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Hi,I have a problem with MAC flapping on one of my switches. I didn't setup that environment and I founded that recently. I think person which was in company before made there mistake with configuration.Below here is a picture how it is connected. Ba...
Hi,I have a problem in network, it turns out that some kind of ARP loop happends. Below there is a draft how does it look on network.In wireshark I was able to see a flood of ARP request's and responses which causing some machines loose network conne...
Hi,So I'm facing a weird problem within my network environment. So quick backgroud on environment, our core switch is Cisco 6509-E (running VRF) with ACE module which works as a loadbalancer.The thing is that not all servers are behind loadbalancers,...
It is a typical Dell server and it has bond setup:[jtymoczko@lsrv02 ~]$ sudo /sbin/ifconfigbond1 Link encap:Ethernet HWaddr 00:1B:21:47:2A:FC inet addr:172.21.21.1 Bcast:172.21.21.3 Mask:255.255.255.252 inet6 addr: fe80::21b:21ff:fe47:2afc/64...
Steve hi,So far investigating this MAC addresses I founded that somehow bond interface which exist on the server on left failed and started using two MAC addresses of interfaces in that bond. Basically we have there MS Windows 2003 Server box, and Br...
