Allied Telesis AT-GS950/48PS, AT-S111 manual General Guidelines

AT-GS950/48PS Switch Web Interface User’s Guide

General Guidelines

The following guidelines apply when creating aggregators:

LACP must be activated on both the AT-GS950/48PS switch and its partner device.

The other device must be 802.3ad-compliant.

The AT-S111 Management software supports up to eight active ports in an aggregate trunk at a time.

The AT-GS950/48PS Gigabit Ethernet PoE+ 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

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