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Knowledge Base

Why VLANIF interface on S series switch has too many ARP entries

Publication Date:  2016-11-21  |   Views:  757  |   Downloads:  0  |   Document ID:  EKB1000379409

Contents

Issue Description

Why VLANIF interface on S series switch has too many ARP entries

Solution

If ARP strict learning is not enabled on an S series switch, except S1700, and a VLANIF interface on the switch is in a large broadcast domain, the switch learns ARP packets from any devices and generates ARP entries. The switch may need to maintain a large number of ARP entries. To address this problem, run the arp learning strict command to enable ARP strict learning.