Adaptec 5325301638 - Snap Server 4500 NAS, Руководство администратора

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TCP/IP Options
14 Snap Server Administrator Guide
TCP/IP Options
GuardianOS Snap Servers ship with Dual Gigabit Ethernet ports. The following
table describes TCP/IP options; default settings appear in boldface.
Default TCP/IP Settings and Options
Option Setting Description
TCP/IP
Addressing DHCP By default, Snap Servers acquire an IP address from the DHCP
server on the network.
Static Administrators may assign a fixed IP address as necessary.
Network
bonding Standalone The default Standalone setting treats each port as a separate
interface, effectively disabling network bonding. Network bonding
treats two ports as a single channel for failover or load balancing
purposes.
Load
Balancing An intelligent software adaptive agent repeatedly analyzes the
traffic flow from the server and distributes the packets based on
destination addresses, evenly distributing network traffic for
optimal network performance.
The Snap Server supports a server-side load balancing
implementation called ALB (Adaptive Load Balancing). Switch-
based load balancing (GEC or FEC) is not currently supported.
Do not configure the switch ports that the Snap Server uses for
GEC or FEC.
Tip
Load balancing occurs only on Layer 3 routed protocols (IP).
Failover This mode uses the first Ethernet port as the primary network
interface and the second Ethernet port is held in reserve as the
backup interface. Redundant network interfaces ensure that an
active port is available at all times. If the primary port (Ethernet1)
fails due to a hardware or cable problem, the secondary port
(Ethernet2) assumes its network identity.
Tip
Failover mode does not provide switch fault tolerance.
Speed/
duplex Auto The default setting of Auto enables automatic negotiation of the
speed and duplex settings based on the physical port connection
to a switch. The speed setting establishes the rate of
transmission and reception of data. The duplex setting causes
the Ethernet port to transmit packets in one way or two ways at
the same time. Hubs normally only support “half” duplex.
Tip
Auto is the only allowable setting for a Gigabit port.
Fixed The Snap Server may also be set to fixed speed/duplex setting.
10Mbps/half; 10Mbps/full; 100Mbps/half; 100Mbps/full
Tip
To prevent connectivity problems when changing to a fixed
setting, see “Changing from Auto to a Fixed Setting” on page 16.