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Configuring MX Series Router Cloud CPE Draft-Rosen Multicast VPN Services

This topic describes how to configure draft-rosen multicast VPNs in the cCPE environment. For this configuration, you need to configure PIM in sparse mode (PIM-SM) in the customer network. To ensure rendezvous point (RP) redundancy, BSR is enabled for RP election and failover. Alternatively, you can enable auto-RP instead of BSR. In the provider network, PIM sparse mode is used to establish a default multicast distribution tree (MDT), which connects all PE routers configured in the same VPN. Each VPN has one default MDT. The default MDT uses PIM Any Source Multicast. Initially, VPN multicast traffic is sent to every PE router in the VPN through the default MDT, including those PE routers that do not have receivers connected. If data MDT is configured (VRF in adjacent PE router), when the multicast traffic exceeds a traffic rate threshold, a data MDT is created. This MDT includes only PE routers with source or receivers of the attached multicast group. The provider network is transparent to customers, and the transition to cCPE has no impact on it.

For this configuration you will:

  1. Configure a bridge domain, an IRB interface, and a VLAN interface.
  2. Configure an additional unit on the loopback interface of the PE router. Assign an address from the VPN address space.
  3. Configure a VPN routing instance that includes the IRB interface and the loopback interface.
  4. Configure a bootstrap router and RP in the routing instance. The BSR and RP do not need to be configured in all routing instances of a VPN, and they do not need to reside in the same routing instance.
  5. Enable PIM version 2 on the IRB interface and the loopback interface.

Before you begin, make sure you have completed the steps for the cCPE common configuration. See Configuring the Common Configuration for MX Series Router Cloud CPE Services.

Then complete the following tasks to configure multicast VPNs for cCPE services:

  1. Configure PE1. See Configuring PE1 for MX Series Router Cloud CPE Draft-Rosen Multicast VPN Services.
  2. Configure PE2. See Configuring PE2 for MX Series Router Cloud CPE Draft-Rosen Multicast VPN Services.
 

Related Documentation

 

Modified: 2015-10-29

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