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Fat AP and Cloud AP V200R010C00 Command Reference

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arp topology-change disable

arp topology-change disable


The arp topology-change disable command disables a device from aging or deleting ARP entries in response to network topology changes.

The undo arp topology-change disable command enables a device to age or delete ARP entries in response to network topology changes.

By default, when the network topology changes, ARP entries are aged or deleted.


arp topology-change disable

undo arp topology-change disable




System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Usually, when a ring protocol detects a network topology change, it will send a protocol packet to notify the ARP module to age or delete ARP entries. Then the device will re-learn ARP entries.

However, if the network topology changes frequently or a device has a large number of ARP entries, re-learning of ARP entries will cause flooding of ARP entries, consuming mass network resources and affecting other services running on the device. To avoid this problem, the arp topology-change disable command can be used to disable a device from aging or deleting ARP entries for network topology changes.


# Disable the device from aging or deleting ARP entries for network topology changes.

<Huawei> system-view
[Huawei] arp topology-change disable
Warning: This operation will not age or delete dynamic ARP entries when the topology changes,continue? [Y/N]:y
Updated: 2019-11-21

Document ID: EDOC1100064352

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