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Configuring IPv6 ND suppression
The ND suppression feature enables a device to directly answer ND requests by using ND
suppression entries. The device generates ND suppression entries based on dynamic ND entries
that it learns. This feature is typically configured on the PEs connected to base stations in an L2VPN
that provides access to an L3VPN network.
You can also configure the ND suppression push feature to push ND suppression entries at intervals
by advertising NA messages.
Figure 91 sh
ows a typical application scenario. ND suppression is enabled on the PE that connects
to the base station. The PE generates ND suppression entries for the base station, PE-agg 1, and
PE-agg 2, and it directly replies subsequent ND requests for these devices.
Figure 91 Typical application
To configure the IPv6 ND suppression feature:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Configure a cross-connect
group and enter its view.
xconnect-group
group-name
By default, no cross-connect
groups exist.
For more information about the
command, see MPLS Command
Reference.
3. Configure a cross-connect
and enter it view.
connection
connection-name
By default, no cross-connects
exist.
For more information about the
command, see MPLS Command
Reference.
4. Enable IPv6 ND
suppression.
ipv6 nd suppression enable
By default, the IPv6 ND
suppression feature is disabled.
5. Quit cross-connect view.
quit
N/A
6. Quit cross-connect group
view.
quit
N/A
7. Enable the suppression push
feature and set a push
ipv6 nd suppression push
interval
interval
By default, the ND suppression
push feature is disabled.
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