Ip Multicast Dvmrp Interface Mode - 3Com 4007 Command Reference Manual

ip multicast dvmrp
interface mode
Layer 2
Switching
Modules
Multilayer
Switching
Modules
Enables or disables the Distance-Vector Multicast Routing Protocol
(DVMRP) per routing interface on a Multilayer Switching Module. This
protocol facilitates router-to-router communication for building
source-rooted spanning trees that deliver IP multicast traffic to IP
multicast group members.
Valid Minimum Abbreviation
ip m d i m
Important Considerations
Normal IP routing should be enabled before you enable DVMRP.
When DVMRP is enabled on an interface, the interface is configured
with the default value of 1 for the metric, which you can modify at
any time. See "ip multicast dvmrp interface metric" later in this
chapter.
If DVMRP is enabled on any interface, IGMP functions should also be
enabled on the module. See "ip multicast igmp snooping" later in this
chapter.
If DVMRP is disabled, the interface cannot participate in building
spanning trees for IP multicast. However, as long as IGMP snooping is
enabled, the interface forwards appropriate IP multicast traffic to
downstream group members. If IGMP snooping is disabled, then the
interface only forwards IP multicast traffic with addresses in the
reserved range.
Options
Prompt Description
IP interface Index number of the interface
for which you want to enable
or disable DVMRP
DVMRP Whether DVMRP mode is
mode enabled or disabled
Possible Values [Default]
A valid IP –
interface index
number
all
? (for a list of
selectable
indexes)
enabled disabled (factory
default), or
disabled
current value
327