Pim-Dm Settings - D-Link DES-3326SRM - Switch - Stackable Product Manual

The following fields for DVMRP can be set:
Parameter
Interface Name <System>
IP Address
Probe Interval <10>
Neighbor Timeout Interval <35>
Metric <1>
State <Disabled>

PIM-DM Settings

For a description of how Protocol Independent Multicast-Dense Mode (PIM-DM) functions, please read Appendix C.
The PIM-DM settings menu links are located in the PIM-DM subdirectory located in the Layer 3 IP Networking
configuration folder.
The Protocol Independent Multicast – Dense Mode (PIM-DM) protocol should be used in networks with a low delay (low
latency) and high bandwidth as PIM-DM is optimized to guarantee delivery of multicast packets, not to reduce overhead.
The PIM-DM multicast routing protocol is assumes that all downstream routers want to receive multicast messages and relies
upon explicit prune messages from downstream routers to remove branches from the multicast delivery tree that do not contain
multicast group members.
PIM-DM has no explicit 'join' messages. It relies upon periodic flooding of multicast messages to all interfaces and then either
waiting for a timer to expire (the Join/Prune Interval) or for the downstream routers to transmit explicit 'prune' messages
indicating that there are no multicast members on their respective branches. PIM-DM then removes these branches ('prunes'
them) from the multicast delivery tree.
Because a member of a pruned branch of a multicast delivery tree may want to join a multicast delivery group (at some point in
the future), the protocol periodically removes the 'prune' information from its database and floods multicast messages to all
interfaces on that branch. The interval for removing 'prune' information is the Join/Prune Interval.
To configure PIMDM for an IP interface, click the PIMDM Interface Configuration link under the IP Multicast Routing
Protocols folder:
D-Link DES-3326S Layer 3 Switch
Description
Displays the name of the IP interface for which DVMRP is to be configured.
This must be a previously defined IP interface.
Displays the IP address corresponding to the IP Interface name entered
above.
This field allows an entry between 0 and 65,535 seconds and defines the
interval between 'probes'. The default is 10.
This field allows an entry between 1 and 65,535 seconds and defines the
time period for DVMRP will hold Neighbor Router reports before issuing
poison route messages. The default is 35 seconds.
This field allows an entry between 1 and 31 and defines the route cost for
the IP interface. The DVMRP route cost is a relative number that
represents the real cost of using this route in the construction of a multicast
delivery tree. It is similar to, but not defined as, the hop count in RIP. The
default cost is 1.
This field can be toggled between Enabled and Disabled and enables or
disables DVMRP for the IP interface. The default is Disabled.
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