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DES-7200 Configuration Guide Chapter 5 PIM-DM
Configuration
5-3
5.2.2 Enabling PIM-DM
PIM-DM should be enabled on individual interface. Once PIM-DM is enabled on
an interface of a device, the device can exchange PIM-DM control messages with
other devices, maintain and update the multicast route table and forward
multicast messages.
To configure PIM-DM on an interface, execute the following commands in the
interface configuration mode:
Command Function
DES-7200(config-if)# ip pim
dense-mode
Enable the PIM-DM protocol on the
interface.
DES-7200(config-if)# no ip pim
dense-mode
Disable the PIM-DM protocol on the
interface.
The following example shows how to enable PIM-DM on GigabitEthernet 4/3.
DES-7200(config)# ip multicast-routing
DES-7200(config)# interface gigabitEthernet 4/3
DES-7200(config-if)# ip address 192.168.194.2 255.255.255.0
DES-7200(config-if)# ip pim dense-mode
Note
Enabling PIM-DM will take effect on an interface only when the multicast routing
is enabled in the global configuration mode.
When this command is configured, if the “Failed to enable PIM-DM on
<interface name>, resource temporarily unavailable, please try again” occurs,
retry to configure this command.
When this command is configured, if the “PIM-DM Configure failed! VIF limit
exceeded in NSM!!!” appears, It indicates current allowed interface
configuration exceeds the upper limit of the multicast interfaces. Please remove
some unnecessary PIM-SM or DVMRP interface.
It is not recommended to configure different IPv4 multicast routing protocols on
different interfaces of a switch or router.
If the interface is of tunnel-type, only 4Over4 configuration tunnel, 4Over4GRE
tunnel, 4Over6 configuration tunnel and 4Over6 GRE tunnel support the IPv4
multicasting at the moment. The multicasting can be also enabled on other
tunnel interfaces that doe not support the multicasting, but no error message
will be displayed and no multicast packets will be received and sent.
The multicast tunnel can be created on the Ethernet interface only, nested
tunnel and multicast data Qos/ACL are not supported.
5.2.3 Setting the Interval of Sending the Hello Message
After the PIM-DM is enabled on an interface, the interface will send the Hello
message to the interfaces of adjacent devices at an interval. You can modify the
interval according to the real network circumstances.
To configure the interval of sending the Hello message, use the following
command in the interface configuration mode:
Command Function
DES-7200(config-if）# ip
pimquery-interval interval-seconds
Set the interval of sending the Hello
message on the interface.
interval-seconds: in the range 1 to 65535
DES-7200(config-if）# no ip
pimquery-interval
Restore the interval of sending the Hello
message on the interface to the default
value.