Multicast Source Discovery Protocol (original) (raw)
组播源发现协议（Multicast Source Discovery Protocol，简称MSDP）是一个（PIM）家族的多播路由协议，定义于实验性RFC 3618。MSDP互联多个IPv4 （PIM-SM）域，使PIM-SM有集合点（RP）冗余和组播RFC 4611。 MSDP使用TCP作为其传输协议。每个组播树有其自己的RP。所有RP都是对等体（直连或通过其他MSDP对等体）。消息包含数据源、数据发送至组地址（S,G）。如果一个RP在其域上收到一个消息，它会测定此域上是否有对组播感兴趣的组成员。如果某人感兴趣，它以(S, G)的方式触发一个向数据源（来源域）的加入。在对等关系中，一个MSDP对等体在639端口上监听新的TCP连接。MSDP是适用于IPv4和IPv6组播的协议。
| Property | Value |
|---|---|
| dbo:abstract | Multicast Source Discovery Protocol (MSDP) is a Protocol Independent Multicast (PIM) family multicast routing protocol defined by Experimental RFC 3618. Despite becoming the IPv4 de facto standard for inter-domain multicast, development of the protocol stopped in 2006 and it was decided by the authors not to proceed with making it a proposed standard. MSDP interconnects multiple IPv4 PIM Sparse-Mode (PIM-SM) domains which enables PIM-SM to have Rendezvous Point (RP) redundancy and inter-domain multicasting RFC 4611. MSDP uses TCP as its transport protocol. Each multicast tree needs to have its own RP. All of the RPs are peers (directly or through other MSDP peers). Messages contain the sender (source) address and the multicast group address (S,G). If an RP on its own domain receives a message, it determines if there are listeners for this group. If listeners exist, it triggers a PIM join into the source domain towards the data source. In a peering relationship, one MSDP peer listens for new TCP connections on the well-known port 639. MSDP is deliberately unspecified for IPv6, for a number of reasons, including that protocols such as Source-Specific Multicast (SSM), and IPv6 Embedded Rendezvous Points would mean there was less requirement for MSDP. (en) 组播源发现协议（Multicast Source Discovery Protocol，简称MSDP）是一个（PIM）家族的多播路由协议，定义于实验性RFC 3618。MSDP互联多个IPv4 （PIM-SM）域，使PIM-SM有集合点（RP）冗余和组播RFC 4611。 MSDP使用TCP作为其传输协议。每个组播树有其自己的RP。所有RP都是对等体（直连或通过其他MSDP对等体）。消息包含数据源、数据发送至组地址（S,G）。如果一个RP在其域上收到一个消息，它会测定此域上是否有对组播感兴趣的组成员。如果某人感兴趣，它以(S, G)的方式触发一个向数据源（来源域）的加入。在对等关系中，一个MSDP对等体在639端口上监听新的TCP连接。MSDP是适用于IPv4和IPv6组播的协议。 (zh) |
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| gold:hypernym | dbr:Multicast |
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| rdfs:comment | 组播源发现协议（Multicast Source Discovery Protocol，简称MSDP）是一个（PIM）家族的多播路由协议，定义于实验性RFC 3618。MSDP互联多个IPv4 （PIM-SM）域，使PIM-SM有集合点（RP）冗余和组播RFC 4611。 MSDP使用TCP作为其传输协议。每个组播树有其自己的RP。所有RP都是对等体（直连或通过其他MSDP对等体）。消息包含数据源、数据发送至组地址（S,G）。如果一个RP在其域上收到一个消息，它会测定此域上是否有对组播感兴趣的组成员。如果某人感兴趣，它以(S, G)的方式触发一个向数据源（来源域）的加入。在对等关系中，一个MSDP对等体在639端口上监听新的TCP连接。MSDP是适用于IPv4和IPv6组播的协议。 (zh) Multicast Source Discovery Protocol (MSDP) is a Protocol Independent Multicast (PIM) family multicast routing protocol defined by Experimental RFC 3618. Despite becoming the IPv4 de facto standard for inter-domain multicast, development of the protocol stopped in 2006 and it was decided by the authors not to proceed with making it a proposed standard. MSDP interconnects multiple IPv4 PIM Sparse-Mode (PIM-SM) domains which enables PIM-SM to have Rendezvous Point (RP) redundancy and inter-domain multicasting RFC 4611. (en) |
| rdfs:label | Multicast Source Discovery Protocol (en) 组播源发现协议 (zh) |
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