated by all zeros).

Example:
physical-address 
 
MAC address in 00:00:00:00:00:00 form []? 12:15:00:FA:00:FE

Accessing the Ethernet Interface Operating Process

To monitor information related to the Ethernet Network Interface, access the interface monitoring process by doing the following:

  1. At the OPCON prompt, enter talk 5. For example: 
    * talk 5

    The GWCON prompt (+) is displayed on the console. If the prompt does not appear when you first enter GWCON, press Return again.

  2. At the GWCON prompt, enter the configuration command to see the protocols and networks for which the router is configured. For example: 
    + configuration

    See page "Configuration" for sample output of the configuration command.

  3. Enter the network command and the number of the Ethernet interface. In this example: 
    + network 0
ETH>

    The Ethernet monitoring prompt is displayed. You can now view information about the Ethernet interface by entering monitoring commands.

Ethernet Interface Monitoring Commands

This section summarizes and explains the Ethernet monitoring commands. Enter commands at the ETH> prompt. Table 34 lists the monitoring commands.

Table 34. Ethernet monitoring command Summary
Command Function
? (Help) Displays all the commands available for this command level or lists the options for specific commands (if available). See "Getting Help".
 Collisions   Displays collision statistics for the specified Ethernet interface. 
Exit Returns you to the previous command level. See "Exiting a Lower Level Environment".

Collisions

This command shows the counts of transmissions for packets that incurred collisions before successful transmission. Counters are given for packets sent after the collision XXXXx packets sent after 15 collisions. Increasing numbers of packets transmitting with collisions and higher numbers of collision per packet are signs of transmitting onto a busy Ethernet.

These counters are cleared by the OPCON clear command. This data is exported via SNMP as the dot3CollTable counter.

Syntax:

collisions
 

Example: 

Eth> coll
Transmitted with  1 collisions:0
Transmitted with  2 collisions:0
Transmitted with  3 collisions:0
Transmitted with  4 collisions:0
Transmitted with  5 collisions:0
Transmitted with  6 collisions:0
Transmitted with  7 collisions:0
Transmitted with  8 collisions:0
Transmitted with  9 collisions:0
Transmitted with 10 collisions:0
Transmitted with 11 collisions:0
Transmitted with 12 collisions:0
Transmitted with 13 collisions:0
Transmitted with 14 collisions:0
Transmitted with 15 collisions:0

Ethernet Dynamic Reconfiguration Support

This section describes dynamic reconfiguration (DR) as it affects Talk 6 and Talk 5 commands.

CONFIG (Talk 6) Delete Interface

Ethernet supports the CONFIG (Talk 6) delete interface command with no restrictions.

GWCON (Talk 5) Activate Interface

Ethernet supports the GWCON (Talk 5) activate interface command with no restrictions.

All Ethernet interface-specific commands are supported by the GWCON (Talk 5) activate interface command.

GWCON (Talk 5) Reset Interface

Ethernet supports the GWCON (Talk 5) reset interface command with no restrictions.

All Ethernet interface-specific commands are supported by the GWCON (Talk 5) reset interface command.

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