Lantech LGS-2816C-RPS, Руководство пользователя

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C
ONFIGURING
T
RUNK
The Port Trunking Configuration is used to configure the settings of
Link Aggregation. You can bundle more than one port with the
same speed, full duplex and the same MAC to be a single logical
port, thus the logical port aggregates the bandwidth of these ports.
This means you can apply your current Ethernet equipments to
build the bandwidth aggregation. For example, if there are three
Fast Ethernet ports aggregated in a logical port, then this logical
port has bandwidth three times as high as a single Fast Ethernet
port has.
The switch supports two kinds of port trunking methods:
LACP:
Ports using Link Aggregation Control Protocol (according to
IEEE 802.3ad specification) as their trunking method can
choose their unique LACP GroupID (1~8) to form a logic
―trunked port‖. The benefit of using LACP is that a port makes
an agreement with its peer port before it becomes a ready
member of a ―trunk group‖ (also called aggregator). LACP is
safer than the other trunking method - static trunk.
The switch LACP does not support the followings:

Link Aggregation across switches

Aggregation with non-IEEE 802.3 MAC link

Operating in half-duplex mode

Aggregate the ports with different data rates
Static Trunk:
Ports using Static Trunk as their trunk method can choose their
unique Static GroupID (also 1~8, this Static groupID can be
the same with another LACP groupID) to form a logic ―trunked
port‖. The benefit of using Static Trunk method is that a port
can immediately become a member of a trunk group without
any handshaking with its peer port. This is also a disadvantage
because the peer ports of your static trunk group may not
know that they should be aggregate together to form a ―logic
trunked port‖. Using Static Trunk on both end of a link is
strongly recommended. Please also note that low speed links
will stay in ―not ready‖ state when using static trunk to
aggregate with high speed links.
As to system restrictions about the port aggregation function on the
switch,
In the management point of view, the switch supports
maximum 8 trunk groups for LACP and additional 8 trunk groups
for Static Trunk. But in the system capability view, only 8 ―real
trunked‖ groups are supported. An LACP trunk group with more
than one ready member-ports is a ―real trunked‖ group. An LACP
trunk group with only one or less than one ready member-ports is
not a ―real trunked‖ group. Any Static trunk group is a ―real