H3C S3100-52P Operation Manual page 902

Operation Manual – IPv6 Management
H3C S3100-52P Ethernet Switch
Router advertisement (RA) message
Redirect message
Note:
H3C S3100-52P Ethernet Switch does not support the RS, RA, or Redirect
message.
Of the above mentioned IPv6 NDP functions, H3C S3100-52P Ethernet Switch
supports the following three functions: address resolution, neighbor unreachability
detection, and duplicate address detection. The subsequent sections present a
detailed description of these three functions and relevant configuration.
The NDP mainly provides the following functions:
I. Address resolution
Similar to the ARP function in IPv4, a node acquires the link-layer address of neighbor
nodes on the same link through NS and NA messages.
acquires the link-layer address of node B.
Figure 1-3 Address resolution
The address resolution procedure is as follows:
ICMPv6 message
Used to respond to a router solicitation
message
With the RA message suppression
disabled, the router regularly sends a
router advertisement message
containing information such as address
prefix and flag bits.
When a certain condition is satisfied, the
default gateway sends a redirect
message to the source host so that the
host can reselect a correct next hop
router to forward packets.
Figure 1-3
1-8
Chapter 1 IPv6 Configuration
Function
shows how node A