Hi List,
I am running a x86_64 Centos server, after a reboot the network has decided to
not work.. this particular machine has 8 eth ports eth0-7. eth0 and eth3 were
bonded (mode 1 ) after reboot the bond did not work. It came up OK but no
data was passing through it. all other interfaces on the machine were working.
I decided to remove the bond, so after removing the bond i was left with eth0
using the same IP as the bond used. however it still does the same thing,
it starts up with no errors but i cannot even ping the default gateway,
tcpdump shows nothing on the interface.
I have made sure of the following
* no iptables installed
* kernel modules for the NIC are loaded with no errors
* the bond kernel module is not installed / all bond configs have been removed
Below is some info on the interface, it should be noted that all others are OK
the only 2 that were having the issue are eth0 and eth3 (the ex-bonded ones)
server1:/etc/sysconfig/network-scripts# ip route | grep 172.18
172.18.16.0/24 dev eth0 proto kernel scope link src 172.18.16.1
default via 172.18.16.254 dev eth0
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:24:49:C8:66:98
inet addr:172.18.16.1 Bcast:172.18.16.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:7223 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:463918 (453.0 KiB)
Interrupt:226 Memory:dc000000-dc012800
If you look closely TX and RX are massively different, but I am not
seeing anything on tcpdump even there is a large number of TX packets.
Any ideas?
Nathan
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