Virtual Internet Backbone for Multicast IP.
IP-Multicast is the
class-D addressing scheme in
IP implemented by Steve Deering
AT Xerox PARC. It was adopted
AT the
IETF March 1992 meeting and acquired the name MBONE after the July 1992 IETF meeting. IP Multicast-based routing allows distributed applic
ATions to achieve
real-time communic
ATion over
IP {wide area network}s through a lightweight, highly {thread}ed model of communic
ATion. Each network-provider participant in the MBONE provides one or more IP multicast routers to connect with tunnels to other participants and to customers. The multicast routers are typically separ
ATe from a network' s production routers since most production routers don' t yet support IP multicast. Most sites use workst
ATions running the mrouted program, but the experimental MOSPF software for Proteon routers is an altern
ATive. It is best if the workst
ATions can be dedic
ATed to the multicast routing function to avoid interference from other activities and so there will be no qualms about installing kernel p
ATches or new code releases on short notice. Since most MBONE nodes other than endpoints will have
AT least three tunnels, and each tunnel carries a separ
ATe (unicast) copy of each packet, it is also useful, though not required, to have multiple network interfaces on the workst
ATion so it can be installed parallel to the unicast router for those sites with configur
ATions like this: +----------+ | Backbone | | Node | +----------+ | ------------------------------------------ External DMZ Ethernet | | +----------+ +----------+ | Router | | mrouted | +----------+ +----------+ | | ------------------------------------------ Internal DMZ Ethernet This configur
ATion allows the mrouted machine to connect with tunnels to other regional networks over the external
DMZ and the physical backbone network, and connect with tunnels to the lower-level mrouted machines over the internal
DMZ, thereby splitting the load of the replic
ATed packets. The mrouted machine would not do any unicast forwarding. Note th
AT end-user sites may particip
ATe with as little as one workst
ATion th
AT runs the packet audio and video software and has a tunnel to a network-provider node.
RFC 1112 gives the details.
FAQ . (1994-11-11)
In addition suitable contents:
[ 2 ] [ = ] [ ad ] [ address ] [ af ] [ ai ] [ al ] [ alt ] [ am ] [ an ] [ app ] [ applicATion ] [ ar ] [ ARC ] [ arc ] [ as ] [ AT ] [ au ] [ audio ] [ av ] [ B ] [ b ] [ ba ] [ backbone ] [ base ] [ be ] [ bo ] [ bon ] [ by ] [ C ] [ ca ] [ cast ] [ cAT ] [ ch ] [ ci ] [ ck ] [ cl ] [ class ] [ co ] [ code ] [ com ] [ con ] [ connect ] [ cu ] [ D ] [ dd ] [ de ] [ ding ] [ DMZ ] [ do ] [ du ] [ E ] [ ec ] [ ed ] [ ee ] [ eg ] [ end-user ] [ er ] [ es ] [ ET ] [ et ] [ Ethernet ] [ FAQ ] [ FC ] [ fi ] [ file ] [ fo ] [ for ] [ forward ] [ fr ] [ function ] [ gh ] [ gi ] [ gr ] [ gu ] [ h ] [ hAT ] [ hose ] [ hr ] [ ht ] [ id ] [ IE ] [ ie ] [ IETF ] [ il ] [ in ] [ inc ] [ int ] [ interface ] [ Internet ] [ io ] [ IP ] [ ir ] [ is ] [ it ] [ J ] [ ke ] [ kernel ] [ la ] [ ld ] [ Lex ] [ li ] [ like this ] [ load ] [ ls ] [ lt ] [ ly ] [ M ] [ ma ] [ machine ] [ MB ] [ ml ] [ mm ] [ mo ] [ mod ] [ mode ] [ model ] [ module ] [ MOS ] [ mp ] [ mr ] [ ms ] [ Mu ] [ mu ] [ MZ ] [ N ] [ na ] [ nc ] [ ne ] [ net ] [ network ] [ nf ] [ ng ] [ ni ] [ nn ] [ no ] [ node ] [ ns ] [ O ] [ om ] [ op ] [ OS ] [ OSP ] [ OSPF ] [ pa ] [ packet ] [ PARC ] [ pe ] [ ph ] [ physical ] [ pl ] [ point ] [ port ] [ pr ] [ product ] [ program ] [ provider ] [ pt ] [ py ] [ Q ] [ query ] [ rc ] [ re ] [ real ] [ real-time ] [ regional network ] [ release ] [ RFC ] [ RFC 1112 ] [ ro ] [ route ] [ routed ] [ router ] [ routing ] [ ru ] [ run ] [ rw ] [ S ] [ sc ] [ se ] [ sh ] [ si ] [ sit ] [ so ] [ software ] [ SP ] [ split ] [ st ] [ su ] [ support ] [ T ] [ tc ] [ th ] [ thread ] [ tm ] [ to ] [ tp ] [ tr ] [ tt ] [ tw ] [ ua ] [ ug ] [ up ] [ us ] [ user ] [ V ] [ ve ] [ vi ] [ workstATion ] [ ws ] [ X ] [ ye ] [ Z ]