Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

ping -l

Posted on 2011-02-15
6
Medium Priority
?
1,091 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 1200 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
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
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 800 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

Plesk WordPress Toolkit

Plesk's WordPress Toolkit allows server administrators, resellers and customers to manage their WordPress instances, enabling a variety of development workflows for WordPress admins of all skill levels, from beginners to pros.

See why 2/3 of Plesk servers use it.

Question has a verified solution.

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

During and after that shift to cloud, one area that still poses a struggle for many organizations is what to do with their department file shares.
In this article, we’ll look at how to deploy ProxySQL.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
Suggested Courses

618 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