cisco ccnp switch dumps

cisco ccnp switch dumps.A third address assignment method, SLAAC, allows the IPv6 network prefix and its length to be known when theThe third address assignment method is SLAAC, which allows device interfaces to obtain IPv6 addresses when the IPv6 network prefix and its length are not known. To understand how SLAAC works, it is necessary to recognize a new protocol unique to IPv6: the Neighbor Discovery Protocol (NDP).A new protocol unique to IPv6: the Neighbor Discovery Protocol (NDP)./NDP has many functions, as shown below.Discovery routers: Used to discover routers within a subnet. Discovery Prefix: Used to discover the IPv6 network prefix used for a particular link. Address autoconfiguration: Supports SLAAC, allowing device interfaces to automatically obtain configuration information for IPv6 addresses. Address Resolution: Equivalent to ARP for IPv4, used to resolve the link layer address of a device with a known IPv6 address. Determine Next Hop: Used to determine the next hop to a specified destination network.Neighbor Unreachability Detection (NUD): Used to determine if a neighboring device is reachable. Let's say the NUD function is used when determining whether the next-hop router is still available (and if not available, replacing it with an alternate router).Address Conflict Detection (DAD): When a node is ready to enable an IPv6 address, the DAD feature is used to detect whether another node already has that address. Redirection: Used to inform IPv6 nodes that there are also lower forwarding cost first-hop gateways available to deliver IPv6 packets to the destination network.The various features of NDP all depend on ICMP version 6 (ICMPv6). The following five new ICMPv6 messages are defined in the NDP specification.1.7 IPv6 Basics 91Router Request (RS) messages: sent from an IPv6 host to an IPv6 router to have the IPv6 router reply to a router announcement message. The source IP address of this message is either the IPv6 address assigned to the IPv6 device interface (NIC) or the unassigned IPv6 address ::/128 (if the host has not yet been assigned an IPv6 address); the destination IP address is the all-router IPv6 multicast address FF01::2/128o