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Chassis Description 17
Preferred Primary Adapter
With multiple adapters installed, you can specify one as the Preferred Primary adapter. For
example if you have a server with a PRO/1000 server adapter as the primary adapter and a
PRO/100+ adapter as the secondary, you could configure the PRO/1000 server adapter to be the
preferred primary. In this scenario, if the PRO/1000 server adapter fails, the PRO/100+ will take
over. Then when the PRO/1000 server adapter is replaced, it will automatically revert to being the
primary adapter in the team.
If a Preferred Primary is not selected, PROSet will attempt to select the best adapter, based on
adapter model and speed.
Mixed Adapter Teaming
AFT supports up to six server adapters per team, in any mix.
Adaptive Load Balancing
Adaptive Load Balancing (ALB) is a simple and efficient way to increase your server's transmit
throughput. With ALB you group server adapters in teams to provide an increased transmit rate
(up to 8 Gbps) using a maximum of eight adapters. The ALB software continuously analyzes
transmit loading on each adapter and balances the rate across the adapters as needed. Adapter
teams configured for ALB also provide the benefits of AFT. Receive rates remain at 100 Mbps or
1 Gbps depending on the primary adapter’s capability.
To use ALB, you must have 2-6 server adapters installed in your server or workstation and linked
to the same network switch.
Cisco Fast EtherChannel
Fast EtherChannel (FEC) is a performance technology developed by Cisco to increase your server's
throughput. Unlike ALB, FEC can be configured to increase both transmission and reception
channels between your server and switch. FEC works only with FEC-enabled switches, such as the
Catalyst 5000 series. With FEC, as you add adapters to your server, you can group them in teams
to provide up to 18 Gbps at full duplex, with a maximum of 6 server adapters. The FEC software
continuously analyzes loading on each adapter and balances network traffic across the adapters as
needed. Adapter teams configured for FEC also provide the benefits of AFT.
To use FEC, you must have 2, 4, or 6 server adapters plus use of both onboard NIC adapters
installed in your server and linked to the same FEC-enabled Cisco switch.
Keyboard and Mouse
The keyboard controller is PS/2-compatible. If specified through the System Setup Utility (SSU),
the server may be locked automatically if there is no keyboard or mouse activity for a predefined
length of time. Once the inactivity (lockout) timer has expired, the keyboard and mouse do not
respond until the previously stored password is entered. If a mouse is required, you can either
connect a USB mouse to a USB port or a PS/2 mouse to the PS/2 port using the “Y”-splitter cable.