Hello Nanog, We are developing a streaming video based application. Can someone tell me whether (1) Multicasting is necessary for such an application (2) How do we configure multicasting, and multicast (224.x.x.x) to Global IP Conversion, on Cisco Routers. Some useful sites will be handy. (3) What is the function of the MBone network, and whether it is required for such a situation. Deen Sri Lanka Telecom Internet
No but probably preferable, have a look at Cisco press book IP Multicasing volume 1. Neil.
Hello Nanog,
We are developing a streaming video based application. Can someone tell me whether
(1) Multicasting is necessary for such an application (2) How do we configure multicasting, and multicast (224.x.x.x) to Global IP Conversion, on Cisco Routers. Some useful sites will be handy. (3) What is the function of the MBone network, and whether it is required for such a situation.
Deen Sri Lanka Telecom Internet
1) No 2) Check out the really excellent FAQ on the sprintlink web site (www.sprintlink.net). Anycast RP is FAR superior to the auto-RP approach descripted in the Cisco press book, which is now somewhat dated. 3) The MBone is legacy, and more or less deprecated. Find a multicast savvy transit providers and use them instead. Set up MSDP and MBGP peering with them. Daniel Golding NetRail,Inc. "Better to light a candle than to curse the darkness" On Mon, 1 Jan 2001, Neil J. McRae wrote:
No but probably preferable, have a look at Cisco press book IP Multicasing volume 1.
Neil.
Hello Nanog,
We are developing a streaming video based application. Can someone tell me whether
(1) Multicasting is necessary for such an application (2) How do we configure multicasting, and multicast (224.x.x.x) to Global IP Conversion, on Cisco Routers. Some useful sites will be handy. (3) What is the function of the MBone network, and whether it is required for such a situation.
Deen Sri Lanka Telecom Internet
deen@slt.lk wrote:
Hello Nanog,
We are developing a streaming video based application. Can someone tell me whether
(1) Multicasting is necessary for such an application (2) How do we configure multicasting, and multicast (224.x.x.x) to Global IP Conversion, on Cisco Routers. Some useful sites will be handy. (3) What is the function of the MBone network, and whether it is required for such a situation.
Deen Sri Lanka Telecom Internet
Hello; The old MBone - the set of DVMRP domains connected by tunnels, is nearly dead - it shows up as AS10888. The native multicast enabled mbone is called by some the MBone, but this usage is not universal. At any rate, from Sri Lanka you may have trouble getting a direct connection to the multicast enabled Internet. I recommend Sprint in general as the most cluefull of the large multicast providers. I do not know where or with whom you peer, but possible "nearby" multicast service providers include AS 2497 Internet Inititative Japan Inc. AS 9270 Korea Telecom AS 9589 UUNET Hong Kong Ltd. I cannot speak as to their ability. Also, Enron or Qwest might be able to help. If you want to get up quickly, unless you directly peer with someone who does multicast, you will need a tunnel to someone who does. We could help you with that... As Golding says, you will need to speak MSDP and MBGP, as well as (strongly recommended) PIM-SM and IGMP internally Cisco documentation can be obtained from ftp://ftpeng.cisco.com/ipmulticast.html and http://www.ieng.com/warp/public/cc/techno/protocol/ipmu/tech/ipcas_dg.htm Also, you should read the info in http://www.live.com/mbone/ and http://www.ietf.org/meetings/get-mbone.html Further info is available from http://www.ipmulticast.com/ - you should think about joining the IP Multicast mailing list, which is more appropriate for multicast questions than NANOG - To subscribe to the IP Multicast mailing list, send an email message to listserv@stardust.com Leave the subject blank, place the following line of text in the body: subscribe ipmulticast <your full name> Regards Marshall Eubanks Multicast Technologies, Inc. 10301 Democracy Lane, Suite 201 Fairfax, Virginia 22030 Phone : 703-293-9624 Fax : 703-293-9609 e-mail : tme@on-the-i.com http://www.on-the-i.com
Deen, On Mon, Jan 01, 2001 at 06:55:24PM +0600, deen@slt.lk wrote:
We are developing a streaming video based application. Can someone tell me whether
(1) Multicasting is necessary for such an application (2) How do we configure multicasting, and multicast (224.x.x.x) to Global IP Conversion, on Cisco Routers. Some useful sites will be handy. (3) What is the function of the MBone network, and whether it is required for such a situation.
