Displays the route that packets take from a multicast source.
Output shows routes from the source host to the host on which the command is entered.
- The host that is the source for the trace. The host is either a name (if DNS is being used on the network) or an IPv4 or IPv6 unicast address.
- The host that is the destination for the trace. The host is either an IPv4 or IPv6 unicast address.
- The multicast group to trace. The format is an IPv4 or IPv6 multicast address.
- Displays detailed output. This output includes IP multicast packet-rate and packet-loss information.
Use this command to show the path from a source to a receiver in a multicast network.
The following example displays a trace from 10.14.0.1 through 10.12.0.2 using group 188.8.131.52.
vyatta@vyatta:~$ mtrace 10.14.0.1 destination 10.12.0.2 group 184.108.40.206 Mtrace from 10.14.0.1 to 10.12.0.2 via group 220.127.116.11 Querying full reverse path... 0 ? (10.12.0.2) -1 ? (10.12.0.2) PIM thresh^ 1 RPF interface -2 ? (10.12.0.1) PIM thresh^ 1 -3 ? (10.14.0.1) Round trip time 1 ms
The following example displays a detailed trace from 10.14.0.1 through 10.12.0.2 using group 18.104.22.168.
vyatta@vyatta:~$ mtrace 10.14.0.1 destination 10.12.0.2 group 22.214.171.124 detail Mtrace from 10.14.0.1 to 10.12.0.2 via group 126.96.36.199 Round trip time 0 ms Waiting to accumulate statistics... Results after 10 seconds: Source Response Dest Packet Statistics For Only For Traffic 10.14.0.1 10.12.0.2 All Multicast Traffic From 10.14.0.1 v __/ rtt 0 ms Lost/Sent = Pct Rate To 188.8.131.52 10.14.0.1 10.12.0.1 v ^ ttl 1 0 0 pps 0 0 pps 10.12.0.2 RPF interface v \__ ttl 2 10.12.0.2 10.12.0.2 Receiver Query Source