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# bridge learn

#### Syntax

bridge { bridgeGroupName | vplsName } learn addressCount

no bridge { bridgeGroupName | vplsName } learn

#### Release Information

Command introduced before JUNOSe Release 7.1.0.
vplsName variable added in JUNOSe Release 7.1.0.

#### Description

Sets the maximum number of dynamic MAC addresses that a bridge group or VPLS instance can learn. The no version restores the default value, 0 (zero) learned addresses. The default value implies that there is no maximum number of learned entries for an individual bridge group or VPLS instance; that is, a bridge group or VPLS instance can learn an unlimited number of MAC addresses, up to the maximum number that the router supports.

To enable or disable the ability of a bridge group or VPLS instance to learn dynamic MAC addresses, use the bridge acquire command.

| Note: For information about the maximum number of learned MAC address entries combined for all bridge groups and VPLS instances supported per chassis, see JUNOSe Release Notes, Appendix A, System Maximums.

#### Options

- bridgeGroupName—Name of a bridge group specified with the bridge command
- vplsName—Name of a VPLS instance created with the bridge vpls transport-virtual-router command
- addressCount—Maximum number of MAC addresses that the bridge group can learn, in the range 0–64000

#### Mode

Global Configuration

#### Related Topics

- Configuring Optional Attributes for VPLS Instances in the JUNOSe BGP and MPLS Configuration Guide

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