3com DUA1750-2BAA01 Manual De Usuario

3Com Switch 8800 Configuration Guide 

Chapter 28  PIM-DM Configuration

 

28-3 

When the pruned downstream node needs to be restored to the forwarding state, the 

node will send a graft packet to inform the upstream node. 

1) 

PIM-DM basic configuration includes: 

z 

Enabling multicast 

z 

Enabling PIM-DM  

2) 

PIM-DM advanced configuration includes: 

z 

Configuring the time interval for ports to send Hello packets 

z 

Entering the PIM view 

z 

Configuring filtering of multicast source/group 

z 

Configuring filtering of PIM neighbor 

z 

Configuring the maximum number of PIM neighbor on an interface 

z 

Clearing PIM neighbors 

Refer to Chapter 26  Common Multicast Configuration. 

PIM-DM needs to be enabled in configuration of all interfaces. 

After PIM-DM is enabled on an interface, it will send PIM Hello messages periodically 

and process protocol packets sent by PIM neighbors. 

Perform the following configuration in VLAN interface view. 

Table 28-1 Enabling PIM-DM  

Enable PIM-DM on an interface 

pim dm 

Disable PIM-DM on an interface 

 

It’s recommended to 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.