Thanks everyone, it's more clear now!
On Tue, Jan 7, 2014 at 4:03 PM, Rogelio Gamino <[email protected]> wrote: > Don't forget anycast RP. MSDP is not just used to inter-connect mcast > domains. > > MPBGP is one of the tools we have available to solve RPF issues but it is > not always required. > > > On Tue, Jan 7, 2014 at 3:08 PM, Ryanlk18 . <[email protected]> wrote: > > > You can use MPBGP multicast address-family to carry source information > > across the network to the RP. This can be useful in dealing with RPF > > issues where static mroutes won't work or you cannot manipulate the > > underlying routing protocol. > > > > MSDP is used to connect RPs together across multicast domains. This is > > needed when you have multiple multicast domains that need to be connected > > in order to share multicast feeds across the network. > > > > It could be possible to peer MSDP through a GRE Tunnel, but I've always > > used MSDP and MPBGP together as they are both necessary to carry the > source > > and RP information to bridge the domains. > > > > V/r, > > > > Ryan Krcelic > > > > > > > > On Tue, Jan 7, 2014 at 2:31 PM, Andrew LaPorte <[email protected]> wrote: > > > > > I'm going to try to help out here a bit. > > > > > > BGP and MSDP are not directly related to one another. You can have > MSDP > > > without having BGP but it is typical to have BGP and Multicast as that > > is a > > > larger environment. > > > > > > MSDP simply allows one RP to exchange multicast information with > another > > > RP, > > > i.e. source A can register with RP A then another source B can register > > > with > > > RP B. If RP A and RP B have MSDP between them then both with know > about > > > source A and source B. > > > > > > Now if you want a client to be able to get to both source A and source > B > > > they must have a route that passes an RFP check. This is where BGP or > > OSPF > > > or EIGRP would come in typically. > > > > > > Hope this helps. > > > > > > AndyL > > > > > > > > > -----Original Message----- > > > From: [email protected] > > > [mailto:[email protected]] On Behalf Of Ryan Jensen > > > Sent: Tuesday, January 7, 2014 1:47 PM > > > To: [email protected] > > > Subject: [OSL | CCIE_RS] Multicast question > > > > > > I all, this is probably an amateur question, but I'm having an issue > > > wrapping my head around how BGP for multicast relates to MSDP. > > > Here's how I Think they relate: > > > BGP for multicast shares routes to RPs for the purpose of RPF MSDP > shares > > > 'routes' to multicast sources. > > > > > > The sources that are shared via MSDP need to be reachable via the > routes > > > learned from BGP yes? > > > > > > Is this a correct understanding? > > > _______________________________________________ > > > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos > :: > > > > > > iPexpert on YouTube: www.youtube.com/ipexpertinc > > > > > > _______________________________________________ > > > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos > :: > > > > > > iPexpert on YouTube: www.youtube.com/ipexpertinc > > > > > _______________________________________________ > > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: > > > > iPexpert on YouTube: www.youtube.com/ipexpertinc > > > _______________________________________________ > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: > > iPexpert on YouTube: www.youtube.com/ipexpertinc > _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc
