3com S7906E Guide De Référence

 

1-44 

group-policy acl6-number: Specifies a basic IPv6 ACL number, in the range of 2000 to 2999. If you do 

not include this option in your command, the configuration will apply on all IPv6 multicast groups.  

order order-value: Specifies the order of the IPv6 ACL in the group-policy list, where order-value has an 

effective range of 1 to (the largest order value in the existing group-policy list + 1), but the value range 

should not include the original order value of the IPv6 ACL in the group-policy list. If you have assigned 

an  order-value to a certain IPv6 ACL, do not specify the same order-value for another IPv6 ACL; 

otherwise the system will give error information. If you do not specify an order-value, the order value of 

the IPv6 ACL will remain the same in the group-policy list.  

Use the spt-switch-threshold infinity command to configure disabling the SPT switchover.  

Use the undo spt-switch-threshold command to restore the default configuration. 

By default, the device switches to the SPT immediately after it receives the first IPv6 multicast packet.  

Note that:  

z 

To adjust the order of an IPv6 ACL that already exists in the group-policy list, you can use the 

acl6-number argument to specify this IPv6 ACL and set its order-value. This will insert the IPv6 

ACL to the position of order-value in the group-policy list. The order of the other existing IPv6 ACLs 

in the group-policy list will remain unchanged.  

z 

To use an IPv6 ACL that does not exist in the group-policy list, you can use the acl6-number 

argument to specify an IPv6 ACL and set its order-value. This will insert the IPv6 ACL to the 

position of order-value in the group-policy list. If you do not include the order order-value option in 

your command, the ACL will be appended to the end of the group-policy list.  

z 

If you use this command multiple times on the same IPv6 multicast group, the first traffic rate 

configuration matched in sequence will take effect.  

z 

For an S7900E series Ethernet switch, once an IPv6 multicast forwarding entry is created, 

subsequent IPv6 multicast data will not be encapsulated in register messages before being 

forwarded even if a register outgoing interface is available. Therefore, to avoid forwarding failure, 

do not use the spt-switch-threshold  infinity command on a switch that may become an RP 

(namely, a static RP or a C-RP).  

# Disable SPT switchover on a switch that will never become an RP.  

<Sysname> system-view 

[Sysname] pim ipv6 

[Sysname-pim6] spt-switch-threshold infinity 

ssm-policy acl6-number