Display And Debug Pim-Dm - 3Com 7700 Configuration Manual

Display and Debug
PIM-DM
Perform the following configuration in VLAN interface view.
Table 20 Enable PIM-DM
Operation
Enable PIM-DM on an
interface
Disable PIM-DM on an
interface
It's recommended you configure PIM-DM on all interfaces in non-special cases.
This configuration is effective only after the multicast routing is enabled in system
view.
Once enabled PIM-DM on an interface, PIM-SM cannot be enabled on the same
interface and vice versa.
Configure the Interface Hello Message Interval
After PIM is enabled on an interface, it will send Hello messages periodically on the
interface. The interval at which Hello messages are sent can be modified according
to the bandwidth and type of the network connected to the interface.
Perform the following configuration in VLAN interface view.
Table 21 Configure Hello Message Interval on an Interface
Operation
Configure the hello message
interval on an interface
Restore the interval to the default
value
The default interval is 30 seconds. You can configure the value according to
different network environments. Generally, this parameter does not need to be
modified.
This configuration can be performed only after PIM (PIM-DM or PIM-SM) is
enabled in VLAN interface view.
After the above configuration, execute display command in all views to display the
running of PIM-DM configuration, and to verify the effect of the configuration.
Execute debugging command in user view for the debugging of PIM-DM.
Table 22 Display and Debug PIM-DM
Operation
Display the PIM multicast routing
table
Display the PIM interface
information
Command
pim dm
undo pim dm
Command
pim timer hello seconds
undo pim timer hello
Command
display pim routing-table [ { { *g [ group-address [
mask { mask-length | mask } ] ] | **rp [ rp-address [
mask { mask-length | mask } ] ] } | { group-address [ mask
{ mask-length | mask } ] | source-address [ mask {
mask-length | mask } ] } * } | incoming-interface {
interface-type interface-num | interface-name | null } | {
dense-mode | sparse-mode } ] *
display pim interface [ interface-type interface-number
]
PIM-DM Configuration 129