3Com 3500 - Manual (Page 516)

516 C HAPTER 18: IP M ULTICAST
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 DVMRP 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 tunnel (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 affects the shape of
the IP multicast spanning 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