Setup Guide

Scenario Output
103.103.103.0/24
-3 2.2.2.1 PIM -
103.103.103.0/24
-4 103.103.103.3 --> Source
--------------------------------------------------------------
----
You can issue the mtrace command by
providing the source and multicast
information. However, if the multicast group
is a shared group (*,G), then mtrace traces
the path of the shared tree until it reaches
the RP. The source mask eld reects the
shared tree that is being used to trace the
path. The shared tree is used even in case
where the source provided is not valid.
R1>mtrace 3.3.3.3 1.1.1.1 226.0.0.3
Type Ctrl-C to abort.
Querying reverse path for source 3.3.3.3 to destination
1.1.1.1 via group 226.0.0.3
From source (?) to destination (?)
--------------------------------------------------------------
---
|Hop| OIF IP |Proto| Forwarding Code |Source Network/
Mask|
--------------------------------------------------------------
---
0 1.1.1.1 --> Destination
-1 1.1.1.1 PIM - shared
tree
-2 12.12.12.1 PIM Reached RP/Core shared
tree
--------------------------------------------------------------
----
When you issue the mtrace command with
the source and multicast group information, if
a multicast route is not present on a
particular node, then the NO ROUTE error
code is displayed on the node. In this
scenario, the Source Network/Mask column
for that particular node displays the the value
as default.
R1>mtrace 6.6.6.6 4.4.4.5 234.1.1.1
Type Ctrl-C to abort.
Querying reverse path for source 6.6.6.6 to destination
4.4.4.5 via group 234.1.1.1
From source (?) to destination (?)
--------------------------------------------------------------
---
|Hop| OIF IP |Proto| Forwarding Code |Source Network/
Mask|
--------------------------------------------------------------
---
0 4.4.4.5 --> Destination
-1 4.4.4.4 PIM -
6.6.6.0/24
-2 20.20.20.2 PIM - 6.6.6.0/24
-3 10.10.10.1 PIM No route default
--------------------------------------------------------------
----
If you invoke a weak mtrace query (without
the multicast group details) and the RPF
neighbor on one of the nodes to the source is
not PIM enabled, the output of the command
displays a NO ROUTE error code in the
Forwarding Code column. In the command
output, the entry for that node in the Source
Network/Mask column displays the value as
default.
R1>mtrace 6.6.6.6 4.4.4.5
Type Ctrl-C to abort.
Querying reverse path for source 6.6.6.6 to destination
4.4.4.5 via group 234.1.1.1
From source (?) to destination (?)
--------------------------------------------------------------
---
|Hop| OIF IP |Proto| Forwarding Code |Source Network/
Mask|
--------------------------------------------------------------
---
0 4.4.4.5 --> Destination
-1 4.4.4.4 PIM -
6.6.6.0/24
-2 20.20.20.2 PIM - 6.6.6.0/24
658 Multicast Features