3Com Switch 7750 Configuration Guide Guide

PIM-SM Configuration 431
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.
■ Static RPs do not take effect until the RP generated by the BSR mechanism
takes effect.
■ The PIM protocol need not be enabled on the interface of static RPs.
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 ]
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 344 Configure BSR/RP
Operation Command Description