Configuring The Time Intervals For Ports To Send Hello Packets; Entering The Pim View - 3Com 8800 Configuration Manual

3Com Switch 8800 Configuration Guide

28.2.3 Configuring the Time Intervals for Ports to Send Hello Packets

When protocol independent multicast (PIM) protocol is enabled for a port, the port
sends Hello packets periodically. The time intervals to send Hello packets vary with the
bandwidth and type of the connected networks.
Perform the following configuration in VLAN interface view.
Table 28-2 Configure the time intervals for ports to send Hello packets
Configure the time intervals for ports to send
Hello packets
Restore the default values of the time intervals
You can configure different time intervals according to the actual networks. By default,
the time interval for sending Hello packets is 30 seconds. In general, you need not
modify the parameter seconds.
Note:
When you configure the time interval for a port to send Hello packets, the pim neighbor
hold-time value automatically turns into 3.5 times the time interval value. Therefore you
need not configure a value for pim neighbor hold-time.
The time interval can be configured only after the PIM protocol such as protocol
independent multicast-dense mode (PIM-DM) protocol or protocol independent
multicast-sparse mode (PIM-SM) protocol is enabled in VLAN interface view.

28.2.4 Entering the PIM View

Global parameters of PIM should be configured in PIM view.
Perform the following configuration in system view.
Table 28-3 Entering PIM view
Enter PIM view
Back to system view
Using undo pim command, you can clear the configuration in PIM view, and back to
system view.
Operation
Operation
28-4
Chapter 28 PIM-DM Configuration
Command
pim timer hello seconds
undo pim timer hello
Command
pim
undo pim