3com 3031 Instruccion De Instalación
622
C
HAPTER
48: PIM C
ONFIGURATION
By default, Hello messages are sent with an interval of 30 seconds.
Configuring Multicast
Source (Group) Policy
Refer to section “PIM-DM Configuration”on page 616.
Configuring PIM
Neighbor Policy
Refer to section “PIM-DM Configuration”on page 616.
Limiting the Number of
PIM Neighbors on an
Interface
Refer to section “PIM-DM Configuration”on page 616.
Configuring RP Register
Policy
In the PIM-SM network, the register packet filtering mechanism helps an RP to
decide the groups a source sends packets to, namely the packets to receive and
forward.
decide the groups a source sends packets to, namely the packets to receive and
forward.
Perform the following configuration in PIM view.
If the entry (S, G) of a source group is denied or not defined by the ACL, or there is
no ACL, the RP will send RegisterStop information to the DR to stop the
registration of this multicast data stream.
no ACL, the RP will send RegisterStop information to the DR to stop the
registration of this multicast data stream.
CAUTION: Only the register packets matching the ACL
permit
clause will be
accepted by the RP. Specifying an undefined ACL will cause the RP to deny all
register packets.
register packets.
Configuring the
Threshold to Switch
from RPT to SPT
The PIM-SM routers uses the shared tree to forward multicast data packets initially.
If the traffic rate exceeds the specified threshold, the last hop router the packet
passes will initiate the switch from the shared tree to the shortest path tree.
If the traffic rate exceeds the specified threshold, the last hop router the packet
passes will initiate the switch from the shared tree to the shortest path tree.
Perform the following configuration in PIM view.
Restore the default value of the
interval
interval
undo pim timer hello
Table 720 Configuring Hello message interval
Operation
Command
Table 721 Configuring RP register policy
Operation
Command
Configure RP register policy on the
packets from DR
packets from DR
register-policy acl-number
Cancel the configured policys
undo register-policy
Table 722 Configuring the threshold to switch from the RPT to the SPT
Operation
Command
Set the threshold to switch from the
RPT to the SPT
RPT to the SPT
spt-switch-threshold { traffic-rate |
infinity } [ group-policy acl-number ]
Restore the default configuration
undo spt-switch-threshold { traffic-rate
| infinity } [ group-policy acl-number ]