Solved

ping -l

Posted on 2011-02-15
6
1,087 Views
Last Modified: 2012-05-11
whats the maximum value you can use for a ping -l

is this the same as the mtu value thats configured on the switch?

Thanks
0
Comment
Question by:jly999
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
6 Comments
 
LVL 25

Accepted Solution

by:
RobMobility earned 300 total points
ID: 34896679
Hi,

I don't believe there is a limit in Windows - if the MTU size is exceeded, then the packet will be fragmented. You can prevent this by adding -f switch.

In other OS, there is a limit.

More information here:

http://msdn.microsoft.com/en-us/library/cc737478(v=ws.10).aspx

Regards,


RobMobility.
0
 

Author Comment

by:jly999
ID: 34896751
so if i'm seeing timeouts with  >ping -l 64000 could that indicate a network problem ?
pings below  24000 show no issue

I did think  1500-byte packet was the largest allowed..?
0
 
LVL 25

Expert Comment

by:RobMobility
ID: 34896783
Hi,

If you send a packet larger than the MTU, it's fragmented. If you include the -f switch, then packets are not fragmented.

Regards,


RobMobility.
0
Report: Liquid Web beats Amazon, Rackspace & More

A study by performance analyst firm Cloud Spectator finds that Liquid Web beats rivals Amazon, Rackspace and DigitalOcean when it comes to website and cloud application performance.

 
LVL 25

Expert Comment

by:RobMobility
ID: 34896797
Hi,

It looks like 65535 including the ICMP header is the largest size permnittable for ping.

Regards,


RobMobility.
0
 
LVL 25

Expert Comment

by:RobMobility
ID: 34896815
Hi,

Thats IPv4 packet size maximum, although it is often regarded as the Ping Of Death as a buffer overrun can occur with such large pings.

Regards,


RobMobility.
0
 
LVL 24

Assisted Solution

by:rfc1180
rfc1180 earned 200 total points
ID: 34899538
64000 Bytes requires 512Kbps worth of bandwidth.
At 1500 bytes for the MTU, that would be 42 packets a second  (not including overhead at layer 2 and 3) assuming fragmentation on the intermdiary nodes (Routers). So, if you do not have the resources (Bandwidth, CPU, PPS, etc.) to handle that, you will get packet loss.

Billy
0

Featured Post

Report: Liquid Web beats Amazon, Rackspace & More

A study by performance analyst firm Cloud Spectator finds that Liquid Web beats rivals Amazon, Rackspace and DigitalOcean when it comes to website and cloud application performance.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
sharing subnet on sonicwall 10 53
WDS can't PXE boot 3 82
Raid 6 or Raid 10 configuration 10 114
Exchange 2016 4 51
Today, still in the boom of Apple, PC's and products, nearly 50% of the computer users use Windows as graphical operating systems. If you are among those users who love windows, but are grappling to keep the system's hard drive optimized, then you s…
PRTG Network Monitor lets you monitor your bandwidth usage, so you know who is using up your bandwidth, and what they're using it for.
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question