
Multicasting Tools
117355-A Rev. A B-3
<source>
is the source of the multicast tree.
<destination>
is the receiver for a particular multicast group.
[
<group>
] is a multicast group. The default group is 224.2.0.1. If you do not
specify a group, Mtrace does not display statistics.
For example, the following
mtrace command specfies source 192.32.27.193,
destination 192.32.199.162 and group 224.2.0.1.
$ mtrace 192.32.27.193 192.32.199.162 224.2.0.1
Mtrace from 192.32.27.193 to 192.32.199.162 via group 224.2.0.1
Querying full reverse path...
0 192.32.199.162
-1 192.32.199.162 DVMRP thresh^ 1
-2 192.32.27.193
Round trip time 1039 ms; total ttl of 2 required.
Waiting to accumulate statistics...
Source Response Dest Overall Packet Statistics For Traffic
From
192.32.27.193 192.32.199.161 Packet 192.32.27.193 To 224.2.0.1
v __/ rtt 3ms Rate Lost/Sent = Pct Rate
192.32.27.193
192.32.199.162
v \__ ttl 2 0 pps
192.32.199.162 * * *
Receiver Query Source
-S
<statint>
Change the interval between statistics gathering traces to
interval seconds. The default
<statint>
value is 10 seconds.
-t
<ttl>
Mtrace sets the time-to-live (TTL) for multicast trace queries and
responses to the value you specify. TTL equals the number of
hops. The default
<ttl>
value is 127 hops. For local queries to the
“all queries” multicast gtroup, the default is 1 hop.
-U Mtrace always requests the response using unicast rather than
attempting multicast first.
-v Mtrace uses verbose mode. In verbose mode, Mtrace shows hop
times on the initial trace and statistics display. Mtrace also shows
the route that was used to forward the initial trace.
-w
<wait>
Mtrace sets the time to wait for a trace response to seconds. The
default
<wait>
value is 3 seconds.
Table B-1. Meanings of Mtrace Options
(continued)
Option Meaning
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