When ZXTM raises a Traffic IP Address, it broadcasts a number of ARP replies to inform the attached Layer 2 network that it should update its ARP cache. This is to ensure that Ethernet frames associated with the Traffic IP Address in question are sent to the correct hardware interface via the correct LAN circuit.

By default, ZXTM will send 10 of these ARP broadcasts. In some scenarios, we find that Cisco hardware will ignore ARP broadcasts for a short period of time. The result is that, after ZXTM fails over, frames will be sent to the wrong LAN segment, ultimately causing connection timeouts to your Traffic IP Addresses. Read more...

The ZXTM Getting Started guide introduces the ZXTM software, describing how to install and configure the software for the first time. It contains easy step-by-step instructions regarding the download, installation and configuration of Zeus Extensible Traffic Manager 4.1 in a variety of network environments.

• Download the ZXTM 4.1 Getting Started Manual [pdf]

T3 is a proprietary protocol developed by BEA Systems. It's primary use is within BEA Weblogic's series of application servers. To read more regarding ZXTM's integration with BEA Weblogic, Zeus has published an article detailing ZXTM's interaction with BEA Weblogic