Ping replies getting reordered ...

Ping replies getting reordered ...

Post by Tom Leitne » Wed, 26 Sep 2001 22:03:34



Hi,

Anybody any idea what could cause such a ping reply in a LAN:

root# ping zirbitz
PING zirbitz (10.16.133.80): 56 data bytes
64 bytes from 10.16.133.80: icmp_seq=0 ttl=255 time=490 ms
64 bytes from 10.16.133.80: icmp_seq=2 ttl=255 time=3 ms
64 bytes from 10.16.133.80: icmp_seq=1 ttl=255 time=1023 ms
64 bytes from 10.16.133.80: icmp_seq=4 ttl=255 time=2 ms
64 bytes from 10.16.133.80: icmp_seq=3 ttl=255 time=1012 ms
64 bytes from 10.16.133.80: icmp_seq=6 ttl=255 time=0 ms
64 bytes from 10.16.133.80: icmp_seq=5 ttl=255 time=1001 ms
64 bytes from 10.16.133.80: icmp_seq=8 ttl=255 time=0 ms
64 bytes from 10.16.133.80: icmp_seq=7 ttl=255 time=1001 ms
64 bytes from 10.16.133.80: icmp_seq=10 ttl=255 time=9 ms
64 bytes from 10.16.133.80: icmp_seq=9 ttl=255 time=1011 ms
64 bytes from 10.16.133.80: icmp_seq=12 ttl=255 time=0 ms
64 bytes from 10.16.133.80: icmp_seq=11 ttl=255 time=1001 ms
64 bytes from 10.16.133.80: icmp_seq=14 ttl=255 time=0 ms
64 bytes from 10.16.133.80: icmp_seq=13 ttl=255 time=1001 ms
64 bytes from 10.16.133.80: icmp_seq=16 ttl=255 time=3 ms
64 bytes from 10.16.133.80: icmp_seq=15 ttl=255 time=1009 ms

Again this is in a LAN and there are no routers involved. Also other boxes
on the LAN can be pinged just fine so that the Linux box must have some
problem. It's an older Pentium with 200MHz, 64MB RAM and an OvisLink
(Realtek) Network card. It's running RedHat 7.1. See below for more
detailled specs.

Anybody seen this? What could cause this and what can I do about it?

Thanks // Tom

Config details:
  Bus  0, device   9, function  0:
    Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 16).
      IRQ 5.
      Master Capable.  Latency=32.  Min Gnt=32.Max Lat=64.
      I/O at 0xb800 [0xb8ff].
      Non-prefetchable 32 bit memory at 0xe5800000 [0xe58000ff].

netstat -i
Kernel Interface table
Iface   MTU Met    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0   1500   0  2117502      0      0      0  1556380      6     16      0 BRU
lo    16436   0       57      0      0      0       57      0      0      0 LRU

 netstat -r
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
10.16.133.64    *               255.255.255.224 U        40 0          0 eth0
127.0.0.0       *               255.0.0.0       U        40 0          0 lo
default         10.16.133.66    0.0.0.0         UG       40 0          0 eth0

 arp -a
? (10.16.133.66) at 00:60:5C:F3:74:66 [ether] on eth0
YYYYYY (10.16.133.67) at 08:00:2B:C3:62:10 [ether] on eth0

--
Dr. Tom Leitner             Dept. of Communications, Graz Univ. of Technology,


 
 
 

Ping replies getting reordered ...

Post by Dean Thompso » Thu, 27 Sep 2001 01:16:22


Hi!,

Quote:> Anybody any idea what could cause such a ping reply in a LAN:

> root# ping zirbitz
> PING zirbitz (10.16.133.80): 56 data bytes
> 64 bytes from 10.16.133.80: icmp_seq=0 ttl=255 time=490 ms
> 64 bytes from 10.16.133.80: icmp_seq=2 ttl=255 time=3 ms
> 64 bytes from 10.16.133.80: icmp_seq=1 ttl=255 time=1023 ms
> 64 bytes from 10.16.133.80: icmp_seq=4 ttl=255 time=2 ms
> 64 bytes from 10.16.133.80: icmp_seq=3 ttl=255 time=1012 ms
> 64 bytes from 10.16.133.80: icmp_seq=6 ttl=255 time=0 ms
> 64 bytes from 10.16.133.80: icmp_seq=5 ttl=255 time=1001 ms
> 64 bytes from 10.16.133.80: icmp_seq=8 ttl=255 time=0 ms
> 64 bytes from 10.16.133.80: icmp_seq=7 ttl=255 time=1001 ms
> 64 bytes from 10.16.133.80: icmp_seq=10 ttl=255 time=9 ms
> 64 bytes from 10.16.133.80: icmp_seq=9 ttl=255 time=1011 ms
> 64 bytes from 10.16.133.80: icmp_seq=12 ttl=255 time=0 ms
> 64 bytes from 10.16.133.80: icmp_seq=11 ttl=255 time=1001 ms
> 64 bytes from 10.16.133.80: icmp_seq=14 ttl=255 time=0 ms
> 64 bytes from 10.16.133.80: icmp_seq=13 ttl=255 time=1001 ms
> 64 bytes from 10.16.133.80: icmp_seq=16 ttl=255 time=3 ms
> 64 bytes from 10.16.133.80: icmp_seq=15 ttl=255 time=1009 ms

Does your route table look okay ?, you don't have two default routes at all ?

See ya

Dean Thompson

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