Switch 7700 Configuration Guide

134 CHAPTER 6: MULTICAST PROTOCOL
Once enabled , PIM-DM cannot be enabled on the same interface.
Configure the Interface Hello Message Interval
Generally, PIM-SM advertises Hello messages periodically on the interface enabled
with it to detect PIM neighbors and discover which router is the Designated Router
(DR).
Perform the following configuration in VLAN interface view.
By default, the hello message interval is 30 seconds. Users can configure the value
according to different network environments.
This configuration can be performed only after the PIM (PIM-DM or PIM-SM) is
enabled in VLAN interface view.
Set the PIM-SM Domain Border
After the PIM-SM domain border is configured, bootstrap messages cannot cross
the border in any direction. In this way, the PIM-SM domain can be split.
Perform the following configuration in VLAN interface view.
By default, no domain border is set. After this configuration is performed, a
bootstrap message cannot cross the border but other PIM packets can. This
configuration can effectively divide a network into domains using different BSRs.
CAUTION: This command cannot create a multicast packet forwarding border but
only a PIM bootstrap message border.
Enter PIM View
Global parameters of PIM should be configured in PIM view.
Perform the following configuration in system view.
Tab le 24 Configure the Interface Hello Message Interval
Operation Command
Configure the interface hello
message interval
pim timer hello seconds
Restore the interval to the
default value
undo pim timer hello
Tab le 25 Set the PIM-SM Domain Border
Operation Command
Set the PIM-SM domain
border
pim bsr-boundary
Remove the PIM-SM domain
border configured
undo pim bsr-boundary
Tab le 26 Enter PIM View
Operation Command
Enter PIM view pim
Back to system view undo pim