624
range from 1s to 18724s.
Default:
Default interval of periodly transmitted PIM-DM hello message as 30s.
Command Mode:
Interface Configuration Mode.
Usage Guide:
Hello message makes PIM-DM switch mutual location, and ensures
neighborship. PIM-DM switch announces existence itself by periodly transmitting hello
messages to neighbors. If it doesn’t receive hello messages from neighbors in regulation
time, it confirms that the neighbors were lost. Configuration time is not more than
neighbor overtime.
Example:
Configure PIM-DM hello interval on interface vlan1.
Switch (Config)#interface vlan1
Switch(Config-if-Vlan1)#ip pim hello-interval 20
17.2.3.3 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 periodly transmits stat-refresh messages to maintain
PIM-DM list ltems 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
Switch (Config-if-Vlan1)#
17.2.4 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.
