Hi Laura, I checked on the core switch and there wasn't any duplicate mac addresses. It is only happening on the loadbalanced IP, not the other two. I've built another zen server on a completely different network range so will see if it happens there.
Thanks, John. On 23/05/12 12:54, Laura Garcia wrote: > 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] <mailto:[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 <tel: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) > > > This email is intended only for the person to whom it is addressed > and may contain confidential information. If you have received > this email in error, please notify the sender and delete this > email, which must not be copied, distributed or disclosed to any > other person. > Any views or opinions presented are solely those of the author and > do not necessarily represent those of Bournemouth University or > its subsidiary companies. Nor can any contract be formed on behalf > of the University or its subsidiary companies via email. > > > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. > Discussions > will include endpoint security, mobile security and the latest in > malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Zenloadbalancer-support mailing list > [email protected] > <mailto:[email protected]> > https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support > > -- John Cooper Lead Technical Specialist (Linux) Platform Development Estates& IT Services Email: [email protected] | Work: +44 (0)1202963519 Mobile: +44 (0)7970 536230 | Address: Bournemouth University, 12 Christchurch Road, Studland House, Bournemouth, BH1 3NA ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Zenloadbalancer-support mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support
