mtrace

The mtrace command displays multicast traceroute towards specified IPv4 source and group address.

Command Syntax

• From the ">" prompt, use the following format,

mtrace source <ipv4-src-addr> [group <ipv4-group-addr>]

• From the "#" prompt, add run in front of the command,

run mtrace source <ipv4-src-addr> [group <ipv4-group-addr>]

Parameters

Example

• The following example traces with multicast source:

admin@PICOS> mtrace source 1.1.1.100 
* Mtrace from 1.1.1.100 to 3.3.3.30 via group 0.0.0.0
Querying full reverse path...
 * switching to hop-by-hop:
  0  ? (3.3.3.30) 
 -1  ? (3.3.3.3) PIM thresh^ 1
Round trip time 3 ms; total ttl of 1 required.

• The following example traces with multicast source and group address: 

admin@PICOS# run mtrace source 1.1.1.100 group 224.1.1.1 
* Mtrace from 1.1.1.100 to 3.3.3.30 via group 224.1.1.1
Querying full reverse path...
 * switching to hop-by-hop:
  0  ? (3.3.3.30) 
 -1  ? (3.3.3.3) PIM (S,G) thresh^ 1
Round trip time 3 ms; total ttl of 1 required.

In the display result, "0" represents the switch currently executing mtrace, "-1" represents the first hop starting from the current switch and its interface IP address is 3.3.3.3.