Switch Screens; Ethernet Port Trunking; Dynamic Link Aggregation - ZyXEL Communications MSC1024G Series User Manual

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H A P T E R
This chapter describes the screens you use to configure Ethernet ports, multicast VLAN and
global switch parameters such as GARP, link aggregation, priority queues and queuing
method.

15.1 Ethernet Port Trunking

Ethernet port trunking lets you aggregate the Ethernet ports into one logical link. The switch
uses MAC-based load balancing which analyzes a packet's source and destination MAC
addresses to distribute the load between the two Ethernet ports when uplinking to the remote
switch.
The remote switch must also support Ethernet port trunking. The load-
balancing method, however, does not have to be the same as on this switch.
The two uplink ports or two subtending ports must be connected to a single
remote switch when port trunking is enabled.

15.2 Dynamic Link Aggregation

The MSC adheres to the IEEE 802.3ad standard for static and dynamic (LACP) port trunking.
The MSC supports the link aggregation IEEE 802.3ad standard. This standard describes the
Link Aggregate Control Protocol (LACP), which is a protocol that dynamically creates and
manages trunk groups.
When you enable LACP link aggregation on a port, the port can automatically negotiate with
the ports at the remote end of a link to establish trunk groups. LACP also allows port
redundancy, that is, if an operational port fails, then one of the "standby" ports become
operational without user intervention. Please note that:
• You must connect all ports point-to-point to the same Ethernet switch and configure the
ports for LACP trunking.
MSC1000G/1024G/1224G Series User's Guide

Switch Screens

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