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Fat AP and Cloud AP V200R010C00 Command Reference

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
arp topology-change disable

arp topology-change disable

Function

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.

Format

arp topology-change disable

undo arp topology-change disable

Parameters

None

Views

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.

Example

# 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
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Updated: 2019-11-21

Document ID: EDOC1100064352

Views: 209290

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