3com S7906E Installationsanweisungen

 

1-19 

Configure a static RP 

static-rp ipv6-rp-address 
[ acl6-number ] [ preferred ] 

Required 

No static RP by default 

 

To enable a static RP to work normally, you must perform this configuration on all routers in the IPv6 

PIM-SM domain and specify the same RP address.  

 

In an IPv6 PIM-SM domain, you can configure routers that intend to become the RP as C-RPs. The 

BSR collects the C-RP information by receiving the C-RP-Adv messages from C-RPs or auto-RP 

announcements from other routers and organizes the information into an RP-Set, which is flooded 

throughout the entire network. Then, the other routers in the network calculate the mappings between 

specific group ranges and the corresponding RPs based on the RP-Set. We recommend that you 

configure C-RPs on backbone routers. 

To guard against C-RP spoofing, you need to configure a legal C-RP address range and the range of 

IPv6 multicast groups to be served on the BSR. In addition, because every C-BSR has a chance to 

become the BSR, you need to configure the same filtering policy on all C-BSRs in the IPv6 PIM-SM 

domain.  

Follow these steps to configure a C-RP:  

To do... 

Use the command... 

Remarks 

Enter system view 

— 

Enter IPv6 PIM view 

pim ipv6 

— 

Configure an interface to be a 
C-RP  

c-rp ipv6-address 
[ group-policy acl6-number | 
priority priority | holdtime 
hold-interval | 
advertisement-interval 
adv-interval ] * 

Required 

No C-RPs are configured by 
default. 

Configure a legal C-RP 
address range and the range of 
IPv6 multicast groups to be 
served 

crp-policy acl6-number 

Optional 

No restrictions by default 

 

z 

When configuring a C-RP, ensure a relatively large bandwidth between this C-RP and the other 

devices in the IPv6 PIM-SM domain.  

z 

An RP can serve multiple IPv6 multicast groups or all IPv6 multicast groups. Only one RP can 

forward IPv6 multicast traffic for an IPv6 multicast group at a moment.