Reference Guide

IPv6 Addressing | 487
Advertise Neighbor Prefixes
Specify which IPv6 prefixes are include in Neighbor Advertisements. By default, all prefixes configured as
addresses on the interface are advertised. You can control the advertise parameters per prefix; the
default
keyword can be used to use the default parameters for all prefixes.
QoS for IPv6
IPv6 QoS is supported on platforms: c e s
FTOS IPv6 supports quality of service based on DSCP field. You can configure FTOS to honor the DSCP
value on incoming routed traffic and forward the packets with the same value.
Refer to Chapter 44, Quality of Service for details. Refer also to the Honor DSCP values on ingress
packets in the QoS chapter for information relating to the
trust diffserv command.
IPv6 Multicast
IPv6 Multicast is supported on platforms: c e s
FTOS supports the following protocols to implement IPv6 multicast routing:
• Multicast Listener Discovery Protocol (MLD). MLD on a multicast router sends out periodic general
MLD queries that the switch forwards through all ports in the VLAN. There are two versions of MLD:
MLD version 1 is based on version 2 of the Internet Group Management Protocol (IGMP) for IPv4,
and MLD version 2 is based on version 3 of the IGMP for IPv4. IPv6 multicast for FTOS supports
versions 1 and 2
• PIM-SM. Protocol-Independent Multicast-Sparse Mode (PIM-SM) is a multicast protocol in which
multicast receivers explicitly join to receive multicast traffic. The protocol uses a router as the root or
Rendezvous Point (RP) of the share tree distribution tree to distribute multicast traffic to a multicast
group. Messages to join the multicast group (Join messages) are sent towards the RP and data is sent
from senders to the RP so receivers can discover who are the senders and begin receiving traffic
destined to the multicast group.
Command Syntax Command Mode Purpose
ipv6 nd prefix {ipv6-address/prefix-length> | default}
[no-advertise] | [no-autoconfig] [no-rtr-address] [off-link]
[lifetime {valid | infinite} { preferred | infinite}]
INTERFACE Specify which IPv6 prefixes are
include in Neighbor
Advertisements.