Overview
Cisco® Bit Indexed Explicit Replication (BIER) is an architecture used to forward multicast through an IP network. The innovative part of BIER is that it requires no explicit multicast signaling protocol in the network. There is no need to run Protocol Independent Multicast (PIM), multipoint LDP (mLDP), or P2MP MPLS traffic engineering within the network to signal multicast state hop-by-hop. Instead, the multicast forwarding state created in the network is driven by advertisements through the link state protocols OSPF or ISIS. This forwarding state is not per (*,G) or (S,G), but per egress router. Although packet forwarding is new and unique, there is interoperability with existing techniques for overlay signaling. These techniques are widely deployed in mVPN networks today.
Check it out here: https://dcloud-cms.cisco.com/demo/bier_v2
Scenarios
- Scenario 1: Deploy the Link State Protocol
- Scenario 2: Deploy PIM/IP Multicast at the Edge
- Scenario 3: Deploy the BGP Overlay (IPv4)
- Scenario 4: Deploy the BGP Overlay (IPv4) with Sets
- Scenario 5: Deploy the BGP Overlay (IPv6)
- Scenario 6: Deploy BIER with Static Mapping in Global
- Scenario 7: Deploy BIER in Global Table with Overlay Signaling
Requirements
| Required | Optional |
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Components
- IOS XRv pre-release
- Cisco Virtual Internet Routing Lab (VIRL)
Features
| VIRL |
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Topology
