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5-4-4. Port Controls
The menu allows changing of port configurations.
State: User can disable or enable ports 1-8, port 9 is always enabled.
Auto Negotiation: Ports 1-8 are fixed to disabled mode, and port 9 is
enabled.
Speed setting: Ports 1-8 are set at a fixed speed of 100Mbps. Port 9 is fixed
at 1000Mbps (GBIC port).
Duplex setting: User can set ports 1-8 to Full Duplex or Half Duplex. Port 9
is fixed at Full Duplex.
Flows control setting: User can set flow control function to be enabled or
disabled for ports 1-8. Port 9 is fixed at enabled.
5-4-5. Trunking
Trunking provides a standardized means for exchanging information
between Partner Systems on a link to allow their Link Aggregation Control
instances. To reach agreement on the identity of the Link Aggregation Group
to which the link belongs, move the link to that Link Aggregation
Group, and enable its transmission and reception functions in an orderly
manner. Link aggregation allows grouping of up to eight consecutive ports
into a single dedicated connection. This feature can expand bandwidth to a
device on the network. LACP operation requires full-duplex mode. For more
detailed information refer to IEEE 802.3ad.
If there are two trunk groups A and B, and B group is enabled LACP, then it
will act as a redundant link (Backup group for Trunk group A). If trunk group
A fails, Group B will be it's backup.