Operation Manual – Multicast
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 7 PIM Configuration
7-16
Caution:
z Only one candidate BSR can be configured on a Layer 3 switch. The BSR
configuration on another interface will replace the former configuration.
z You are recommended to configure both the candidate BSR and candidate RP on
the Layer 3 switch in the backbone.
z If the range of multicast groups that RP serves is not specified when RP is
configured, the RP serves all multicast groups. Otherwise, the RP serves the
multicast groups within the specified range.
z You can configure basic ACLs to filter related multicast IP addresses and control the
range of multicast groups that RP serves.
z If you use static RPs, all routers in the PIM domain must adopt the same
configuration.
z If the configured static RP address is the address of an UP interface on the local
switch, the switch will serve as RP.
z Static RPs do not take effect when the RP generated by the BSR mechanism takes
effect.
z The PIM protocol does not need to be enabled on the interface of static RPs.
z The limit on the range of valid BSRs is to prevent the valid BSRs in the network from
being replaced maliciously. The other BSR information except the range will not be
received by the Layer 3 switch, and thus the security of BSRs in the network is
protected.
z The limit on the range of C-RPs is to avoid C-RP cheating. You can limit the range of
valid C-RPs and limit the range of multicast groups that each C-RP serves.
7.4.3 Configuring PIM-SM Domain Boundary
Table 7-9 Configure PIM-SM domain boundary
Operation Command Description
Enter system view system-view —
Enable the multicast
routing protocol
multicast
routing-enable
Required
Enter VLAN interface
view
interface Vlan-interface
interface-number
—
Enable PIM-SM on the
current interface
pim sm
Required
Configure the PIM
protocol type on the
interface.
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