8371 Interface Configuration

Configuring and Monitoring Ethernet Link Aggregration Groups

This chapter describes how to configure and monitor Ethernet Link Aggregration Groups (LAGs).

• Accessing the LAG Configuration Environment
• LAG Configuration Commands
• Accessing the LAG Monitoring Environment
• LAG Monitoring Commands

Accessing the LAG Configuration Environment

Use the following procedure to access the LAG configuration commands. This process gives you access to the LAG configuration process.

1. At the OPCON prompt, enter configuration. For example:

       * configuration
       Config>
   

   After you enter the configuration command, the OPCON prompt (Config>) displays on the terminal. If the prompt does not appear when you first enter configuration, press Return again.

2. At the Config> prompt, enter net x, where x is an integer value between 32 and 35 that specifies the network interface number of the LAG to be configured to get you to the LAG Config prompt.

   Example:

       Config> net 32
       LAG Config>
    
   

LAG Configuration Commands

Use the following commands to configure LAG. Enter these commands at the LAG Config> prompt.

Table 31. LAG 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".
Add	Adds a link to a LAG.
Delete	Deletes a link from a LAG.
List	Displays the links currently configured on the LAG.
Set	Establishes or changes the configuration information for LAG.
Exit	Returns you to the previous command level. See "Exiting a Lower Level Environment".

Add

Use the add command to add a link to a LAG.

Syntax:

add

interface#

interface#

The specified physical interface must not be configured on the bridge and no IP or IPX protocol addresses can be defined on the interface.

Example:

LAG Config> add 1

Delete

Use the delete command to delete an interface from a LAG.

Syntax:

delete

interface#

interface#

Deletes a link from a LAG.

Example:

LAG Config> delete 1

List

Use the list command to display LAG configuration information.

Syntax:

list

Lists all LAG-related configuration information.

Example:

Config>net 32
Link Aggregation Configuration
LAG config>add 1
LAG config>list
Link Aggregation Group: 
Interface Number      : 32
Aggregation Type      : Sun Trunking 1.0/Fast EtherChannel
Flush Timer Value     : 1000ms
Interfaces in LAG     : 0  1  
LAG config>exit

Set

Use the set command to establish or change the configuration information concerning LAG.

Syntax:

set

flush-timer

flush-timer

Sets the duration of the flush timer in milliseconds.

Valid values: 100 - 4000

Default Value: 1000

Example:

LAG config>set flush-timer
Please enter new flush timer value [1000]? 4000
 

Accessing the LAG Monitoring Environment

Use the following procedure to access the LAG monitoring commands. This process gives you access to the LAG monitoring process.

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

       * console
       +
   

   After you enter the console command, the GWCON prompt (+) displays on the terminal. If the prompt does not appear when you first enter configuration, press Return again.

2. At the + prompt, enter + net x, where x is an integer value between 32 and 35 that specifies the network interface number of the LAG to be configured to get you to the LAG Console prompt.

   Example:

       + net 32
       Lag Console>
    
   

LAG Monitoring Commands

This section summarizes the LAG monitoring commands.

Enter the LAG monitoring commands at the LAG Console prompt.

Table 32. LAG 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".
Add	Dynamically adds a link to an aggregration group.
Delete	Dynamically removes a link from an aggregration group.
List	Displays current information about the aggregration.
Exit	Returns you to the previous command level. See "Exiting a Lower Level Environment".

Add

Use the add command to dynamically add a link to an aggregation group.

Note:

The specified physical interface must not be a bridge port and must not have any IP or IPX addresses currently assigned to it.

Syntax:

add

interface#

interface#

Dynamically adds a link to a LAG.

Example:

Lag Console> add 1

Delete

Use the delete command to dynamically remove a link from an aggregation group.

Syntax:

delete

interface#

interface#

Dynamically removes a link from a LAG.

Example:

Lag Console> delete 1

List

Use the list command to display current information about the aggregation such as the LAG MAC address, the state of the virtual LAG interface, and the state of each member link.

Syntax:

list

Example:

+net 32
Lag Console>list
Aggregation Type : Sun Trunking 1.0/Fast EtherChannel
Flush Timer Value: 1000ms
LAG MAC: 0.4.ac.c4.d3.f0
LAG Net 32 is UP
 
Link Net #   Link State
----------   ----------
         1   Up
         0   Down
Lag Console>

If the links in the LAG have auto-negotiated to different speeds so that there is a speed mismatch, the following information will appear:

Lag Console>list
Aggregation Type : Sun Trunking 1.0/Fast EtherChannel
Flush Timer Value: 1000ms
LAG MAC: 0.4.ac.c4.d3.f0
LAG Net 32 is DOWN
 
LAG error: speed mismatch detected
Link Net #   Link State
----------   ----------
....
Lag Console>