
576
Example:
Configure PIM-DM hello interval on interface vlan1.
Switch (Config)#interface vlan1
Switch(Config-if-Vlan1)#ip pim hello-interval 20
16.2.3.3 ip pim state-refresh origination-interval
Command: ip pim state-refresh origination-interval <interval>
no ip pim state-refresh origination-interval
Function:
Configure transmission interval of state-refresh message on interface. The “
no
ip pim state-refresh origination-interval
” command restores default value.
Parameter:
<
interval
> packet transmission interval value is from 4s to 100s.
Default:
60s
Usage Guide:
The first-hop router periodically transmits stat-refresh messages to
maintain PIM-DM list items of all the downstream routers. The command can modify
origination interval of state-refresh messages. Usually do not modify relevant timer
interval.
Example:
Configure transmission interval
of state-refresh message
on interface vlan1 to
90s.
Switch (Config-if-Vlan1)#ip pim state-refresh origination-interval 90
16.2.4 PIM-DM Configuration Examples
As shown in the following figure, add the Ethernet interfaces of Switch A and
Switch B to corresponding vlan, and enable PIM-DM Protocol on each vlan interface.
Fig 16-1 PIM-DM Typical Environment
The configuration procedure for SwitchA and SwitchB is as follows:
(1) Configure SwitchA:
Switch (Config)#ip pim multicast-routing
Switch (Config)#interface vlan 1
SwitchA
SwitchB
Vlan 2
Vlan 1
Vlan 2
vlan 1