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Figure 89 Typical application
To configure ND direct route advertisement:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Configure an L3VE interface
and enter its view.
interface ve-l3vpn
interface-number
By default, no L3VE interface is
configured on the device.
For more information about the
command, see MPLS Command
Reference.
3. Enable ND direct route
advertisement.
ipv6 nd route-direct advertise
Optional.
By default, ND direct route
advertisement is disabled.
Configuring path MTU discovery
Configuring the interface MTU
IPv6 routers do not support packet fragmentation. If the size of a packet exceeds the MTU of the
output interface, the router discards the packet and sends a packet too big message to the source
host. The source host fragments the packet according to the MTU. To avoid this situation, configure
a proper interface MTU.
To configure the interface MTU:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Configure the interface MTU.
ipv6 mtu
mtu-size
By default, no interface MTU is
configured.
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