HP MSR4080 Configuration Guide

307
•
Filter mode—Router keeps tracing the Include or Exclude state.
•
List of sources—Router keeps tracing the newly added or deleted IPv6 multicast source.
•
Timers—Filter timers, which include the time that the router waits before switching to the
Include mode after an IPv6 multicast address times out, and source timers for source recording.
MLD SSM mapping
An MLDv2 host can explicitly specify multicast sources in its MLDv2 reports. From the reports, the
MLD router can obtain the multicast source addresses and directly provide the SSM service.
However, an MLDv1 host cannot specify multicast sources in its MLDv1 reports.
The MLD SSM mapping feature enables the MLD router to provide SSM support for MLDv1 receiver
host. The router translates (*, G) in MLDv1 reports into (G, INCLUDE, (S1, S2...)) based on the
configured MLD SSM mappings.
Figure 86 Network diagram
As shown in Figure 86, Host A and Host B on the IPv6 SSM network run MLDv1, and Host C runs
MLDv2. To provide the SSM service for Host A and Host B, you must configure the MLD SSM
mapping feature on Router A.
After MLD SSM mappings are configured, Router A checks the IPv6 multicast group address G
carried in the message, and performs the following operations:
•
If G is not in the IPv6 SSM group range, Router A provides the ASM service.
•
If G is in the IPv6 SSM group range but does not match any MLD SSM mapping, Router A drops
the report.
•
If G is in the IPv6 SSM group range and matches MLD SSM mappings, Router A translates (*,
G) in the report to (G, INCLUDE, (S1, S2...)) to provide SSM services.
NOTE:
The MLD SSM mapping feature does not process MLDv2 reports.
For more information about the IPv6 SSM group ranges, see "Configuring IPv6 PIM."
MLDv1 report
MLDv2 report
Router A
Querier
Host A (MLDv1)
Receiver
Host B (MLDv1)
Receiver
Host C (MLDv2)
Receiver
IPv6 SSM

HP MSR4080 Specifications

General

Brand	HP
Model	MSR4080
Category	Network Router
Language	English