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LANCOM GS-2124
Chapter 4: Operation of Web- based Management
As to system restrictions about the port aggregation function on the switch,
in the management point of view, the switch supports maximum 3 trunk
groups for LACP and additional 3 trunk groups for Static Trunk. But in the sys-
tem capability view, only 3 "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 trunked"
group.
Per Trunking Group supports a maximum of 12 ready member-ports. Please
note that some decisions will automatically be made by the system while you
are configuring your trunking ports. Some configuration examples are listed
below:
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Ports using Static Trunk as their trunk method can choose their unique
Static GroupID (also 1~3, 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.
12 ports have already used Static Trunk Group ID 1, the 13th port willing
to use the same Static Trunk Group ID will be automatically set to use the
"None" trunking method and its Group ID will turn to 0. This means the
port won't aggregate with other ports.
14 ports all use LACP Trunk Group ID 1 at most 12 ports can aggregate
together and transit into the ready state.
A port using the "None" trunking method or Group ID 0 will be automati-
cally set to use the "None" trunking method with Group ID 0.
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