Cheap Office 2007 IP multicast using Windows Media

With all the speedy improvement of the web, a considerable improve in network programs, in specific, the large volume of video clip information transmission. By optimizing bandwidth to meet the growing needs of data visitors, IP multicast technologies is an vital indicates of optimizing bandwidth. The current Internet-based video clip multicast applications is incredibly extensive, which include real-time video clip conferencing, distance studying techniques, remote presentation methods and video on demand methods (VOD) etc. Here's the newest technology to obtain IP multicast and application discussions.
IP Multicast Prerequisites
IP multicast device support
multicast supply and multicast group members and among the underlying network ought to support multicast, the specific circumstances are as follows:
◆ host TCP / IP support for sending and getting IP multicast packets;
◆ host adapter supports multicast;
◆ a set of members for the management, and query group members depart the group management protocol, which include Internet Group Management Protocol (IGMP);
◆ a set of IP multicast address allocation technique,Microsoft Office Enterprise 2007, and IP multicast addresses can map towards the multicast MAC address;
◆ IP multicast applications that support application;
◆ all in between members with the multicast source and multicast group between the routers, switches, TCP / IP protocol stack, firewall, etc., need to support multicast.
tackle allocation strategy
in IPv4 in order to handle being a Class D IP multicast tackle, the range is 224.0.0.0 to 239.255.255.255, assigned handle in Table 1.
Internet Group Management Protocol and IP multicast routing protocols
to accomplish in actual networks IP multicast packet forwarding, all connected products need to be operating Online Group Management Protocol (IGMP) and interoperable IP multicast routing protocols for example DVMRP, PIM-DM, PIM-SM, MOSPF etc. Various multicast routing protocols to create multicast distribution tree in different methods.
create a platform for IP Multicast

to multicast applications on the network should possess the proper equipment and protocols to assistance multicast. Multicast protocols in accordance using the classification, the three-tier multicast protocols are DVMRP, PIM and IGMP, and so on., but the second floor of the multicast protocol is mainly used CGMP (Cisco Group Management Protocol) and IGMP listeners. Three-layer multicast protocols primarily employed for multicast forwarding information, layer multicast protocols mainly used to suppress unwanted multicast messages around the LAN. Routers and multilayer switches in general to accomplish three of the multicast protocol, but do not have the multi-layer switching within the switch can only be accomplished about the 2nd floor with the general multicast protocol.
Within this scenario, the network of data factors complete of 570, divided into 19 virtual LANs (VLAN), switching gear employed Cisco Methods Catalyst 6500, Catalyst 2950, ​​all of its ports assistance wire-speed IP multicast, PIM loose and dense mode, as well as standard DVMRP interoperability between apps, offering IGMPv1 / two assistance for your integration of IP Multicast and Catalyst switches offer the core of CGMP server abilities. These agreements on IP multicast, and successfully cope with customers is essential, saving bandwidth and client CPU sources.
3 switches by VLAN
by 3 switches VLAN, stick to these steps:
Switch # vlan database
Change (vlan) # vlan vlan-num title vlan-name
Change (vlan) # exit
Change # configure terminal
Switch (config) # interface interface module / amount
Switch (config-if) # switchport mode accessibility
Change (config-if) # switchport accessibility vlan vlan-num
Switch (config-if) # end
commence routing protocol PIM
dense mode protocol PIM-DM for multicast cases are: the sender along with the receiver nearer to each other; sending little, a large number of of the obtaining party; the big number of multicast information streams; multicast information stream is really a regular .
sparse mode protocol PIM-SM for multicast circumstances are: Inside a multicast group has less recipients; data stream sort is intermittent.
multicast routing is enabled to carry out the adhering to two fundamental steps:
◆ international configuration mode ip multicast-routing enable multicast routing, however the interface is turned off:
Switch (config) # ip multicast-routing
◆ interface configuration mode, configure the ip pim dense-mode/sparse-mode/sparse-dense-mode:
Switch (config-if) # ip pim dense-mode
Be aware: If configured for PIM Sparse-mode, you need to select one or alot more routers being a focal point, though a focal level of the IP handle from the router should be configured in the leaf node (Leaf Router) on. Leaf node routers is directly associated to a multicast group members or multicast message Fangxiang connected towards the router.
start CGMP protocol
IGMP protocol there's a problem, in the event you set a switch in a VLAN can acknowledge multicast information, then all workstations in the VLAN will receive the multicast stream, this created a CGMP.
CGMP is actually a Cisco proprietary protocol, can only be used in conjunction with the PIM, that does not support other multicast routing protocols. To prevent troubles caused by IGMP protocol, the manage port bandwidth multicast data stream to control the ports needed.
CGMP is based, IP Multicast IGMP router can see all the information packets, so to notify all of the switches (working with the Layer 2 Well-known handle), and from which hosts when including multicast group. Development with the change is a switch to use the specifics published.
CGMP is determined by customer / server design. Part as being a CGMP server routers, switches its clients. Allow CGMP allows the change more than from the router to make use of the multicast data. CGMP is enabled about the router interface command ip cgmp, will trigger a CGMP join message, you could use to detect no matter whether the present running interface enabled CGMP:
Switch (config-if) # ip cgmp
Switch # illustrate operating
Windows Media nine to accomplish IP Multicast
Through this plan additional than
configured IP multicast platform, utilizing Windows Media 9 streaming media solution allows the configuration from the multicast stream. Windows Media nine video technology is Microsoft's latest adaptation of many different conditions of network bandwidth streaming multimedia specifics publishing platform to support IPv6 and IGMPv3, such as streaming media production, publishing, broadcasting and management set of options :
◆ Windows Media Support nine;
◆ Windows Media Encoder;
◆ Windows Media Player.
Windows Media Providers 9 utilizing the broadcast publishing position, the customer requests for material placement from the content material is converted for the physical route about the server. The client after a successful connection towards the distribution level, Windows Media server to handle the connection and transfer the material. So, let end users access media on your server, you need to produce a sequence of broadcast publishing point, and generate. Nsc file plus the. Asx files.
. nsc file is saved all employed to Windows Media Player ASF handed spread the crucial information and facts, including IP deal with, port, stream format, the survival time (TTL) values, often saved inside a shared network directory or Web server directory as a way to use Windows Media Player. When Windows Media Player opens, UNC route or by way of the extraction stage for the Web page link. Nsc file URL. . Asx file will contain. Nsc file entry path. . Asx file along with the. Nsc files should be positioned about the customer accessibility towards the place.
Windows Media Player to entry the multicast ASF streams. As lengthy as the server, encoder, player are effectively configured, the client might be in a position to properly receive multicast stream, the configuration procedure commonly be aware the adhering to:
Windows Encoder Configurations
Windows encoder set the basic process is: to establish a session → input encoder encoding support resources (including documents, gear, display and script commands) encoding the output to a file or broadcasting reside occasions (utilizing push or pull delivery delivery distribution methods.)
Windows Media server configurations
Windows Media server to set the simple procedure is: include the distribution stage server → set (broadcast) → Settings → Video Providers Attributes home is set publishing position factors bulletin issued → set (generated ASX, NSC file) .
Internet server settings
when multicast transmission in between multi-segment, utilize the HTTP transport protocol. Hence, in case the Internet server and Media server utilizes the same server, you must pay interest to: Internet server default port and the Media server's default HTTP port need to be various, HTTP default accessibility route is the server's C: interpub wwwroot ,Windows 7 32 Bit, proposed ASX, NSC, ASF be put in this particular directory, entry it truly is also hassle-free. NSC file route assumption here's:

