VPLS LSM overcomes the drawbacks of ingress replication.VPLS end points are automatically discovered and P2MP-TE trees are set up with the use of Resource Reservation Protocol Traffic Engineering (RSVP-TE) without operational intervention. In Cisco IOS-XR Software Release 5.1.0, Cisco ASR 9000 Series implement VPLS LSM with point-to-multipoint traffic engineering (P2MP-TE) inclusive trees. In order to mitigate this inefficiency, pair LSM with VPLS in order to introduce LSM multicast trees over the core. As a result, multiple copies of the same flow traverse core networks. Although L2 technology allows snooping to be used in order to optimize replication of multicast traffic into L2 pseudowires, the core remains agnostic to multicast traffic. VPLS is a widely-deployed service provider L2VPN technology that is also used for multicast transport. Ingress replication is also resource-intensive because the ingress PE router bears the full burden of the replication.Ingress replication can result in significant wasted link bandwidth when there is heavy broadcast and multicast VPLS traffic.Ingress replication is bandwidth inefficient because the same packet might be sent multiple times over the same link for each P2P PW.Ingress replication is used in order to send that flooded traffic over each P2P PWs to all remote PE routers that are part of the same VPLS domain. Broadcast, multicast, and unknown unicast traffic is flooded in a VPLS domain to all PEs. A full mesh of point-to-point (P2P) pseudowires (PWs) is set up between all of the Provider Edge (PE) routers that participate in a VPLS domain in order to provide VPLS emulation. VPLS emulates LAN services across a Multiprotocol Label Switching (MPLS) core. VPLS Label Switched Multicast (LSM) Overview If your network is live, make sure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. This document is not restricted to specific software and hardware versions. There are no specific requirements for this document. This document describes Virtual Private LAN Service (VPLS) Label Switched Multicast (LSM) for the Aggregation Services Router (ASR) 9000 Series that run Cisco IOS ® XR software. Multiphoton: Multiphoton confocal microscopy with the Zeiss LSM /NLO and Zeiss Image Browser: Image Browser is a free stripped-down version of the The program runs on any platform with Java (including Mac OSX) and can be.
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