Dell Force10 S25N-S50N FTOS Configuration Guide FTOS 8.4.2.7 E-Series TeraScal - Page 570

www.dell.com | support.dell.com Figure 25-3. Configuring mac-address-table station-move refresh-arp Command MAC: A:B:C:D IP: 1.1.1.1 X Port 0/1 Move MAC address Active Link Port 0/5 fnC0026mp mac-address-table station-move refresh-arp configured at time of NIC teaming MAC Move Optimization e MAC Move Optimization is supported only on platform: Station-move detection takes 5000ms because this is the interval at which the detection algorithm runs. On the E-Series, you can reduce detection time to as little as 500ms using the command mac-address-table station-move threshold time-interval (though at the expense of CPU resources). threshold is the number of times a station move must be detected in a single interval in order to trigger a system log message. For example, if you configure mac-address-table station-move threshold 2 time-interval 5000, and 4 station moves occur in 5000ms, then two log messages are generated. Microsoft Clustering e Microsoft Clustering is supported only on platform: Microsoft Clustering allows multiple servers using Microsoft Windows to be represented by one MAC address and IP address in order to provide transparent failover or balancing. FTOS does not recognize server clusters by default; it must be configured to do so. Default Behavior When an ARP request is sent to a server cluster, either the active server or all of the servers send a reply, depending on the cluster configuration. If the active server sends a reply, the Dell Force10 switch learns the active server's MAC address. If all servers reply, the switch registers only the last received ARP reply, and the switch learns one server's actual MAC address (Figure 25-4); the virtual MAC address is never learned. 570 | Layer 2