Command Manual – Multicast Protocol
Quidway S8500 Series Routing Switches Chapter 5 PIM Configuration Commands
Huawei Technologies Proprietary
5-18
Related command: multicast routing-enable.
Example
# Enable PIM-SM on VLAN-interface10.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway]interface vlan-interface 10
[Quidway-Vlan-interface10] pim sm
5.1.19 pim timer hello
Syntax
pim timer hello seconds
undo pim timer hello
View
VLAN interface view
Parameter
seconds: Time interval for a port to send Hello packets, in the range of 1 to 18,000 (in
seconds). By default, the time interval is 30 seconds.
Description
Use the pim timer hello command to configure the time interval for a port to send Hello
packets.
Use the undo pim timer hello command to restore the default time interval.
After the protocol independent multicast-sparse mode (PIM-SM) protocol is enabled for
a port, a switch sends Hello packets periodically to all network devices supporting
protocol independent multicast (PIM) to find its neighbors. If a port receives the Hello
packets, it indicates the port has a neighbor network device supporting PIM, and the
port adds the neighbor to its port neighbor list. If a port does not receive the Hello
packets from the existing neighbors in its neighbor list in the specified time, the system
assumes the neighbor has left the multicast group.
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