Chapter 11 IPv6 Neighbor Table
XGS2220 Series User’s Guide
127
C
HAPTER
11
IPv6 Neighbor Table
11.1 IPv6 Neighbor Table Overview
This chapter introduces the IPv6 neighbor table.
An IPv6 host is required to have a neighbor table. If there is an address to be resolved or verified, the
Switch sends out a neighbor solicitation message. When the Switch receives a neighbor advertisement
in response, it stores the neighbor’s link-layer address in the neighbor table. You can also manually
create a static IPv6 neighbor entry using the
SYSTEM
>
IPv6
>
IPv6 Neighbor Setup
screen.
When the Switch needs to send a packet, it first consults other table to determine the next hop. Once
the next hop IPv6 address is known, the Switch looks into the neighbor table to get the link-layer address
and sends the packet when the neighbor is reachable. If the Switch cannot find an entry in the
neighbor table or the state for the neighbor is not reachable, it starts the address resolution process. This
helps reduce the number of IPv6 solicitation and advertisement messages.
11.2 Viewing the IPv6 Neighbor Table
Use this screen to view IPv6 neighbor information on the Switch. Click
MONITOR
>
IPv6
Neighbor Table
in
the navigation panel to display the screen as shown.
Figure 90
MONITOR > IPv6 Neighbor Table
