3Com Switch 7750 Configuration Guide

PIM-SM Configuration 473
c
CAUTION:
■ Only one candidate BSR can be configured on a Layer 3 switch. The BSR
configuration on another interface will replace the former configuration.
■ You are recommended to configure both the candidate BSR and candidate RP
on the Layer 3 switch in the backbone.
■ 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.
■ You can configure basic ACLs to filter related multicast IP addresses and control
the range of multicast groups that RP serves.
■ If you use static RPs, all routers in the PIM domain must adopt the same
configuration.
■ If the configured static RP address is the address of an UP interface on the local
switch, the switch will serve as RP.
Configure candidate BSRs c-bsr interface-type
interface-number
hash-mask-len [ priority ]
Optional
By default, candidate BSRs are
not set for the switch and the
value of priority is 0.
Configure candidate RPs c-rp interface-type
interface-number
[ group-policy acl-number |
priority priority ]*
Optional
■ You can configure to filter
the IP addresses of some
multicast groups in ACL.
■ By default, candidate RPs
are not set for the switch
and the value of priority is
0.
Configure static RPs static-rp rp-address
[ acl-number ] [ preferred ]
Optional
■ You can configure to filter
the IP addresses of some
multicast groups in ACL.
■ By default, static RPs are
not set for the switch.
Limit the range of valid BSRs bsr-policy acl-number Optional
■ You can configure to filter
the IP addresses of some
multicast groups in ACL.
■ By default, the range of
valid BSRs is not set for the
switch.
Limit the range of valid C-RPs crp-policy acl-number Optional
■ You can configure to filter
the IP addresses of some
multicast groups in ACL.
■ By default, the range of
valid C-RPs is not set for
the switch.
Table 379 Configure BSR/RP
Operation Command Description