[Nfd-dev] Loss Rate

[Lan Wang (lanwang)]

Sent from my iPhone

On Feb 13, 2015, at 11:28 PM, Lixia Zhang <lixia at cs.ucla.edu<mailto:lixia at cs.ucla.edu>> wrote:


On Feb 13, 2015, at 2:24 PM, Lan Wang (lanwang) <lanwang at memphis.edu<mailto:lanwang at memphis.edu>> wrote:

FYI, some information about the overlay link loss rate (measured with ping) over the testbed.  Loss rate is pretty low, e.g., 10 losses out of 100000 between UCLA and PKU at 100 pings per second (see below).

Lan

just curious: wonder if we know what may happen if we increase the rate to 500 pings/sec?

I am cc'ing John to see if he can do this on the testbed.

Lan



Begin forwarded message:

From: John DeHart <jdd at seas.wustl.edu<mailto:jdd at seas.wustl.edu>>
Subject: Re: Loss Rate
Date: August 19, 2014 3:30:23 PM CDT
To: "Lan Wang (lanwang)" <lanwang at memphis.edu<mailto:lanwang at memphis.edu>>, "marcsb at bellsouth.net<mailto:marcsb at bellsouth.net>" <marcsb at bellsouth.net<mailto:marcsb at bellsouth.net>>
Cc: "obaidasyed at gmail.com<mailto:obaidasyed at gmail.com>" <obaidasyed at gmail.com<mailto:obaidasyed at gmail.com>>


100,000 ping requests:

UCLA (spurs) to PKU (loss of 10 packets)

ndnops at spurs:~$ sudo ping -q -i 0.01 -c 100000 162.105.146.26
PING 162.105.146.26 (162.105.146.26) 56(84) bytes of data.

--- 162.105.146.26 ping statistics ---
100000 packets transmitted, 99990 received, 0% packet loss, time 1112399ms
rtt min/avg/max/mdev = 148.080/155.447/970.675/43.102 ms, pipe 96



TONGJI to CAIDA (loss of 8 packets):

ndnops at ndnops:~$ sudo ping -q -i 0.01 -c 100000 click.caida.org<http://click.caida.org/>
PING click.caida.org<http://click.caida.org/> (192.172.226.248) 56(84) bytes of data.

--- click.caida.org<http://click.caida.org/> ping statistics ---
100000 packets transmitted, 99992 received, 0% packet loss, time 1371267ms
rtt min/avg/max/mdev = 181.647/202.676/251.866/12.110 ms, pipe 19

On 8/19/14, 2:37 PM, John DeHart wrote:

And here is a similar pair of results for 10000 pings trying at 100 requests per second.
Let me know if this level of result helps at all.

UCLA (spurs) to PKU:

ndnops at spurs:~$ sudo ping -q -i 0.01 -c 10000 162.105.146.26
PING 162.105.146.26 (162.105.146.26) 56(84) bytes of data.

--- 162.105.146.26 ping statistics ---
10000 packets transmitted, 10000 received, 0% packet loss, time 109146ms
rtt min/avg/max/mdev = 148.050/154.401/631.033/39.391 ms, pipe 63
ndnops at spurs:~$


TONGJI to CAIDA (1 loss out of 10000)

ndnops at ndnops:~$ sudo ping -q -i 0.01 -c 10000 click.caida.org<http://click.caida.org/>
PING click.caida.org<http://click.caida.org/> (192.172.226.248) 56(84) bytes of data.

--- click.caida.org<http://click.caida.org/> ping statistics ---
10000 packets transmitted, 9999 received, 0% packet loss, time 136946ms
rtt min/avg/max/mdev = 181.710/193.677/210.785/5.104 ms, pipe 17
ndnops at ndnops:~$
On 8/19/14, 2:22 PM, John DeHart wrote:

Here are two initial tests doing 1000 ping requests,
using approximately 10 ping requests per second.

UCLA (spurs) to PKU:
ndnops at spurs:~$ sudo ping -q -i 0.1 -c 1000 162.105.146.26
PING 162.105.146.26 (162.105.146.26) 56(84) bytes of data.

--- 162.105.146.26 ping statistics ---
1000 packets transmitted, 1000 received, 0% packet loss, time 100958ms
rtt min/avg/max/mdev = 148.277/166.666/597.244/67.553 ms, pipe 6



TONGJI to CAIDA:
ndnops at ndnops:~$ sudo ping -q -i 0.1 -c 1000 click.caida.org<http://click.caida.org/>
PING click.caida.org<http://click.caida.org/> (192.172.226.248) 56(84) bytes of data.

--- click.caida.org<http://click.caida.org/> ping statistics ---
1000 packets transmitted, 1000 received, 0% packet loss, time 106763ms
rtt min/avg/max/mdev = 181.729/224.260/270.358/19.935 ms, pipe 3

John

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/nfd-dev/attachments/20150214/d83f7512/attachment.html>