Cisco Systems 1000 Series Manual De Usuario

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MLDP with PIM-based MVPN supports MLDP coexistence with a PIM-based MVPN deployment. 
Using this feature, you can gradually introduce MLDP in an existing PIM-based MVPN environment, 
facilitating phased migration towards a complete LSM-based MVPN network infrastructure. If both the 
MLDP-based MVPN and GRE-based MVPN are configured, MDT selects PIM based MVPN by default. 
Configure the precedence for MLDP MVPN and PIM based MVPN using the mdt preference option1 
option2 command. This example sets MLDP MVPN precedence over PIM based MVPN:

Router(config-vrf)# mdt preference MLDP pim

MLDP supports load balancing of multicast traffic with Equal Cost Multipath (ECMP) links. For Load 
balancing to work with MLDP, use the disable mpls MLDP forwarding recursive command, which is 
enabled by default. Also, ensure that the mpls MLDP path multipath command is enabled for load 
balancing to function as expected.

Configure multiple root nodes in the network using the mdt default mpls MLDP ip_address command. 
The control plane builds a corresponding tree with root at the configured node to enable efficient 
forwarding. A node in the network selects the nearest root for optimal bandwidth usage. Also, in case a 
root node is unreachable (due to link failure, or router crash), the node switches to the next available root.

This example describes the root node redundancy configuration:

Router(config)# ip vrf blue1

Router(config-if)# rd 10:3

Router(config-if)# vpn id 10:3

Router(config-vrf)# route-target import 10:3

 [range 

{access-list-number | 

access-list-name}]

Router(config)# ip multicast mpls 

traffic-eng

Enables IP multicast traffic on a tail end router enabled 
with MPLS TE P2MP functionality.

Router(config)# mpls MLDP path 

traffic-en

Configures MLDP to use traffic-eng tunnels.

Router(config)# end

Closes the configuration session.