3com S7906E Manuel De Montage

 

1-27 

As for whether the information from an IPv6 multicast source is delivered to the receivers based on the 

IPv6 PIM-SSM model or the IPv6 PIM-SM model, this depends on whether the group address in the (S, 

G) channel subscribed by the receivers falls in the IPv6 SSM group range. All IPv6 PIM-SM-enabled 

interfaces assume that IPv6 multicast groups within this address range are using the IPv6 SSM model. 

Perform the following configuration on all routers in the IPv6 PIM-SM domain. 

Follow these steps to configure the IPv6 SSM group range:  

To do... 

Use the command... 

Remarks 

Enter system view 

— 

Enter IPv6 PIM view 

pim ipv6 

— 

Configure the IPv6 SSM group 
range 

ssm-policy acl6-number 

Optional 

FF3x::/32 by default, here “x” 
refers to any legal group scope. 

 

z 

Make sure that the same IPv6 SSM group range is configured on all routers in the entire domain. 

Otherwise, IPv6 multicast data cannot be delivered through the IPv6 SSM model.  

z 

When a member of an IPv6 multicast group in the IPv6 SSM group range sends an MLDv1 report 

message, the device does not trigger a (*, G) join.