ipv6 nd collect host enable (Bridge domain view)

Function

The ipv6 nd collect host enable command enables a device to flood ND entries or proxy ND entries through EVPN routes.

The undo ipv6 nd collect host enable command disables a device from flooding ND entries or proxy ND entries through EVPN routes.

By default, a device is not enabled to flood ND entries or proxy ND entries through EVPN routes.

Format

ipv6 nd collect host enable

undo ipv6 nd collect host enable

Parameters

None

Views

Bridge domain view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
nd	write

Usage Guidelines

Usage Scenario

proxy ND or converts multicast streams to unicast streams. If not, the device forwards the NS message based on the original process.

After NS multicast suppression is enabled,In Layer 2 interworking scenarios, run the ipv6 nd collect host enable command in the BD view to enable the flooding of proxy ND entries generated on a device through EVPN routes.

When another device receives the flooded ND entries or proxy ND entries, a proxy ND table is generated on the local. In this manner, when the device receives NS messages again, it searches the local proxy ND table first. If a matching entry exists, the device simply implements proxy ND or converts multicast streams to unicast streams.

Prerequisites

In Layer 2 interworking scenarios, NS multicast suppression has been enabled using the ipv6 nd multicast-suppress { proxy-reply [ unknown-options-unicast ] | unicast-forward } [ mismatch-discard ] enable command in the BD view.
In Layer 3 interworking scenarios, NS multicast suppression has been enabled using the ipv6 nd multicast-suppress { proxy-reply [ unknown-options-unicast ] | unicast-forward } [ mismatch-discard ] enable command in the BD view and then IPv6 is enabled using the ipv6 enable command in the VBDIF interface view.

Example

# Enable the flooding of proxy ND entries generated on a device through EVPN routes in a Layer 2 interworking scenario.

<HUAWEI> system-view
[~HUAWEI] bridge-domain 10
[*HUAWEI-bd10] ipv6 nd multicast-suppress proxy-reply enable
[*HUAWEI-bd10] ipv6 nd collect host enable