Deen Sri Lanka Telecom Internet
Sounds like a one-to-many application. And as such, I would ask who are your anticipated receivers? Secondly, are those receivers currently able to join multicast groups? If your receiver population is not multicast enabled, then writing a multicast application will be in vain unless you address the extension of multicast to edge where your receivers reside. -ron ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ron da Silva ron@aol.net Network Architect 703.265.4548 America Online, Inc.
On Tue, Jan 02, 2001 at 01:28:04PM -0500, Ron da Silva wrote:
Deen,
On Mon, Jan 01, 2001 at 06:55:24PM +0600, deen@slt.lk wrote:
We are developing a streaming video based application. Can someone tell me whether
(1) Multicasting is necessary for such an application (2) How do we configure multicasting, and multicast (224.x.x.x) to Global IP Conversion, on Cisco Routers. Some useful sites will be handy. (3) What is the function of the MBone network, and whether it is required for such a situation.
Deen Sri Lanka Telecom Internet
Sounds like a one-to-many application. And as such, I would ask who are your anticipated receivers? Secondly, are those receivers currently able to join multicast groups?
If your receiver population is not multicast enabled, then writing a multicast application will be in vain unless you address the extension of multicast to edge where your receivers reside.
Most of the larger ISPs out there have multicast available on their network in various states of being supported. The advent of SSM (single source multicast) makes such one-to-many much easier than in the past. You should be able to call your ISP and ask them if they support multicast. If you want to check on them, and know their ASN you can telnet to one of the route servers (route-views.oregon-ix.net is the best for checking on multicast) and type "sh ip mbgp r _2914$" for example to get an idea of if Verio is a multicast enabled network. The same goes for many other providers. Verio, Sprint, Qwest, Digex/Intermedia, AboveNet/MFN and GlobalCenter all have multicast enabled networks and offer multicast services to customers last I knew. I don't speak for any of them so my information may be out of date... - Jared -- Jared Mauch | pgp key available via finger from jared@puck.nether.net clue++; | http://puck.nether.net/~jared/ My statements are only mine. END OF LINE | Manager of IP networks built within my own home
Jared, On Tue, Jan 02, 2001 at 01:45:53PM -0500, Jared Mauch wrote:
Verio, Sprint, Qwest, Digex/Intermedia, AboveNet/MFN and GlobalCenter all have multicast enabled networks and offer multicast services to customers last I knew. I don't speak for any of them so my information may be out of date...
Is the interesting receiver population the operators of these major backbones and those of their (smaller?) customer networks? Regardless, are the receivers that Deen desires to reach multicast enabled or not? Who do you want to reach with this application? -ron ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ron da Silva ron@aol.net Network Architect 703.265.4548 America Online, Inc.
Ron da Silva wrote:
Jared,
On Tue, Jan 02, 2001 at 01:45:53PM -0500, Jared Mauch wrote:
Verio, Sprint, Qwest, Digex/Intermedia, AboveNet/MFN and GlobalCenter all have multicast enabled networks and offer multicast services to customers last I knew. I don't speak for any of them so my information may be out of date...
Is the interesting receiver population the operators of these major backbones and those of their (smaller?) customer networks? Regardless, are the receivers that Deen desires to reach multicast enabled or not? Who do you want to reach with this application?
-ron
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ron da Silva ron@aol.net Network Architect 703.265.4548 America Online, Inc.
From the sound of it, he wants to reach an academic audience, which has a much higher chance of being multicast enabled.
FWIW, there are 321 autonomous systems on my current list of the multicast enabled. Regards Marshall Eubanks Multicast Technologies, Inc. 10301 Democracy Lane, Suite 201 Fairfax, Virginia 22030 Phone : 703-293-9624 Fax : 703-293-9609 e-mail : tme@on-the-i.com http://www.on-the-i.com
participants (6)
-
Daniel L. Golding -
deen＠slt.lk -
Jared Mauch -
Marshall Eubanks -
Neil J. McRae -
Ron da Silva