Re: icmp gaps

["Deepak Seshadri" <dseshadri@broadbandmaritime.com>]

Hi Askar,
These gaps indicate PING DROPS. If you stop the pinging, the last line before the command prompt will show you the statistics. You will see what the success %age was and how many packets were dropped. Do a traceroute and see at what node in your network the packets get dropped or experience a great delay.
I hope this helps.
Thank you,
Deepak

  ----- Original Message ----- 
  From: Askar 
  To: netfilter 
  Sent: Thursday, August 26, 2004 12:19 AM
  Subject: icmp gaps


  hi all

  Below is the output of ping to our billing server from on one of
  another server, when one look into "icmp_seq" sometime there is gap
  between two packets for example in icmp_seq=25 <---> icmp_seq=28 and
  icmp_seq=21 <---> icmp_seq=23.
  I just wants to know these gaps are normal or something to worried about?

  regards
  Askar


  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=0 ttl=61 time=6.65 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=2 ttl=61 time=22.5 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=3 ttl=61 time=9.77 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=4 ttl=61 time=26.9 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=5 ttl=61 time=22.6 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=8 ttl=61 time=13.1 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=9 ttl=61 time=40.4 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=10 ttl=61 time=24.0 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=11 ttl=61 time=18.9 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=12 ttl=61 time=5.80 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=13 ttl=61 time=26.1 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=14 ttl=61 time=26.6 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=15 ttl=61 time=16.9 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=16 ttl=61 time=7.64 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=17 ttl=61 time=8.67 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=18 ttl=61 time=8.04 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=19 ttl=61 time=5.86 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=21 ttl=61 time=6.14 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=23 ttl=61 time=5.82 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=24 ttl=61 time=5.84 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=25 ttl=61 time=11.1 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=28 ttl=61 time=5.89 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=29 ttl=61 time=5.81 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=30 ttl=61 time=5.79 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=31 ttl=61 time=13.3 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=32 ttl=61 time=5.79 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=33 ttl=61 time=8.52 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=35 ttl=61 time=25.1 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=36 ttl=61 time=8.17 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=38 ttl=61 time=5.97 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=39 ttl=61 time=6.04 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=40 ttl=61 time=13.4 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=41 ttl=61 time=29.1 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=42 ttl=61 time=26.0 ms
  64 bytes from ab.abc.net (xxx.xxxx.xx.xx): icmp_seq=43 ttl=61 time=12.9 ms
  -- 
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  Now, quiet! They're about to announce the lottery numbers..."
  - Homer Simpson