Mar 13, 2018 · Note: The combination of VRF, MPLS and MP-BGP ensures that the traffic from one VPN does not leak into the other VPN, while the same private IP address space can be used for the VPN sites. Using MPLS for forwarding packets in the provider’s backbone network brings another benefit in the form of traffic engineering (TE).
The Multicast in a VPN I section on contains the VPN configuration required for the provider multicast domain using PIM Any Source Multicast (ASM) with auto-discovery based on PIM or BGP auto-discovery (A/D), PIM used for the customer multicast signaling and PIM Source Specific Multicast (SSM) used for the S-PMSI creation. Request PDF | On Jan 1, 2012, E. Rosen and others published Multicast in MPLS/BGP IP VPNs | Find, read and cite all the research you need on ResearchGate However, to support multicast traceroute over an MPLS/BGP IP VPN according to the techniques described in this disclosure, the PE routers are configured to forward a multicast traceroute request Extranet Multicast in BGP/IP MPLS VPNs Abstract. Previous RFCs specify the procedures necessary to allow IP multicast traffic to travel from one site to another within a BGP/MPLS IP VPN (Virtual Private Network). However, it is sometimes desirable to allow multicast traffic whose source is in one VPN to be received by systems that are in Knowledge of Multi-Protocol BGP (MP-BGP) and RFC 4364, BGP/MPLS IP Virtual Private Networks (VPNs), is assumed throughout this example, as well as Protocol Independent Multicast (PIM), RFC 6513, Multicast in MPLS/BGP IP VPNs, and RFC 6514, BGP Encodings and Procedures for Multicast in MPLS/BGP IP VPNs.
When we are ruuning Multicast MPLS VPNs , we establish PE-PE PIM Neighbouship per VRF over the MDT Tunnel used for the VRF which is a dynamic always on tunnel. On a per PE basis we will see only PIM Neighbourship with the attached CE and Remote PEs participating the particular VRF for Multicast over the MDT Tunnel.
LDP, ISIS-SR, and BGP-LU (BGP-SR) demonstrates the corresponding Label Switched Paths (LSPs) as the MPLS transport LSPs for Layer3 EVPN and IP VPN services. EVPN Sample Topology In Figure 23-29 and Figure 23-30 , the prefixes from each DC are transported over the WAN/DCI domain, maintaining the Layer 3 multi-tenancy in tenant-a and tenant-b. VPN labels The idea: Use a label to identify the next-hop at the remote PE. Also called VPN label. The label is distributed by BGP, along with the VPN-IP address. Traffic will carry two labels, the VPN label and the LSP label. The remote PE makes the forwarding decision based on the VPN label. ip multicast-routing ip multicast-routing vrf A ! interface Loopback0 ip address 10.10.5.5 255.255.255.255 ip pim sparse-dense-mode ! interface Ethernet0/0 ip address 10.10.35.5 255.255.255.0 ip pim sparse-mode ! interface Ethernet0/3 ip vrf forwarding A ip address 10.10.57.5 255.255.255.0 ip pim dense-mode ! router ospf 1 mpls ldp autoconfig
The ip multicast-routing vrf vrf-name command is used to enable IP multicast for VRF VPN-mjlnet in highlighted line 6. Next, the ip pim sparse-mode command is used to enable PIM sparse mode on an MPLS VPN backbone interface (an interface connected to a P router/other PE router) in highlighted line 7.
However, to support multicast traceroute over an MPLS/BGP IP VPN according to the techniques described in this disclosure, the PE routers are configured to forward a multicast traceroute request