Juniper Networks J-Series manual Using the mtrace monitor Command

Chapter 12: Using Services Router Diagnostic Tools

Table 125: CLI mtrace from-source Command Output Summary

Field	Description
hop-number	Number of the hop (router) along the path.
host	Hostname, if available, or IP address of the router. If the no-resolveoption was entered
	in the command, the hostname is not displayed.
ip-address	IP address of the router.
protocol	Protocol used.
ttl	TTL threshold.
Round trip time milliseconds ms	Total time between the sending of the query packet and the receiving of the response
	packet.
total ttl of number required	Total number of hops required to reach the source.
Source	Source IP address of the response packet.
Response Dest	Response destination IP address.
Overall	Average packet rate for all traffic at each hop.
Packet Statistics For Traffic From	Number of packets lost, number of packets sent, percentage of packets lost, and average
	packet rate at each hop.
Receiver	IP address receiving the multicast packets.
Query Source	IP address of the host sending the query packets.

Using the mtrace monitor Command

To monitor and display multicast trace operations, enter the mtrace monitor command:

user@host> mtrace monitor

Mtrace query at Apr 21	16:00:54 by 192.1.30.2, resp to 224.0.1.32, qid 2a83aa
packet from 192.1.30.2	to 224.0.0.2
from 192.1.30.2 to 192.1.4.1 via group 224.1.1.1 (mxhop=60)
Mtrace query at Apr 21	16:00:57 by 192.1.30.2, resp to 224.0.1.32, qid 25dc17
packet from 192.1.30.2	to 224.0.0.2
from 192.1.30.2 to 192.1.4.1 via group 224.1.1.1 (mxhop=60)
Mtrace query at Apr 21	16:01:00 by 192.1.30.2, resp to same, qid 20e046
packet from 192.1.30.2	to 224.0.0.2
from 192.1.30.2 to 192.1.4.1 via group 224.1.1.1 (mxhop=60)
Mtrace query at Apr 21	16:01:10 by 192.1.30.2, resp to same, qid 1d25ad
packet from 192.1.30.2	to 224.0.0.2

from 192.1.30.2 to 192.1.4.1 via group 224.1.1.1 (mxhop=60)

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