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# arp timeout

#### Syntax

arp timeout timeoutVal

no arp timeout

#### Release Information

Command introduced before JUNOSe Release 7.1.0.

#### Description

Specifies how long an entry remains in the ARP cache. You can set the ARP timeout on Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet interfaces, and bridged Ethernet interfaces configured over ATM 1483. The default value is 21600 seconds (6 hours). Use the show configuration command to display the current value. The no version restores the default value.

#### Options

- timeoutVal—Time in seconds that an entry remains in the ARP cache

#### Mode

Interface Configuration

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