Windows Media Player configurations
Media Player on the consumer to open a file, URL column enter:

the previously mentioned settings, total IP implementation utilizing Windows Media multicast.
What is IP Multicast
?
IP Multicast refers towards the TCP / IP network to obtain the multicast (multicast), can be a regular IP network layer protocol extensions. Its standard approach is: when an individual sends information to a group of individuals, it's not crucial to deliver information to everybody, just to deliver information to a particular group tackle booking, all you can join the group's per capita obtain this information. So that the sender, the data can be sent only as soon as to deliver to all recipients, to stay clear of the broadcast storm produced, significantly lowering the network load as well as the burden of the sender.
World-wide-web Group Management Protocol What's?
Online Group Management Protocol (IGMP) is definitely an integral part of IP protocol, operating about the IP hosts and multicast routers, also as multicast router, IGMP multicast router to obtain by way of the subnet straight linked information and facts in regards to the multicast group members. One can find three variations of IGMP: IGMPv1, IGMPv2 and IGMPv3. Which, IGMPv3 provides support avoid multiple broadcast servers use the exact same multicast IP tackle the troubles of capacity, this feature needs connection to a multicast client uses Windows Media Player nine Series.
What's
compatible modes of operation: dense mode (PIM-DM) and Sparse Mode (PIM-SM).
What's the IPv6 protocol
?
the existing IPv4 World-wide-web is operating around the basis with the agreement, IPv6 is the up coming version of Internet protocol. IPv4 uses a 32-bit tackle duration, only about 4.three billion addresses, is anticipated to become in between 2005-2010 was allocated. Address room shortage will impede the additional development of the world wide web, it really is proposed to re-define IPv6 to expand via the deal with space. IPv6 uses 128-bit tackle duration of the nearly unlimited handle provided. In IPv6, the style procedure, furthermore to resolving the deal with shortage, it also isn't considered within the IPv4 address other problems, including finish to end IP connectivity, excellent of services (QoS), protection, multicast, and mobility, and so forth.