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global-mac-limit limit {packet-action drop;}

Hierarchy Level

[edit logical-systems logical-system-name protocols l2-learning],[edit protocols l2-learning]

Release Information

Statement introduced in JUNOS Release 8.4.

Support for logical systems added in JUNOS Release 9.6.


(MX Series routers only) Limit the number of media access control (MAC) addresses learned from the logical interfaces on the router.


393,215 MAC addresses


limit—Number of MAC addresses that can be learned systemwide.

Range: 20 through 1,048,575

The remaining statement is explained separately in the “Summary of Bridge Domain Configuration Statements” chapter.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Published: 2010-05-11

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