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What information does pathping give you?

How can routers closer have higher RTT than routers farther away?

This Node/Link tells how much loss for packets sent to the router ip address and the loss between the router and the next router? Which direction?

Source to Here tells how much loss between my computer running pathping and that router?

D:\>pathping -n corp1

Tracing route to corp1 [10.54.1.196]
over a maximum of 30 hops:
0 172.16.87.35
1 172.16.87.218
2 192.168.52.1
3 192.168.80.1
4 10.54.247.14
5 10.54.1.196

Computing statistics for 125 seconds...
Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 172.16.87.35
0/ 100 = 0% |
1 41ms 0/ 100 = 0% 0/ 100 = 0% 172.16.87.218
13/ 100 = 13% |
2 22ms 16/ 100 = 16% 3/ 100 = 3% 192.168.52.1
0/ 100 = 0% |
3 24ms 13/ 100 = 13% 0/ 100 = 0% 192.168.80.1
0/ 100 = 0% |
4 21ms 14/ 100 = 14% 1/ 100 = 1% 10.54.247.14
0/ 100 = 0% |
5 24ms 13/ 100 = 13% 0/ 100 = 0% 10.54.1.196

Trace complete.

SOLUTION

TheCleaner

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aliadamz2010

also this may be helpful for you:

http://technet.microsoft.com/en-us/library/cc958876.aspx

TheCleaner

aliadamz2010,

That's where he got his "example"...at least part of his data is from that link. He changed his external IPs to match the article.

My guess was that he read the article and was still needing clarification...

Dragon0x40

ASKER

Still need some more clarification. RTT and loss over link designated by the pipe sign | seem to be measuring the speed and loss of the links between router 1 and 2, 2 and 3 etc.

I still don't understand two other calculations. I put a <-- beside what I am unsure about.

Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 172.16.87.35 <--- comp running pathping
0/ 100 = 0% |
1 41ms 0/ 100 = 0% 0/ 100 = 0% 172.16.87.218
13/ 100 = 13% | <--- pkt loss over link 87.218 to 52.1
2 22ms 16/ 100 = 16% 3/ 100 = 3% 192.168.52.1
0/ 100 = 0% |
3 24ms 13/ 100 = 13% 0/ 100 = 0% 192.168.80.1 <- pkt loss 87.35 dest for 80.1
0/ 100 = 0% |
4 21ms 14/ 100 = 14%<-loss 247.14 to 87.35 1/ 100 = 1% 10.54.247.14
0/ 100 = 0% |
5 24ms 13/ 100 = 13% 0/ 100 = 0% 10.54.1.196

Trace complete.

I did read some information on pathping before submitting this question but I did not understand everything.

SOLUTION

TheCleaner

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Dragon0x40

ASKER

You explained it very well! Thank you.

I have one question and I can open another question for it.

How does my computer running path ping. Determine RTT and packet loss from one router to the next?

For example the router in hop 2 doesn't physically send a ping to the router in hop 3?

All the pings come from my computer running the pathping correct?

SOLUTION

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ASKER CERTIFIED SOLUTION

giltjr

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