3Com 3500 - page 520

520 CHAPTER 18: IP MULTICAST
ip multicast dvmrp
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✓ 9000
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default
For CoreBuilder 9000: Applies to Layer 3 switching modules only.
Configures a default route for IP multicast traffic on a DVMRP interface.
This interface advertises itself as a default route to neighboring DVMRP
routers.
Valid Minimum Abbreviation
ip m d d
Important Considerations
■A default route metric of 0 means that the default route function is
not activated on the interface (interface doe s not advertise 0.0.0.0 to
DVMRP routers). Values other than 0 means that the default route
function is activated and these values represent the “cost” of the
default route.
■Definitions of default route modes:
■all — The interface advertises the default route plus all other
known routes to neighboring DVMRP routers.
■only — The interface advertises only the default route to
neighboring DVMRP routers.
If the system learns a default route, it propagates it no matter which
mode is set on a given interface.
■The system allows you to configure an interface as a DVMRP default
route, even when DVMRP is disabled on the interface. If DVMRP is
disabled, the interface does not advertise itself as a default route.
Options
Prompt Definition Possible Values [Default]
interface Index number of the routing
interface on which you want to
configure a default route
■A valid interface
index number
■? (for a list of
selectable
indexes)
1 (factory
default), or
current value
default
route metric
Value that you assign to the
default route as the “cost” of
that route
0 – 32 0 (factory
default), or
current value
default
route
advertise
mode
Routes that the interface
advertises to neighboring
DVMRP routers
■all
■only
all (factory
default), or
current value