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3Com 3500 User Manual

Page 510

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510

C

HAPTER

18: IP M

ULTICAST

Fields in the IP Multicast DVMRP Tunnels Summary Display

Field

Description

Index

Tunnel index number, which is different from the routing
interface index number that is shown under

Index

in

other displays.

Local address

IP address of the local interface that serves as one of two
multicast tunnel end points.

Remote address

IP address of the remote interface (a different system, a
different subnetwork) that serves as the other multicast
tunnel end point.

Metric

DVMRP cost of the tunnel. The system assigns a value of 1
when you define the tunnel, but you can modify that
value at any time (see “ip multicast dvmrp tunnels
metric”)
. This value can be different from the metric that
you assigned to the interface itself (see “ip multicast
dvmrp interface metric”)
.

TTL

Time-to-live (TTL) threshold of the tunnel. The system
assigns a value of 1 when you define the tunnel, but you
can modify that value at any time (see “ip multicast dvmrp
tunnels threshold”)
. This value can be different from the
TTL threshold that you assigned to the interface itself (see
“ip multicast igmp interface TTL”).

State

Role that the interface in the multicast delivery tree. For
possible entries and definitions, see “ip multicast dvmrp
interface summary”
earlier in this chapter.