Mld Proxying; Ipv6 Multicast Access Control - HP VSR1000 Configuration Manual

MLD proxying

As shown in
multicast routing protocols, such as IPv6 PIM, on edge devices. Instead, you can configure MLD
proxying on these devices. With MLD proxying configured, the edge device acts as an MLD proxy:
•
For the upstream MLD querier, the MLD proxy device acts as a host.
•
For the downstream receiver hosts, the MLD proxy device acts as an MLD querier.
Figure 73 Network diagram
Proxy
Router B
Receiver
Host A
The following interfaces are defined in MLD proxying:
•
Host interface—An interface that is in the direction toward the root of the multicast forwarding
tree. A host interface acts as a receiver host that is running MLD. MLD proxying must be
enabled on this interface. This interface is also called the "proxy interface."
•
Router interface—An interface that is in the direction toward the leaf of the multicast
forwarding tree. A router interface acts as a router that is running MLD. MLD must be configured
on this interface.
An MLD proxy device maintains a group membership database, which stores the group
memberships on all the router interfaces. The host interfaces and router interfaces perform actions
based on this membership database.
•
The host interfaces respond to queries according to the membership database or sends
join/done messages when the database changes.
•
The router interfaces participate in the querier election, send queries, and maintain
memberships based on received MLD reports.

IPv6 multicast access control

IPv6 multicast allows users to join any IPv6 multicast group in order to receive IPv6 multicast data. In
some carrier's services, such as IPTV, users are authenticated and authorized before accessing
IPv6 multicast data.
IPv6 multicast access control provides a mechanism to control a user's access to IPv6 multicast data
by limiting the IPv6 multicast groups that the user can join. When a user logs in, the BRAS
downloads the access authorization profile of the user. Based on the authorization profile, the BRAS
accepts or denies the MLD reports from the user to join IPv6 multicast groups.
Figure 73, in a simple tree-shaped topology, it is not necessary to configure IPv6
Querier
Router A
Ethernet
Host B
Query from Router A
Query from Router B
Report from Host
IPv6 PIM domain
Receiver
Host C
Report from Router B
Host interface
Router interface
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