Mac Move Optimization; Microsoft Clustering; Default Behavior - Dell Force10 C150 Configuration Manual

Figure 25-3. Configuring mac-address-table station-move refresh-arp Command
mac-address-table station-move refresh-arp
configured at time of NIC teaming

MAC Move Optimization

MAC Move Optimization
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
station-move threshold time-interval
threshold
system log message. For example, if you configure
time-interval 5000

Microsoft Clustering

Microsoft Clustering
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
learned.
570 | Layer 2
X
MAC: A:B A:B:C:D
IP: 1.1.1.1
is supported only on platform:
is the number of times a station move must be detected in a single interval in order to trigger a
, and 4 station moves occur in 5000ms, then two log messages are generated.
is supported only on platform:
Port 0/1
Move MAC
address
Port 0/5
e
(though at the expense of CPU resources).
mac-address-table station-move threshold 2
e
(Figure 25-4); the virtual MAC address is never
fnC0026mp
mac-address-table