General Guidelines - Allied Telesis AT-GS950/8 User Manual

General Guidelines

The following guidelines apply when creating aggregators:
LACP must be activated on both the AT-GS950/8 switch and its

partner device.
The other device must be 802.3ad-compliant.

The AT-S107 Management software supports up to eight active

ports in an aggregate trunk at a time.
The AT-GS950/8 Gigabit Ethernet Smart Switch can support up to

eight static and LACP aggregate trunk groups at a time (for
example, four static trunks and four LACP trunks). An LACP trunk
is counted against the maximum number of trunks only when it is
active.
The ports of an aggregate trunk must be the same medium type: all

twisted pair ports or all fiber optic ports.
The ports of a trunk can be consecutive (for example ports 1-5) or

nonconsecutive (for example, ports 2, 4, 6, 8).
A port can belong to only one aggregator at a time.

A port cannot be a member of an aggregator and a static trunk at

the same time.
The ports of an aggregate trunk must be untagged members of the

same VLAN.
Twisted pair ports must be set to Auto-Negotiation or 1000 Mbps,

full-duplex mode. LACP trunking is not supported in half-duplex
mode.
1000Base-X fiber optic ports must be set to full-duplex mode.

You can create an aggregate trunk of transceivers with

1000Base-X fiber optic ports.
Only those ports that are members of an aggregator transmit

LACPDU packets.
A member port of an aggregator functions as part of an aggregate

trunk only if it receives LACPDU packets from the remote device. If
it does not receive LACPDU packets, it functions as a regular
Ethernet port, forwarding network traffic while also continuing to
transmit LACPDU packets.
The port with the highest priority in an aggregate trunk carries

broadcast packets and packets with an unknown destination.
Prior to creating an aggregate trunk between an Allied Telesis

device and another vendor's device, refer to the vendor's
documentation to determine the maximum number of active ports
the device can support in a trunk. If the number is less than eight,
AT-GS950/8 Web Interface User Guide
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