nd trap hash-conflict enable

Function

The nd trap hash-conflict enable command enables the trap function for hash conflicts of ND entries.

The undo nd trap hash-conflict enable command disables the trap function for hash conflicts of ND entries.

By default, the trap function for hash conflicts of ND entries is enabled.

Format

nd trap hash-conflict enable

undo nd trap hash-conflict enable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

After the trap function for hash conflicts of ND entries is configured, the switch sends traps when a hash conflict of ND entries occurs so that you can obtain the status of ND entries promptly. ND entry resources are key resources on the switch. Monitoring the ND entry status effectively ensures proper running of the switch.

To improve the IPv6 forwarding performance, the switch saves ND entries using hash links. When multiple ND entries obtain the same key based on the hash algorithm, the ND entries cannot be saved. This is a hash conflict of ND entries.

When a hash conflict of ND entries occurs, the switch has available ND entry space but cannot save ND entries. The switch cannot forward IPv6 traffic matching the ND entries with a hash conflict.

You can enable the trap function for hash conflicts of ND entries to detect hash conflicts of ND entries promptly.

Example

# Enable the trap function for hash conflicts of ND entries.

<HUAWEI> system-view
[HUAWEI] nd trap hash-conflict enable