Five hours of new videos have been added to INE's CCIE Service Provider Version 3.0 Advanced Technologies Class which cover Multicast VPN and QoS support for Layer 3 MPLS VPNs.  Specifically these videos cover Multicast VPN & QoS theory, configuration, verification, and troubleshooting on both regular IOS and IOS XR, including PIM Sparse Mode, PIM Source Specific Multicast, VRF Aware PIM, Multicast Distribution Trees, BGP MDT exchange, and SP QoS Classification, Marking, Scheduling, and... Read More
Today launches the first of many of our new INE Video Blog series.  Our first video covers the advanced design issues with running Multicast and Auto-RP over NBMA networks such as Frame-Relay Hub-and-Spoke.  Specifically this video focuses on possible solutions such as sparse-dense mode, sparse-mode with auto-rp listener, sparse-mode with a default RP placement, and PIM Join issues related to point-to-point vs multipoint interfaces and their underlying IGP protocols. Read More
After working with the December 2010 London Bootcamp on Multicast for the better part of Day 4 in our 12-day bootcamp, I returned to the hotel to find the following post on my Facebook page - "Multicast is EVIL!" Read More
When we ask students “what are your weakest areas” or “what are your biggest areas of concern” for the CCIE Lab Exam, we typically always here non-core topics like Multicast, Security, QoS, BGP, etc. As such, INE has responded with a series of bootcamps focused on these disciplines. The IPv4/IPv6 Multicast 3-Day live, online bootcamp, and the associated Class On-Demand version seeks to address the often confounding subject of Multicast. Detailed coverage of Multicast topics for the following... Read More
Abstract This publication illustrates some common techniques for troubleshooting multicast issues in IP networks. Common problems and their causes are discussed, troubleshooting techniques demonstrated. PIM Sparse mode is used for most of the examples, due to the fact that this is the most complicated mode of multicast signaling. The suggested troubleshooting approach separates control plane from data-plane troubleshooting and heavily relies on the mroute command for the control-plane... Read More
Introduction This blog post provides example M-VPN configuration using out-of-band mapping of C-multicast groups to core M-LSP tunnels signaled via M-LDP. A reader is assumed to have solid knowledge of M-VPNs and understanding of M-LDP. For people unfamiliar with M-LDP, the following blog post provides some introductory reading: The long road to M-LSPs. The terminology used in this article follows the common convention of using the "P-" prefix for provider specific objects (e.g. multicas routes... Read More
Abstract: Inter-AS Multicast VPN solution introduces some challenges in cases where peering systems implement BGP-free core. This post illustrates a known solution to this problem, implemented in Cisco IOS software. The solution involves the use of special MP-BGP and PIM extensions. The reader is assumed to have understanding of basic Cisco's mVPN implementation, PIM-protocol and Multi-Protocol BGP extensions. Abbreviations used mVPN – Multicast VPN MSDP – Multicast Source Discovery Protocol PE... Read More
In this post we will quickly discuss the use of most commonly needed IGMP timers. First, as we know, multicast routers periodically query hosts on a segment. If there are two or more routers sharing the same segment, the one with the lowest IP address is the IGMP querier (per IGMPv2 election procedure – as you remember, IGMPv1 let the multicast routing protocol define the querier). Read More
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