On Wednesday, September 21, 2011 12:48:21 AM Stefan Fouant wrote: > Just out of curiousity, since I am always eager to learn > how people are deploying this in the real-world - do you > have multiple ingress nodes streaming the same content > and use diverse P2MP LSPs to your head-ends a-la > "live-live" or some other approach for ensuring > redundant data?
For redundancy, we do have multiple ingress points streaming the same content, but we're always choosing one source at a time, as it would be too complex to try and take live streams from all sources at the same time just by IP routing alone. In this case, a particular Sender PE router is chosen to ingress Multicast data for the network based on the LOCAL_PREF value of the BGP route toward (C-S). Every Sender PE router applies a BGP LOCAL_PREF value to the (C-S) route in a "3, 2, 1" type order. So basically, a live/standby approach. This is the simplest approach we could take prior to the protocol introducing support for 'draft-morin-l3vpn-mvpn- fast-failover-05'. Cheers, Mark.
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