H3C S5600 Series Operation Manual page 1218

Operation Manual – IPv6 Management
H3C S5600 Series Ethernet Switches
Router advertisement (RA) message
Redirect message
Note:
H3C S5600 Series Ethernet Switches do not support the RS, RA, or Redirect
message.
Of the above mentioned IPv6 NDP functions, H3C S5600 Series Ethernet Switches
support 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