Though there are a number of other vendors that produce video streaming
systems, Cisco has the iptv product. With an IPTV server you can put S
Video, or RCA input into a multicast (or unicast) stream, or you can use a
unicast stream to 'seed' a multicast session onto your network. You can
also use a content manager to provide a library of unicast video on demand
titles.
At my last employer we used IPTV to put some very impressive 1 MB+ video
feeds onto the LAN. With CGMP everybody in the office could view CNN, or
some other news satellite feed, on their desktops with full screen 30 fps
quality. IPTV comes with it's own client viewer and java plug-in for web
pages.
Perhaps it was not the best thing from productivity, but it was cool to see
the technology work. Now if I could just get that kind of video to may
desktop at home.
--David
----- Original Message -----
From: "Larry Lamb"
To:
Sent: Friday, May 11, 2001 2:04 AM
Subject: Re: very confused with multicast..help [7:4133]
> In article , "Susan Stone"
> wrote:
>
> 1) You need a client that will join/listen to IP multicast. I know Cisco
> typically uses a video steaming technology to demonstrate this.
>
> 2) This is where the server portion of the software comes into play.
> Hopefully some others will be able to give you specific softwares that
> use multicast as I've never looked into packages for this.
>
> 4) Multicast is useful when you need to send traffic to multiple hosts,
> but not all in a network. It uses less bandwidth than unicast and
> doesn't interrupt all hosts like broadcast traffic does. With
> technologies like CGMP, the traffic doesn't even have to be forwarded out
> all switched ports.
>
>
> > Hi.. I am very confused about multicast, May I ask questions as below
> >
> > 1)How to make the Windows PC or unix host join a multicast group let's
> > say 224.0.0.9
> > 2)How to send a multicast traffic or how to test the mulitcast work?
> > 3)I have a WAN router which has joined multicast 224.0.0.2/5/6, may I
> > know why it should be a multicast group? for what purppose normally. I
> > know 224.0.0.2 is for all routers, 5 is for OSPF, 6 for OSPF designate
> > router. But whether it is a default setting or we have to make it join
> > group
> >
> > FastEthernet0/0 is up, line protocol is up
> > Internet address is 50.100.160.2/22
> > Broadcast address is 255.255.255.255
> > Address determined by non-volatile memory MTU is 1500 bytes
> > Helper address is not set
> > Directed broadcast forwarding is disabled Secondary address
> > 50.100.120.2/27
> > Secondary address 50.100.122.2/26
> > Multicast reserved groups joined: 224.0.0.2 224.0.0.5 224.0.0.6
> >
> > 4)Normally in what circumstance, we need to use multicast?
> >
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