The Neighbor Discovery (ND) protocol for IPv6 is defined in RFC4861. The neighbor discovery protocol uses ICMPv6 messages to determine the link-layer addresses of nodes residing on the same local link, to locate neighboring routers, to learn certain link and address configuration information, and to track the reachability of neighbors.
On the S- and K-Series, you can configure the IPv6 prefixes to include in IPv6 Neighbor Discovery (ND) router advertisements for the interface.
This example sets the IPv6 prefix ba10:1100:aa11/48 to be included in the ND router advertisements for VLAN 50:
System(su-config)->interface vlan 50 System(su-config-intf-vlan.0.50)->ipv6 nd prefix ba10:1100:aa11/48 System(su-config-intf-vlan.0.50)->