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PING statistics

To: <netdev@xxxxxxxxxxx>
Subject: PING statistics
From: "George E. Oakes" <oakes_ge@xxxxxxxxxxxx>
Date: Fri, 11 Apr 2003 16:33:28 -0400
Importance: Normal
Priority: normal
Sender: netdev-bounce@xxxxxxxxxxx
Thread-index: AcMAabZAcrqTTuCMQ9+PhZ0uxJGvIQ==
Hi,

I'm looking at a box with an embedded web server running uClinux 2.4.20
(Brecis) -

Run a ping on my loopback then stop it, and result of ping is 211 sent and
211 replies.

Look at the output of netstat -s

Under ICMP:

428 ICMP messages received
0 input ICMP message failed.
ICMP input historam:
  echo requests: 217 (unsure why this doesn't match 211 sent???????)
  echo replies:211
217 ICMP messages sent
0 ICMP messages failed:
ICMP output histogram:
  echo replies: 217

Output of netstat -i  for lo

Link encap: Local Loopback
inet addr: 127.0.0.1 Mask: 255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:422 errors:0 dropped:0 overruns:0 frame:0
TX packets:422 errors:0 dropped:0 overruns:0 frame:0 collisions:0
txqueuelen:0

My question: Why are RX and TX packets the same (adding echo request of 211
and echo reply of 211 to equal 422)?

Thanks for any light you can shed,

Regards
George Oakes
Technical Writer, Pannaway Technologies

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