Packet loss on Redhat AS 3 server ?

I have an interface on a Redhat AS 3 server that is showing packet
loss.

I have checked the switch (it a home run to a 6509) and there are no
errors on the switch.

I have performed a packet trace from the switch and the ping request
packets are leaving
the switch, when loss occurs it's the redhat end not responding.

Here is an ifconfig output, you can see that I have aliased 3 IP
addresses onto the
eth1 nic. I can see carrier incrementing on the eth1 interface.


dev24381 Link encap:Ethernet HWaddr 00:01:03:E1:97:3A
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:20 Base address:0xa000

eth1 Link encap:Ethernet HWaddr 00:01:03:E1:97:4B
inet addr:10.3.3.102 Bcast:10.3.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3683847 errors:0 dropped:0 overruns:0 frame:0
TX packets:18959565 errors:0 dropped:0 overruns:0
carrier:18929603
collisions:0 txqueuelen:1000
RX bytes:568465888 (542.1 Mb) TX bytes:568820024 (542.4 Mb)
Interrupt:16 Base address:0x2200

eth1:1 Link encap:Ethernet HWaddr 00:01:03:E1:97:4B
inet addr:10.3.3.103 Bcast:10.3.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:16 Base address:0x2200

eth1:2 Link encap:Ethernet HWaddr 00:01:03:E1:97:4B
inet addr:10.3.3.104 Bcast:10.3.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:16 Base address:0x2200

eth2 Link encap:Ethernet HWaddr 00:01:03:E3:83:43
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:24 Base address:0xa080

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:692984 errors:0 dropped:0 overruns:0 frame:0
TX packets:692984 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:53175983 (50.7 Mb) TX bytes:53175983 (50.7 Mb)

Any ideas ?

.

Relevant Pages

  • Re: Packet loss on Redhat AS 3 server ?
    ... I have checked the switch and there are no ... I have performed a packet trace from the switch and the ping request ... when loss occurs it's the redhat end not responding. ... UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 ...
    (linux.redhat)
  • Re: Whats gonna happen if two clients in the same LAN have the same MAC address?
    ... Hub just makes one machine seeing the conflict more likely ... as all packets route to all ports of hub, unlike switch. ... Perhaps bad packet ... >> the two machines, as would be so in fully switched setup). ...
    (microsoft.public.windows.server.security)
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  • Re: How do network switches work?
    ... million packets a second if each port is saturated. ... responsible for deciding which port each packet goes to. ... functionality happens in a general purpose CPU. ... Do you know of any well-documented switch chips ...
    (comp.os.linux.networking)
  • Re: How do network switches work?
    ... million packets a second if each port is saturated. ... responsible for deciding which port each packet goes to. ... functionality happens in a general purpose CPU. ... Do you know of any well-documented switch chips ...
    (comp.os.linux.networking)