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Administering Resilient Links

Resilient links protect your network against an individual link or device failure by providing a secondary backup link that is inactive until needed.

This chapter provides guidelines and other key information about how to configure resilient links in your system.

For more information about resilient links, see the Implementation Guide for your system.

Menu Structure

The commands that you can use depend on the system that you have, your level of access, and the types of modules and other hardware options that are configured for your system. The following diagram shows the complete list of commands for all systems. See the checklist at the beginning of each command description in this chapter for whether your system supports the command.

bridge link summary

Displays summary information about configured resilient links on your system. In a summary report, the system displays the index number, link name, and whether the link is up or down.

Valid Minimum Abbreviation

b l s

Fields in the Bridge Link Summary Display

Field

Description

Index

Identifier that the system assigned to the resilient link pair. You can select all resilient link pairs or one resilient link pair.

Name

Defined resilient link pair name

State

Whether the resilient link pair is up or down

bridge link detail

Displays detailed link information in addition to the summary information.

Valid Minimum Abbreviation

b l det

Fields in the Bridge Link Detail Display

Field

Description

Active Port

Port that carries network traffic

Enable State

Whether the resilient pair is enabled or disabled.

Index

Identifier that the system assigned to the resilient link pair. You can select all resilient link pairs or one resilient link pair.

Main Link

Link state (up or down) of the main link

Main Port

Main resilient link port

Name

Defined link name

Standby Link

Link state (up or down) of the standby link

Standby Port

Standby resilient link port to which traffic shifts if the main resilient link port fails

State

Whether the resilient link pair is up or down

bridge link define

Defines one or more links on the system. When you define a link, you specify ports and characteristics for the link.

Valid Minimum Abbreviation

b l def

Important Considerations

Options

Prompt

Description

Possible Values

[Default]

Resilient link name

Name of the link. Use quotation marks around any character string that contains spaces

Maximum 32 alphanumeric characters

-

Main Port

Main port that you want to be part of the link.

-

Standby Port

Standby port that you want to be part of the link.

-

Define another link?

Whether you want to define another link.

n

Reboot the system?

Resilient links that you define do not take effect until you reboot the system.

y

Procedure

You can define all links in one bridge link define operation and then reboot. At the end of each link definition, the system prompts you to define another link.

1 .   Enter the link name, or to get information about specifying the link name, enter ?

2 .   Select the port that you want to be the main port.

To get information about the selectable ports, enter ?

3 .   Select the port that you want to be the standby port.

To get information about the selectable ports, enter ?

4 .   At the system prompt, to define another link enter y (yes), or to end the link define sequence, enter n (no).

You must then reboot for the links to take effect.

bridge link linkState

Sets the linkState value (enabled or disabled) for a specific resilient link.

Valid Minimum Abbreviation

b l l

Important Considerations

Options

Prompt

Description

Possible Values

[Default]

Resilient link index

Index number of the resilient link that you want to modify

-

linkState value

Link state value for the selected link index

bridge link activePort

Sets either the main port or the standby port as the active port. The active port carries the network traffic.

Valid Minimum Abbreviation

b l a

Options

Prompt

Description

Possible Values

[Default]

Resilient link index

Index number of the link whose active port you want to set

-

Active port state

Port that you want to carry network traffic

bridge link modify

Modifies the link name, as well as the main port and standby port of a defined resilient link.

b l m

Important Considerations

Options

Prompt

Description

Possible Values

[Default]

Resilient link name

New resilient link name. Use quotation marks around any character string that has embedded spaces

Maximum 32 alphanumeric characters (spaces not allowed)

-

Main port

New port to be the main port of the defined resilient link

Any of the available ports on the system

-

Standby port

New port to be the standby port of the defined resilient link

Any of the available ports on the system

-

Define another link?

Whether you want to define another link.

n

Reboot the system?

Resilient links that you define do not take effect until you reboot the system.

y

bridge link remove

Removes a previously defined resilient link pair. You can remove all resilient link pairs or one resilient link pair with a remove operation.

Valid Minimum Abbreviation

b l r

Important Consideration

Options

Prompt

Description

Possible Values

[Default]

Resilient link index

Index number of the resilient link pair that you want to remove

-

Bridge Link Remove Example

Select menu option: bridge link remove
Select link index(s) (1-2|all|?): 2
The configuration of the ports will be modified.
The system must be rebooted to complete resilient link configuration.
This may take a few minutes.
Are you sure you want to reboot the system? (n,y) [y]:

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