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- Content-type: text/html
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- <HTML><HEAD></HEAD><BODY>
- <H1>Resource Reservations</H1>
- <P>
- The Resource ReSerVations Protocol (RSVP) reserves network bandwidth for
- an application to ensure a higher quality of service for the
- application, regardless of the network load. RSVP is particularly useful
- for multimedia applications such as video conferencing and Internet
- telephony. </P>
- <P>
- To use RSVP, a destination application (that is, the application
- receiving the data) requests an amount of network bandwidth on a data
- path to the source of the data. The request is sent to the local RSVP
- daemon, <VAR>rsvpd</VAR>, which checks for available bandwidth on the
- local network interfaces. If bandwidth is available, <I>rsvpd</I>
- forwards the request to its neighbor on the data path. The process of
- checking and forwarding is repeated, neighbor to neighbor, until the
- request reaches the data source. If sufficient bandwidth is available at
- each hop along the path, the request for reserved bandwidth is granted
- and a connection is established between the source and the destination.
- </P>
- <P>
- To configure the RSVP service on the local host, you must enable
- <I>rsvpd</I> and specify the level of error and event reporting that
- <I>rsvpd</I> records. You must also specify the bandwidth reserved for
- RSVP requests on individual network interfaces. This specification is
- handled by the IRIX packet scheduler, <I>psifconfig</I>. If you wish,
- you can disable RSVP on an individual network interface to prevent RSVP
- reservations on it.</P>
- <P>
- Use these forms to configure or change RSVP and view RSVP sessions on
- the Gateway server: <BR>
- </P>
- <UL>
- <LI>
- <A HREF="index.rsvp1.shtml" TARGET="left">RSVP Daemon Configuration</A>
- <LI>
- <A HREF="index.rsvp2.shtml" TARGET="left">RSVP Sessions Viewer</A>
- <LI>
- <A HREF="index.rsvp3.shtml" TARGET="left">RSVP Interface Configuration</A>
- </UL>
- <P>
- For additional information, see the rsvpd(1M), rstat(1M) and
- psifconfig(1M) reference pages. EndOfFile </P>
- </BODY></HTML>
- EndOfFile
-