HP Routing Services -UX 11i v2 Mrouted Routing Daemon, Multicasting Overview, Dvmrp Protocol

NOTE

Overview

The mrouted Routing Daemon

The mrouted Routing Daemon

mrouted (pronounced “M route D”) is a routing daemon that forwards IP multicast datagrams, within an autonomous network, through routers that support IP multicast addressing. mrouted implements the Distance-Vector Multicast Routing Protocol (DVMRP). The ultimate destination of multicast datagrams are host systems that are members of one or more multicast groups.

Multicasting enables a client to establish one-to-many and many-to-many communication with other hosts and is used extensively in networking applications such as audio and video teleconferencing, where multiple hosts need to communicate with each other simultaneously.

You cannot use System Administration Manager (SAM) to configure mrouted.

mrouted routes multicast datagram packets only on certain network interfaces, such as EISA Ethernet (lan2) and EISA FDDI (from a provider other than HP), and the interface types vary depending on the system platform.

When you install the HP-UX 11i v2 operating system, mrouted is automatically installed on your system.

For more information on mrouted, type man 1m mrouted at the HP-UX prompt.

Multicasting Overview

This section describes the multicast routing protocol implemented in mrouted, and the multicast addresses and groups.

DVMRP Protocol

mrouted implements the Distance-Vector Multicast Routing Protocol (DVMRP). You can use DVMRP, an Interior Gateway Protocol (IGP), to route multicast datagrams within an autonomous network. The primary purpose of DVMRP is to maintain the shortest return paths to the source

Chapter 1 17