Bug 146

Summary: ping shows buggy numbers about packets
Product: [Retired] Red Hat Linux Reporter: pavel.janik
Component: abootAssignee: David Lawrence <dkl>
Status: CLOSED DUPLICATE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 5.2CC: pavel.janik
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 1999-04-17 17:21:17 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description pavel.janik 1998-11-20 11:26:25 UTC
Try

ping -f localhost as root it should be obvious:

--- localhost ping statistics ---
1847 packets transmitted, 177 packets received, 90% packet
loss
round-trip min/avg/max = 0.9/42.4/84.9 ms

90% is bad...

Comment 1 Preston Brown 1998-11-20 11:44:59 UTC
Not a bug, you are flood pinging.  Not every ping request will come
back.

You are hammering the networking code in the kernel, it can't keep up.

Comment 2 Marc MERLIN 1998-11-28 06:59:59 UTC
Actually Pavel is most likely using a recent 2.1 kernel. There is a
known problem with the ping binary.
Please look at:
http://www.egroups.com/list/linux-kernel/77859.html
http://www.egroups.com/list/linux-kernel/78066.html

(If you don't know who Alexey Kuznetsov is, he did a _lot_ of TCP/IP
work in the 2.1 kernels)

Comment 3 Jeff Johnson 1999-04-17 17:21:59 UTC
*** This bug has been marked as a duplicate of 213 ***