Configuring Ndp - Zte ZXR10 5900E Series User Manual

St- Command
ep
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ZXR10(config-if-vlanX)#
lag
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ZXR10(config-if-vlanX)#
3
ZXR10(config-if-vlanX)#
>/<prefix-length>[[<Valid-lifetime><preferred-lifetie
m>]{off-link| no-autoconfig|}|]
A node sends NS messages and gets link layer from destination
node to finish address resolution. NS message is a multicast
message. Its multicast address is request node multicast ad-
dress of destination node.
NS messages can be used to judge whether there are multiple
nodes using the same IPv6 address.
� Neighbor Advertisement (NA) messages
(NA) message is used to reply (NS) message. A destination
node replies the request sender with link layer address in this
packet. It is a unicast packet. For both communication sides,
they can use a couple of NS and NA messages to get link layer
address from the peer. It is because link layer address of the
sender is included in NS message.
� Redirect messages
A router sends a Redirect message to inform the host that there
is a better next hop to destination.
Other functions of NDP are as follows:
� Link-layer address change
A node may have multiple interfaces for the same network. If
the node knows that its link-layer address is changed, it can
send some multicast groups to notify other nodes of its address
change.
� Ingress load balance
A node with repeating interfaces hopes multiple interfaces that
are on the same link to balance the flow loads. For exam-
ple, a network drive may be a logical interface that represents
multiple network interfaces and it has multiple link layer ad-
dresses. Load balance allows the router to omit the source
link layer address in router reply packet. Then load balance
forces the neighbor to use neighbor request packet to learn
link layer address of the router. In neighbor reply packets sent
by router, different link layer addresses are included according
to the node that sends request.

Configuring NDP

ipv6 nd managed-config-f
ipv6 nd other-config-flag
ipv6 nd prefix <ipv6-prefix
Confidential and Proprietary Information of ZTE CORPORATION
Chapter 2 IPv6 Neighbor Discovery Protocol
Function
This configures management
address configuration field
flag in RA message.
This configures other stateful
configuration flag field in RA
message.
This configures prefix option
in RA message.
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