J-series™ Services Router Administration Guide

Table 124: CLI mtrace from-source Command Options (continued)

Option

Description

multicast-response

(Optional) Forces the responses to use multicast.

unicast-response

(Optional) Forces the response packets to use unicast.

no-resolve

(Optional) Does not display hostnames.

no-router-alert

(Optional) Does not use the router alert IP option in the IP header.

brief

(Optional) Does not display packet rates and losses.

detail

(Optional) Displays packet rates and losses if a group address is specified.

Following is sample output from the mtrace from-sourcecommand:

user@host> mtrace from-source source 192.1.4.1 group 224.1.1.1 Mtrace from 192.1.4.1 to 192.1.30.2 via group 224.1.1.1 Querying full reverse path... * *

0 ? (192.1.30.2)

-1 ? (192.1.30.1) PIM thresh^ 1

-2 routerC.mycompany.net (192.1.40.2) PIM thresh^ 1 -3 hostA.mycompany.net (192.1.4.1)

Round trip

time 22 ms; total ttl

of 2 required.

Waiting to

accumulate statistics

...Results after 10 seconds:

Source

Response Dest

Overall

Packet Statistics For Traffic From

192.1.4.1

192.1.30.2

Packet

192.1.4.1 To 224.1.1.1

v

__/ rtt

16 ms

Rate

Lost/Sent = Pct Rate

192.168.195.37

192.1.40.2routerC.mycompany.net

v ^ ttl 20/0 = -- 0 pps 192.1.40.1

192.1.30.1?

v

\__ ttl

3

?/0

0 pps

192.1.30.2192.1.30.2

Receiver

Query Source

Each line of the trace display is usually in the following format (depending on the options selected and the responses from the routers along the path):

hop-number host (ip-address)protocolttl

Table 125 on page 243 summarizes the output fields of the display.

NOTE: The packet statistics gathered from Juniper Networks routers and routing nodes are always displayed as 0.

242Using CLI Diagnostic Commands

Page 264
Image 264
Juniper Networks J-Series On page 243 summarizes the output fields of the display, CLI mtrace from-source Command Options