Hi John, looks like it's a normal behaviour with duplicate IP in the
network.
Is this problem reproduced with eth0 and eth0:2 IPs?
Could you try with another IP for eth0:1?
When the problem is happening, could you execute an "arp -a" from your
system and check if the MAC address is the same as eth0:1 MAC address
asigned?
Also a tcpdump from your system could be useful to know what is happening.
Regards,
Laura.
On Wed, May 23, 2012 at 12:24 PM, John Cooper <[email protected]>wrote:
> Hi, I'm running v2stable on VMware ESX as a standalone. I am load
> balancing to 2 servers on port 80 and 443. Intermittently the load
> balanced IP 172.16.101.10 (eth0:1) just disappears off the network and
> is not pingable. Load balancing of web traffic stops Is pingable on the
> loadbalancer. If I run on the LB
>
> /usr/bin/arping -c 2 -A -I eth0 172.16.101.10
>
> it is pingable externally and load balancer starts working again. Spoke
> to Zen LB support and they suggest it is a VMware issue, switch? Can
> anyone give advice on how VMware switch should be configure. I intend to
> run a cluster again once this problem is fixed.
>
> eth0 Link encap:Ethernet HWaddr 00:50:56:9d:XX:fb
> inet addr:172.16.101.236 Bcast:172.16.101.255
> Mask:255.255.255.0
> inet6 addr: fe80::250:56ff:fe9d:11fb/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:2426885 errors:0 dropped:0 overruns:0 frame:0
> TX packets:718397 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:723614399 (690.0 MiB) TX bytes:582671944 (555.6 MiB)
>
> eth0:1 Link encap:Ethernet HWaddr 00:50:56:9d:XX:fb
> inet addr:172.16.101.10 Bcast:172.16.101.255 Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>
> eth0:2 Link encap:Ethernet HWaddr 00:50:56:9d:XX:fb
> inet addr:172.16.101.12 Bcast:172.16.101.255 Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:6264 errors:0 dropped:0 overruns:0 frame:0
> TX packets:6264 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:341370 (333.3 KiB) TX bytes:341370 (333.3 KiB)
>
>
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