3Com 3500 - page 516

516 CHAPTER 18: IP MULTICAST
ip multicast dvmrp
✓ 3500
✓ 9000
9400
3900
9300
tunnels metric
For CoreBuilder 9000: Applies to Layer 3 switching modules only.
Modifies the metric or “cost” of an existing D VMRP tunnel.
Valid Minimum Configuration
ip m d t m
Important Consideration
■When you first define a tunnel, the system automatically assigns the
value 1 as the metric or “cost” of the tunne l (which is different from
the interface metric). Use this command to modify the metric value on
any existing tunnel.
Options
Prompt Definition Possible Values [Default]
tunnel Index number of the existing
DVMRP tunnel on which you
want to modify the metric
■A valid DVMRP
tunnel index
number
■? (for a list of
selectable
tunnel index
numbers)
–
metric DVMRP cost for the tunnel.
This value affect s the shape of
the IP multicast spannin g tree
when there are multiple paths
to the same downstream
destination. The lower cost
path is chosen first.
1 – 32 1 (factory
default), or
current value