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DES-3326S Layer 3 Fast Ethernet Switch User’s Guide
Web-Based Switch Management 245
Neighbor Timeout
Interval <35>
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.
Metric <1> 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.
State <Disabled>
This field can be toggled between
Enabled and Disabled and enables or
disables DVMRP for the IP interface.
The default is Disabled.
PIM-DM Settings
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.